sync

🤖 Generated with opencode
Co-Authored-By: opencode <noreply@opencode.ai>

.github/workflows/build.yml

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+name: build
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - dev
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+permissions:
+  contents: write
+  packages: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - run: git fetch --force --tags
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ">=1.23.2"
+          cache: true
+          cache-dependency-path: go.sum
+
+      - run: go mod download
+
+      - uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: latest
+          args: build --snapshot --clean

.github/workflows/deploy.yml

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+name: deploy
+
+on:
+  push:
+    branches:
+      - dontlook
+  workflow_dispatch:
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: latest
+
+      - run: bun install
+
+      - run: bun sst deploy --stage=dev
+        env:
+          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}

.github/workflows/release.yml

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+name: release
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "*"
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+permissions:
+  contents: write
+  packages: write
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - run: git fetch --force --tags
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version: ">=1.23.2"
+          cache: true
+          cache-dependency-path: go.sum
+
+      - run: go mod download
+
+      - uses: goreleaser/goreleaser-action@v6
+        with:
+          distribution: goreleaser
+          version: latest
+          args: release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.SST_GITHUB_TOKEN }}
+          AUR_KEY: ${{ secrets.AUR_KEY }}

.gitignore

@@ -0,0 +1,5 @@
+node_modules
+.opencode
+.sst
+app.log
+.env

.opencode.json

@@ -0,0 +1,3 @@
+{
+  "$schema": "./opencode-schema.json"
+}

LICENSE

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+MIT License
+
+Copyright (c) 2025 OpenCode
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# ◍OpenCode
+
+![OpenCode Terminal UI](screenshot.png)
+
+> **⚠️ Early Development Notice:** This project is in early development and is not yet ready for production use. Features may change, break, or be incomplete. Use at your own risk.
+
+A powerful terminal-based AI assistant for developers, providing intelligent coding assistance directly in your terminal.
+
+## Overview
+
+OpenCode is a Go-based CLI application that brings AI assistance to your terminal. It provides a TUI (Terminal User Interface) for interacting with various AI models to help with coding tasks, debugging, and more.
+
+## Features
+
+- **Interactive TUI**: Built with [Bubble Tea](https://github.com/charmbracelet/bubbletea) for a smooth terminal experience
+- **Multiple AI Providers**: Support for OpenAI, Anthropic Claude, Google Gemini, AWS Bedrock, Groq, Azure OpenAI, and OpenRouter
+- **Session Management**: Save and manage multiple conversation sessions
+- **Tool Integration**: AI can execute commands, search files, and modify code
+- **Vim-like Editor**: Integrated editor with text input capabilities
+- **Persistent Storage**: SQLite database for storing conversations and sessions
+- **LSP Integration**: Language Server Protocol support for code intelligence
+- **File Change Tracking**: Track and visualize file changes during sessions
+- **External Editor Support**: Open your preferred editor for composing messages
+- **Named Arguments for Custom Commands**: Create powerful custom commands with multiple named placeholders
+
+## Installation
+
+### Using the Install Script
+
+```bash
+# Install the latest version
+curl -fsSL https://opencode.ai/install | bash
+
+# Install a specific version
+curl -fsSL https://opencode.ai/install | VERSION=0.1.0 bash
+```
+
+### Using Homebrew (macOS and Linux)
+
+```bash
+brew install sst/tap/opencode
+```
+
+### Using AUR (Arch Linux)
+
+```bash
+# Using yay
+yay -S opencode-bin
+
+# Using paru
+paru -S opencode-bin
+```
+
+### Using Go
+
+```bash
+go install github.com/sst/opencode@latest
+```
+
+## Configuration
+
+OpenCode looks for configuration in the following locations:
+
+- `$HOME/.opencode.json`
+- `$XDG_CONFIG_HOME/opencode/.opencode.json`
+- `./.opencode.json` (local directory)
+
+### Environment Variables
+
+You can configure OpenCode using environment variables:
+
+| Environment Variable       | Purpose                                                |
+| -------------------------- | ------------------------------------------------------ |
+| `ANTHROPIC_API_KEY`        | For Claude models                                      |
+| `OPENAI_API_KEY`           | For OpenAI models                                      |
+| `GEMINI_API_KEY`           | For Google Gemini models                               |
+| `VERTEXAI_PROJECT`         | For Google Cloud VertexAI (Gemini)                     |
+| `VERTEXAI_LOCATION`        | For Google Cloud VertexAI (Gemini)                     |
+| `GROQ_API_KEY`             | For Groq models                                        |
+| `AWS_ACCESS_KEY_ID`        | For AWS Bedrock (Claude)                               |
+| `AWS_SECRET_ACCESS_KEY`    | For AWS Bedrock (Claude)                               |
+| `AWS_REGION`               | For AWS Bedrock (Claude)                               |
+| `AZURE_OPENAI_ENDPOINT`    | For Azure OpenAI models                                |
+| `AZURE_OPENAI_API_KEY`     | For Azure OpenAI models (optional when using Entra ID) |
+| `AZURE_OPENAI_API_VERSION` | For Azure OpenAI models                                |
+
+### Configuration File Structure
+
+```json
+{
+  "data": {
+    "directory": ".opencode"
+  },
+  "providers": {
+    "openai": {
+      "apiKey": "your-api-key",
+      "disabled": false
+    },
+    "anthropic": {
+      "apiKey": "your-api-key",
+      "disabled": false
+    },
+    "groq": {
+      "apiKey": "your-api-key",
+      "disabled": false
+    },
+    "openrouter": {
+      "apiKey": "your-api-key",
+      "disabled": false
+    }
+  },
+  "agents": {
+    "primary": {
+      "model": "claude-3.7-sonnet",
+      "maxTokens": 5000
+    },
+    "task": {
+      "model": "claude-3.7-sonnet",
+      "maxTokens": 5000
+    },
+    "title": {
+      "model": "claude-3.7-sonnet",
+      "maxTokens": 80
+    }
+  },
+  "mcpServers": {
+    "example": {
+      "type": "stdio",
+      "command": "path/to/mcp-server",
+      "env": [],
+      "args": []
+    }
+  },
+  "lsp": {
+    "go": {
+      "disabled": false,
+      "command": "gopls"
+    }
+  },
+  "shell": {
+    "path": "/bin/zsh",
+    "args": ["-l"]
+  },
+  "debug": false,
+  "debugLSP": false
+}
+```
+
+## Supported AI Models
+
+OpenCode supports a variety of AI models from different providers:
+
+### OpenAI
+
+- GPT-4.1 family (gpt-4.1, gpt-4.1-mini, gpt-4.1-nano)
+- GPT-4.5 Preview
+- GPT-4o family (gpt-4o, gpt-4o-mini)
+- O1 family (o1, o1-pro, o1-mini)
+- O3 family (o3, o3-mini)
+- O4 Mini
+
+### Anthropic
+
+- Claude 3.5 Sonnet
+- Claude 3.5 Haiku
+- Claude 3.7 Sonnet
+- Claude 3 Haiku
+- Claude 3 Opus
+
+### Google
+
+- Gemini 2.5
+- Gemini 2.5 Flash
+- Gemini 2.0 Flash
+- Gemini 2.0 Flash Lite
+
+### AWS Bedrock
+
+- Claude 3.7 Sonnet
+
+### Groq
+
+- Llama 4 Maverick (17b-128e-instruct)
+- Llama 4 Scout (17b-16e-instruct)
+- QWEN QWQ-32b
+- Deepseek R1 distill Llama 70b
+- Llama 3.3 70b Versatile
+
+### Azure OpenAI
+
+- GPT-4.1 family (gpt-4.1, gpt-4.1-mini, gpt-4.1-nano)
+- GPT-4.5 Preview
+- GPT-4o family (gpt-4o, gpt-4o-mini)
+- O1 family (o1, o1-mini)
+- O3 family (o3, o3-mini)
+- O4 Mini
+
+### Google Cloud VertexAI
+
+- Gemini 2.5
+- Gemini 2.5 Flash
+
+## Using Bedrock Models
+
+To use bedrock models with OpenCode you need three things.
+
+1. Valid AWS credentials (the env vars: `AWS_SECRET_KEY_ID`, `AWS_SECRET_ACCESS_KEY` and `AWS_REGION`)
+2. Access to the corresponding model in AWS Bedrock in your region.
+   a. You can request access in the AWS console on the Bedrock -> "Model access" page.
+3. A correct configuration file. You don't need the `providers` key. Instead you have to prefix your models per agent with `bedrock.` and then a valid model. For now only Claude 3.7 is supported.
+
+```json
+{
+  "agents": {
+    "primary": {
+      "model": "bedrock.claude-3.7-sonnet",
+      "maxTokens": 5000,
+      "reasoningEffort": ""
+    },
+    "task": {
+      "model": "bedrock.claude-3.7-sonnet",
+      "maxTokens": 5000,
+      "reasoningEffort": ""
+    },
+    "title": {
+      "model": "bedrock.claude-3.7-sonnet",
+      "maxTokens": 80,
+      "reasoningEffort": ""
+    }
+  }
+}
+```
+
+## Interactive Mode Usage
+
+```bash
+# Start OpenCode
+opencode
+
+# Start with debug logging
+opencode -d
+
+# Start with a specific working directory
+opencode -c /path/to/project
+```
+
+## Non-interactive Prompt Mode
+
+You can run OpenCode in non-interactive mode by passing a prompt directly as a command-line argument or by piping text into the command. This is useful for scripting, automation, or when you want a quick answer without launching the full TUI.
+
+```bash
+# Run a single prompt and print the AI's response to the terminal
+opencode -p "Explain the use of context in Go"
+
+# Pipe input to OpenCode (equivalent to using -p flag)
+echo "Explain the use of context in Go" | opencode
+
+# Get response in JSON format
+opencode -p "Explain the use of context in Go" -f json
+# Or with piped input
+echo "Explain the use of context in Go" | opencode -f json
+
+# Run without showing the spinner
+opencode -p "Explain the use of context in Go" -q
+# Or with piped input
+echo "Explain the use of context in Go" | opencode -q
+
+# Enable verbose logging to stderr
+opencode -p "Explain the use of context in Go" --verbose
+# Or with piped input
+echo "Explain the use of context in Go" | opencode --verbose
+
+# Restrict the agent to only use specific tools
+opencode -p "Explain the use of context in Go" --allowedTools=view,ls,glob
+# Or with piped input
+echo "Explain the use of context in Go" | opencode --allowedTools=view,ls,glob
+
+# Prevent the agent from using specific tools
+opencode -p "Explain the use of context in Go" --excludedTools=bash,edit
+# Or with piped input
+echo "Explain the use of context in Go" | opencode --excludedTools=bash,edit
+```
+
+In this mode, OpenCode will process your prompt, print the result to standard output, and then exit. All permissions are auto-approved for the session.
+
+### Tool Restrictions
+
+You can control which tools the AI assistant has access to in non-interactive mode:
+
+- `--allowedTools`: Comma-separated list of tools that the agent is allowed to use. Only these tools will be available.
+- `--excludedTools`: Comma-separated list of tools that the agent is not allowed to use. All other tools will be available.
+
+These flags are mutually exclusive - you can use either `--allowedTools` or `--excludedTools`, but not both at the same time.
+
+### Output Formats
+
+OpenCode supports the following output formats in non-interactive mode:
+
+| Format | Description                     |
+| ------ | ------------------------------- |
+| `text` | Plain text output (default)     |
+| `json` | Output wrapped in a JSON object |
+
+The output format is implemented as a strongly-typed `OutputFormat` in the codebase, ensuring type safety and validation when processing outputs.
+
+## Command-line Flags
+
+| Flag              | Short | Description                                         |
+| ----------------- | ----- | --------------------------------------------------- |
+| `--help`          | `-h`  | Display help information                            |
+| `--debug`         | `-d`  | Enable debug mode                                   |
+| `--cwd`           | `-c`  | Set current working directory                       |
+| `--prompt`        | `-p`  | Run a single prompt in non-interactive mode         |
+| `--output-format` | `-f`  | Output format for non-interactive mode (text, json) |
+| `--quiet`         | `-q`  | Hide spinner in non-interactive mode                |
+| `--verbose`       |       | Display logs to stderr in non-interactive mode      |
+| `--allowedTools`  |       | Restrict the agent to only use specified tools      |
+| `--excludedTools` |       | Prevent the agent from using specified tools        |
+
+## Keyboard Shortcuts
+
+### Global Shortcuts
+
+| Shortcut | Action                                                  |
+| -------- | ------------------------------------------------------- |
+| `Ctrl+C` | Quit application                                        |
+| `Ctrl+?` | Toggle help dialog                                      |
+| `?`      | Toggle help dialog (when not in editing mode)           |
+| `Ctrl+L` | View logs                                               |
+| `Ctrl+A` | Switch session                                          |
+| `Ctrl+K` | Command dialog                                          |
+| `Ctrl+O` | Toggle model selection dialog                           |
+| `Esc`    | Close current overlay/dialog or return to previous mode |
+
+### Chat Page Shortcuts
+
+| Shortcut | Action                                  |
+| -------- | --------------------------------------- |
+| `Ctrl+N` | Create new session                      |
+| `Ctrl+X` | Cancel current operation/generation     |
+| `i`      | Focus editor (when not in writing mode) |
+| `Esc`    | Exit writing mode and focus messages    |
+
+### Editor Shortcuts
+
+| Shortcut            | Action                                    |
+| ------------------- | ----------------------------------------- |
+| `Ctrl+S`            | Send message (when editor is focused)     |
+| `Enter` or `Ctrl+S` | Send message (when editor is not focused) |
+| `Ctrl+E`            | Open external editor                      |
+| `Esc`               | Blur editor and focus messages            |
+
+### Session Dialog Shortcuts
+
+| Shortcut   | Action           |
+| ---------- | ---------------- |
+| `↑` or `k` | Previous session |
+| `↓` or `j` | Next session     |
+| `Enter`    | Select session   |
+| `Esc`      | Close dialog     |
+
+### Model Dialog Shortcuts
+
+| Shortcut   | Action            |
+| ---------- | ----------------- |
+| `↑` or `k` | Move up           |
+| `↓` or `j` | Move down         |
+| `←` or `h` | Previous provider |
+| `→` or `l` | Next provider     |
+| `Esc`      | Close dialog      |
+
+### Permission Dialog Shortcuts
+
+| Shortcut                | Action                       |
+| ----------------------- | ---------------------------- |
+| `←` or `left`           | Switch options left          |
+| `→` or `right` or `tab` | Switch options right         |
+| `Enter` or `space`      | Confirm selection            |
+| `a`                     | Allow permission             |
+| `A`                     | Allow permission for session |
+| `d`                     | Deny permission              |
+
+### Logs Page Shortcuts
+
+| Shortcut           | Action              |
+| ------------------ | ------------------- |
+| `Backspace` or `q` | Return to chat page |
+
+## AI Assistant Tools
+
+OpenCode's AI assistant has access to various tools to help with coding tasks:
+
+### File and Code Tools
+
+| Tool          | Description                 | Parameters                                                                               |
+| ------------- | --------------------------- | ---------------------------------------------------------------------------------------- |
+| `glob`        | Find files by pattern       | `pattern` (required), `path` (optional)                                                  |
+| `grep`        | Search file contents        | `pattern` (required), `path` (optional), `include` (optional), `literal_text` (optional) |
+| `ls`          | List directory contents     | `path` (optional), `ignore` (optional array of patterns)                                 |
+| `view`        | View file contents          | `file_path` (required), `offset` (optional), `limit` (optional)                          |
+| `write`       | Write to files              | `file_path` (required), `content` (required)                                             |
+| `edit`        | Edit files                  | Various parameters for file editing                                                      |
+| `patch`       | Apply patches to files      | `file_path` (required), `diff` (required)                                                |
+| `diagnostics` | Get diagnostics information | `file_path` (optional)                                                                   |
+
+### Other Tools
+
+| Tool    | Description                     | Parameters                                                  |
+| ------- | ------------------------------- | ----------------------------------------------------------- |
+| `bash`  | Execute shell commands          | `command` (required), `timeout` (optional)                  |
+| `fetch` | Fetch data from URLs            | `url` (required), `format` (required), `timeout` (optional) |
+| `agent` | Run sub-tasks with the AI agent | `prompt` (required)                                         |
+
+## Theming
+
+OpenCode supports multiple themes for customizing the appearance of the terminal interface.
+
+### Available Themes
+
+The following predefined themes are available:
+
+- `opencode` (default)
+- `catppuccin`
+- `dracula`
+- `flexoki`
+- `gruvbox`
+- `monokai`
+- `onedark`
+- `tokyonight`
+- `tron`
+- `custom` (user-defined)
+
+### Setting a Theme
+
+You can set a theme in your `.opencode.json` configuration file:
+
+```json
+{
+  "tui": {
+    "theme": "monokai"
+  }
+}
+```
+
+### Custom Themes
+
+You can define your own custom theme by setting the `theme` to `"custom"` and providing color definitions in the `customTheme` map:
+
+```json
+{
+  "tui": {
+    "theme": "custom",
+    "customTheme": {
+      "primary": "#ffcc00",
+      "secondary": "#00ccff",
+      "accent": { "dark": "#aa00ff", "light": "#ddccff" },
+      "error": "#ff0000"
+    }
+  }
+}
+```
+
+#### Color Definition Formats
+
+Custom theme colors support two formats:
+
+1. **Simple Hex String**: A single hex color string (e.g., `"#aabbcc"`) that will be used for both light and dark terminal backgrounds.
+
+2. **Adaptive Object**: An object with `dark` and `light` keys, each holding a hex color string. This allows for adaptive colors based on the terminal's background.
+
+#### Available Color Keys
+
+You can define any of the following color keys in your `customTheme`:
+
+- Base colors: `primary`, `secondary`, `accent`
+- Status colors: `error`, `warning`, `success`, `info`
+- Text colors: `text`, `textMuted`, `textEmphasized`
+- Background colors: `background`, `backgroundSecondary`, `backgroundDarker`
+- Border colors: `borderNormal`, `borderFocused`, `borderDim`
+- Diff view colors: `diffAdded`, `diffRemoved`, `diffContext`, etc.
+
+You don't need to define all colors. Any undefined colors will fall back to the default "opencode" theme colors.
+
+### Shell Configuration
+
+OpenCode allows you to configure the shell used by the `bash` tool. By default, it uses:
+
+1. The shell specified in the config file (if provided)
+2. The shell from the `$SHELL` environment variable (if available)
+3. Falls back to `/bin/bash` if neither of the above is available
+
+To configure a custom shell, add a `shell` section to your `.opencode.json` configuration file:
+
+```json
+{
+  "shell": {
+    "path": "/bin/zsh",
+    "args": ["-l"]
+  }
+}
+```
+
+You can specify any shell executable and custom arguments:
+
+```json
+{
+  "shell": {
+    "path": "/usr/bin/fish",
+    "args": []
+  }
+}
+```
+
+## Architecture
+
+OpenCode is built with a modular architecture:
+
+- **cmd**: Command-line interface using Cobra
+- **internal/app**: Core application services
+- **internal/config**: Configuration management
+- **internal/db**: Database operations and migrations
+- **internal/llm**: LLM providers and tools integration
+- **internal/tui**: Terminal UI components and layouts
+- **internal/logging**: Logging infrastructure
+- **internal/message**: Message handling
+- **internal/session**: Session management
+- **internal/lsp**: Language Server Protocol integration
+
+## Custom Commands
+
+OpenCode supports custom commands that can be created by users to quickly send predefined prompts to the AI assistant.
+
+### Creating Custom Commands
+
+Custom commands are predefined prompts stored as Markdown files in one of three locations:
+
+1. **User Commands** (prefixed with `user:`):
+
+   ```
+   $XDG_CONFIG_HOME/opencode/commands/
+   ```
+
+   (typically `~/.config/opencode/commands/` on Linux/macOS)
+
+   or
+
+   ```
+   $HOME/.opencode/commands/
+   ```
+
+2. **Project Commands** (prefixed with `project:`):
+   ```
+   <PROJECT DIR>/.opencode/commands/
+   ```
+
+Each `.md` file in these directories becomes a custom command. The file name (without extension) becomes the command ID.
+
+For example, creating a file at `~/.config/opencode/commands/prime-context.md` with content:
+
+```markdown
+RUN git ls-files
+READ README.md
+```
+
+This creates a command called `user:prime-context`.
+
+### Command Arguments
+
+OpenCode supports named arguments in custom commands using placeholders in the format `$NAME` (where NAME consists of uppercase letters, numbers, and underscores, and must start with a letter).
+
+For example:
+
+```markdown
+# Fetch Context for Issue $ISSUE_NUMBER
+
+RUN gh issue view $ISSUE_NUMBER --json title,body,comments
+RUN git grep --author="$AUTHOR_NAME" -n .
+RUN grep -R "$SEARCH_PATTERN" $DIRECTORY
+```
+
+When you run a command with arguments, OpenCode will prompt you to enter values for each unique placeholder. Named arguments provide several benefits:
+
+- Clear identification of what each argument represents
+- Ability to use the same argument multiple times
+- Better organization for commands with multiple inputs
+
+### Organizing Commands
+
+You can organize commands in subdirectories:
+
+```
+~/.config/opencode/commands/git/commit.md
+```
+
+This creates a command with ID `user:git:commit`.
+
+### Using Custom Commands
+
+1. Press `Ctrl+K` to open the command dialog
+2. Select your custom command (prefixed with either `user:` or `project:`)
+3. Press Enter to execute the command
+
+The content of the command file will be sent as a message to the AI assistant.
+
+## MCP (Model Context Protocol)
+
+OpenCode implements the Model Context Protocol (MCP) to extend its capabilities through external tools. MCP provides a standardized way for the AI assistant to interact with external services and tools.
+
+### MCP Features
+
+- **External Tool Integration**: Connect to external tools and services via a standardized protocol
+- **Tool Discovery**: Automatically discover available tools from MCP servers
+- **Multiple Connection Types**:
+  - **Stdio**: Communicate with tools via standard input/output
+  - **SSE**: Communicate with tools via Server-Sent Events
+- **Security**: Permission system for controlling access to MCP tools
+
+### Configuring MCP Servers
+
+MCP servers are defined in the configuration file under the `mcpServers` section:
+
+```json
+{
+  "mcpServers": {
+    "example": {
+      "type": "stdio",
+      "command": "path/to/mcp-server",
+      "env": [],
+      "args": []
+    },
+    "web-example": {
+      "type": "sse",
+      "url": "https://example.com/mcp",
+      "headers": {
+        "Authorization": "Bearer token"
+      }
+    }
+  }
+}
+```
+
+### MCP Tool Usage
+
+Once configured, MCP tools are automatically available to the AI assistant alongside built-in tools. They follow the same permission model as other tools, requiring user approval before execution.
+
+## LSP (Language Server Protocol)
+
+OpenCode integrates with Language Server Protocol to provide code intelligence features across multiple programming languages.
+
+### LSP Features
+
+- **Multi-language Support**: Connect to language servers for different programming languages
+- **Diagnostics**: Receive error checking and linting information
+- **File Watching**: Automatically notify language servers of file changes
+
+### Configuring LSP
+
+Language servers are configured in the configuration file under the `lsp` section:
+
+```json
+{
+  "lsp": {
+    "go": {
+      "disabled": false,
+      "command": "gopls"
+    },
+    "typescript": {
+      "disabled": false,
+      "command": "typescript-language-server",
+      "args": ["--stdio"]
+    }
+  }
+}
+```
+
+### LSP Integration with AI
+
+The AI assistant can access LSP features through the `diagnostics` tool, allowing it to:
+
+- Check for errors in your code
+- Suggest fixes based on diagnostics
+
+While the LSP client implementation supports the full LSP protocol (including completions, hover, definition, etc.), currently only diagnostics are exposed to the AI assistant.
+
+## Development
+
+### Prerequisites
+
+- Go 1.24.0 or higher
+
+### Building from Source
+
+```bash
+# Clone the repository
+git clone https://github.com/sst/opencode.git
+cd opencode
+
+# Build
+go build -o opencode
+
+# Run
+./opencode
+```
+
+## Acknowledgments
+
+OpenCode gratefully acknowledges the contributions and support from these key individuals:
+
+- [@isaacphi](https://github.com/isaacphi) - For the [mcp-language-server](https://github.com/isaacphi/mcp-language-server) project which provided the foundation for our LSP client implementation
+- [@adamdottv](https://github.com/adamdottv) - For the design direction and UI/UX architecture
+
+Special thanks to the broader open source community whose tools and libraries have made this project possible.
+
+## License
+
+OpenCode is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.
+
+## Contributing
+
+Contributions are welcome! Here's how you can contribute:
+
+1. Fork the repository
+2. Create a feature branch (`git checkout -b feature/amazing-feature`)
+3. Commit your changes (`git commit -m 'Add some amazing feature'`)
+4. Push to the branch (`git push origin feature/amazing-feature`)
+5. Open a Pull Request
+
+Please make sure to update tests as appropriate and follow the existing code style.

bunfig.toml

@@ -0,0 +1,2 @@
+[install]
+exact = true

infra/app.ts

@@ -0,0 +1,44 @@
+export const domain = (() => {
+  if ($app.stage === "production") return "opencode.ai"
+  if ($app.stage === "dev") return "dev.opencode.ai"
+  return `${$app.stage}.dev.opencode.ai`
+})()
+
+const bucket = new sst.cloudflare.Bucket("Bucket")
+
+export const api = new sst.cloudflare.Worker("Api", {
+  domain: `api.${domain}`,
+  handler: "packages/function/src/api.ts",
+  url: true,
+  link: [bucket],
+  transform: {
+    worker: (args) => {
+      args.logpush = true
+      args.bindings = $resolve(args.bindings).apply((bindings) => [
+        ...bindings,
+        {
+          name: "SYNC_SERVER",
+          type: "durable_object_namespace",
+          className: "SyncServer",
+        },
+      ])
+      args.migrations = {
+        oldTag: "v1",
+        newTag: "v1",
+        //newSqliteClasses: ["SyncServer"],
+      }
+    },
+  },
+})
+
+new sst.cloudflare.StaticSite("Web", {
+  path: "packages/web",
+  domain,
+  environment: {
+    VITE_API_URL: api.url,
+  },
+  build: {
+    command: "bun run build",
+    output: "dist",
+  },
+})

install

@@ -0,0 +1,180 @@
+#!/usr/bin/env bash
+set -euo pipefail
+APP=opencode
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+ORANGE='\033[38;2;255;140;0m'
+NC='\033[0m' # No Color
+
+requested_version=${VERSION:-}
+
+os=$(uname -s | tr '[:upper:]' '[:lower:]')
+if [[ "$os" == "darwin" ]]; then
+    os="mac"
+fi
+arch=$(uname -m)
+
+if [[ "$arch" == "aarch64" ]]; then
+  arch="arm64"
+fi
+
+filename="$APP-$os-$arch.tar.gz"
+
+
+case "$filename" in
+    *"-linux-"*)
+        [[ "$arch" == "x86_64" || "$arch" == "arm64" || "$arch" == "i386" ]] || exit 1
+    ;;
+    *"-mac-"*)
+        [[ "$arch" == "x86_64" || "$arch" == "arm64" ]] || exit 1
+    ;;
+    *)
+        echo "${RED}Unsupported OS/Arch: $os/$arch${NC}"
+        exit 1
+    ;;
+esac
+
+INSTALL_DIR=$HOME/.opencode/bin
+mkdir -p "$INSTALL_DIR"
+
+if [ -z "$requested_version" ]; then
+    url="https://github.com/sst/opencode/releases/latest/download/$filename"
+    specific_version=$(curl -s https://api.github.com/repos/sst/opencode/releases/latest | awk -F'"' '/"tag_name": "/ {gsub(/^v/, "", $4); print $4}')
+
+    if [[ $? -ne 0 ]]; then
+        echo "${RED}Failed to fetch version information${NC}"
+        exit 1
+    fi
+else
+    url="https://github.com/sst/opencode/releases/download/v${requested_version}/$filename"
+    specific_version=$requested_version
+fi
+
+print_message() {
+    local level=$1
+    local message=$2
+    local color=""
+
+    case $level in
+        info) color="${GREEN}" ;;
+        warning) color="${YELLOW}" ;;
+        error) color="${RED}" ;;
+    esac
+
+    echo -e "${color}${message}${NC}"
+}
+
+check_version() {
+    if command -v opencode >/dev/null 2>&1; then
+        opencode_path=$(which opencode)
+
+
+        ## TODO: check if version is installed
+        # installed_version=$(opencode version)
+        installed_version="0.0.1"
+        installed_version=$(echo $installed_version | awk '{print $2}')
+
+        if [[ "$installed_version" != "$specific_version" ]]; then
+            print_message info "Installed version: ${YELLOW}$installed_version."
+        else
+            print_message info "Version ${YELLOW}$specific_version${GREEN} already installed"
+            exit 0
+        fi
+    fi
+}
+
+download_and_install() {
+    print_message info "Downloading ${ORANGE}opencode ${GREEN}version: ${YELLOW}$specific_version ${GREEN}..."
+    mkdir -p opencodetmp && cd opencodetmp
+    curl -# -L $url | tar xz
+    mv opencode $INSTALL_DIR
+    cd .. && rm -rf opencodetmp 
+}
+
+check_version
+download_and_install
+
+
+add_to_path() {
+    local config_file=$1
+    local command=$2
+
+    if [[ -w $config_file ]]; then
+        echo -e "\n# opencode" >> "$config_file"
+        echo "$command" >> "$config_file"
+        print_message info "Successfully added ${ORANGE}opencode ${GREEN}to \$PATH in $config_file"
+    else
+        print_message warning "Manually add the directory to $config_file (or similar):"
+        print_message info "  $command"
+    fi
+}
+
+XDG_CONFIG_HOME=${XDG_CONFIG_HOME:-$HOME/.config}
+
+current_shell=$(basename "$SHELL")
+case $current_shell in
+    fish)
+        config_files="$HOME/.config/fish/config.fish"
+    ;;
+    zsh)
+        config_files="$HOME/.zshrc $HOME/.zshenv $XDG_CONFIG_HOME/zsh/.zshrc $XDG_CONFIG_HOME/zsh/.zshenv"
+    ;;
+    bash)
+        config_files="$HOME/.bashrc $HOME/.bash_profile $HOME/.profile $XDG_CONFIG_HOME/bash/.bashrc $XDG_CONFIG_HOME/bash/.bash_profile"
+    ;;
+    ash)
+        config_files="$HOME/.ashrc $HOME/.profile /etc/profile"
+    ;;
+    sh)
+        config_files="$HOME/.ashrc $HOME/.profile /etc/profile"
+    ;;
+    *)
+        # Default case if none of the above matches
+        config_files="$HOME/.bashrc $HOME/.bash_profile $XDG_CONFIG_HOME/bash/.bashrc $XDG_CONFIG_HOME/bash/.bash_profile"
+    ;;
+esac
+
+config_file=""
+for file in $config_files; do
+    if [[ -f $file ]]; then
+        config_file=$file
+        break
+    fi
+done
+
+if [[ -z $config_file ]]; then
+    print_message error "No config file found for $current_shell. Checked files: ${config_files[@]}"
+    exit 1
+fi
+
+if [[ ":$PATH:" != *":$INSTALL_DIR:"* ]]; then
+    case $current_shell in
+        fish)
+            add_to_path "$config_file" "fish_add_path $INSTALL_DIR"
+        ;;
+        zsh)
+            add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"
+        ;;
+        bash)
+            add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"
+        ;;
+        ash)
+            add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"
+        ;;
+        sh)
+            add_to_path "$config_file" "export PATH=$INSTALL_DIR:\$PATH"
+        ;;
+        *)
+            print_message warning "Manually add the directory to $config_file (or similar):"
+            print_message info "  export PATH=$INSTALL_DIR:\$PATH"
+        ;;
+    esac
+fi
+
+if [ -n "${GITHUB_ACTIONS-}" ] && [ "${GITHUB_ACTIONS}" == "true" ]; then
+    echo "$INSTALL_DIR" >> $GITHUB_PATH
+    print_message info "Added $INSTALL_DIR to \$GITHUB_PATH"
+fi
+

package.json

@@ -0,0 +1,41 @@
+{
+  "$schema": "https://json.schemastore.org/package.json",
+  "name": "opencode",
+  "private": true,
+  "type": "module",
+  "packageManager": "bun@1.2.14",
+  "scripts": {
+    "dev": "sst dev"
+  },
+  "workspaces": {
+    "packages": [
+      "packages/*"
+    ],
+    "catalog": {
+      "typescript": "5.8.2",
+      "@types/node": "22.13.9",
+      "zod": "3.24.2",
+      "ai": "5.0.0-alpha.7"
+    }
+  },
+  "devDependencies": {
+    "prettier": "3.5.3",
+    "sst": "3.16.0"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/sst/opencode"
+  },
+  "license": "MIT",
+  "prettier": {
+    "semi": false
+  },
+  "overrides": {
+    "zod": "3.24.2"
+  },
+  "trustedDependencies": [
+    "esbuild",
+    "protobufjs",
+    "sharp"
+  ]
+}

packages/function/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "@opencode/function",
+  "version": "0.0.1",
+  "$schema": "https://json.schemastore.org/package.json",
+  "private": true,
+  "type": "module",
+  "devDependencies": {
+    "@cloudflare/workers-types": "4.20250522.0",
+    "typescript": "catalog:",
+    "@types/node": "catalog:"
+  }
+}

packages/function/src/api.ts

@@ -0,0 +1,167 @@
+import { DurableObject } from "cloudflare:workers"
+import { randomUUID } from "node:crypto"
+
+type Env = {
+  SYNC_SERVER: DurableObjectNamespace<SyncServer>
+  Bucket: R2Bucket
+}
+
+export class SyncServer extends DurableObject<Env> {
+  constructor(ctx: DurableObjectState, env: Env) {
+    super(ctx, env)
+  }
+  async fetch() {
+    console.log("SyncServer subscribe")
+
+    const webSocketPair = new WebSocketPair()
+    const [client, server] = Object.values(webSocketPair)
+
+    this.ctx.acceptWebSocket(server)
+
+    const data = await this.ctx.storage.list()
+    for (const [key, content] of data.entries()) {
+      server.send(JSON.stringify({ key, content }))
+    }
+
+    return new Response(null, {
+      status: 101,
+      webSocket: client,
+    })
+  }
+
+  async webSocketMessage(ws, message) {}
+
+  async webSocketClose(ws, code, reason, wasClean) {
+    ws.close(code, "Durable Object is closing WebSocket")
+  }
+
+  async publish(secret: string, key: string, content: any) {
+    if (secret !== (await this.getSecret())) throw new Error("Invalid secret")
+    const sessionID = await this.getSessionID()
+    if (
+      !key.startsWith(`session/info/${sessionID}`) &&
+      !key.startsWith(`session/message/${sessionID}/`)
+    )
+      return new Response("Error: Invalid key", { status: 400 })
+
+    // store message
+    await this.env.Bucket.put(`share/${key}.json`, JSON.stringify(content), {
+      httpMetadata: {
+        contentType: "application/json",
+      },
+    })
+    await this.ctx.storage.put(key, content)
+    const clients = this.ctx.getWebSockets()
+    console.log("SyncServer publish", key, "to", clients.length, "subscribers")
+    for (const client of clients) {
+      client.send(JSON.stringify({ key, content }))
+    }
+  }
+
+  public async share(sessionID: string) {
+    let secret = await this.getSecret()
+    if (secret) return secret
+    secret = randomUUID()
+
+    await this.ctx.storage.put("secret", secret)
+    await this.ctx.storage.put("sessionID", sessionID)
+
+    return secret
+  }
+
+  private async getSecret() {
+    return this.ctx.storage.get<string>("secret")
+  }
+
+  private async getSessionID() {
+    return this.ctx.storage.get<string>("sessionID")
+  }
+
+  async clear(secret: string) {
+    await this.assertSecret(secret)
+    await this.ctx.storage.deleteAll()
+  }
+
+  private async assertSecret(secret: string) {
+    if (secret !== (await this.getSecret())) throw new Error("Invalid secret")
+  }
+
+  static shortName(id: string) {
+    return id.substring(id.length - 8)
+  }
+}
+
+export default {
+  async fetch(request: Request, env: Env, ctx: ExecutionContext) {
+    const url = new URL(request.url)
+    const splits = url.pathname.split("/")
+    const method = splits[1]
+
+    if (request.method === "GET" && method === "") {
+      return new Response("Hello, world!", {
+        headers: { "Content-Type": "text/plain" },
+      })
+    }
+
+    if (request.method === "POST" && method === "share_create") {
+      const body = await request.json<any>()
+      const sessionID = body.sessionID
+      const short = SyncServer.shortName(sessionID)
+      const id = env.SYNC_SERVER.idFromName(short)
+      const stub = env.SYNC_SERVER.get(id)
+      const secret = await stub.share(sessionID)
+      return new Response(
+        JSON.stringify({
+          secret,
+          url: "https://dev.opencode.ai/s?id=" + short,
+        }),
+        {
+          headers: { "Content-Type": "application/json" },
+        },
+      )
+    }
+
+    if (request.method === "POST" && method === "share_delete") {
+      const body = await request.json<any>()
+      const sessionID = body.sessionID
+      const secret = body.secret
+      const id = env.SYNC_SERVER.idFromName(SyncServer.shortName(sessionID))
+      const stub = env.SYNC_SERVER.get(id)
+      await stub.clear(secret)
+      return new Response(JSON.stringify({}), {
+        headers: { "Content-Type": "application/json" },
+      })
+    }
+
+    if (request.method === "POST" && method === "share_sync") {
+      const body = await request.json<{
+        sessionID: string
+        secret: string
+        key: string
+        content: any
+      }>()
+      const name = SyncServer.shortName(body.sessionID)
+      const id = env.SYNC_SERVER.idFromName(name)
+      const stub = env.SYNC_SERVER.get(id)
+      await stub.publish(body.secret, body.key, body.content)
+      return new Response(JSON.stringify({}), {
+        headers: { "Content-Type": "application/json" },
+      })
+    }
+
+    if (request.method === "GET" && method === "share_poll") {
+      const upgradeHeader = request.headers.get("Upgrade")
+      if (!upgradeHeader || upgradeHeader !== "websocket") {
+        return new Response("Error: Upgrade header is required", {
+          status: 426,
+        })
+      }
+      const id = url.searchParams.get("id")
+      console.log("share_poll", id)
+      if (!id)
+        return new Response("Error: Share ID is required", { status: 400 })
+      const stub = env.SYNC_SERVER.get(env.SYNC_SERVER.idFromName(id))
+      return stub.fetch(request)
+    }
+  },
+}

packages/function/sst-env.d.ts

@@ -0,0 +1,25 @@
+/* This file is auto-generated by SST. Do not edit. */
+/* tslint:disable */
+/* eslint-disable */
+/* deno-fmt-ignore-file */
+
+import "sst"
+declare module "sst" {
+  export interface Resource {
+    "Web": {
+      "type": "sst.cloudflare.StaticSite"
+      "url": string
+    }
+  }
+}
+// cloudflare 
+import * as cloudflare from "@cloudflare/workers-types";
+declare module "sst" {
+  export interface Resource {
+    "Api": cloudflare.Service
+    "Bucket": cloudflare.R2Bucket
+  }
+}
+
+import "sst"
+export {}

packages/function/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "@tsconfig/node22/tsconfig.json",
+  "compilerOptions": {
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "types": ["@cloudflare/workers-types", "node"]
+  }
+}

packages/opencode/.gitignore

@@ -0,0 +1,4 @@
+node_modules
+dist
+gen
+app.log

packages/opencode/README.md

@@ -0,0 +1,15 @@
+# js
+
+To install dependencies:
+
+```bash
+bun install
+```
+
+To run:
+
+```bash
+bun run index.ts
+```
+
+This project was created using `bun init` in bun v1.2.12. [Bun](https://bun.sh) is a fast all-in-one JavaScript runtime.

packages/opencode/bin/opencode

@@ -0,0 +1,61 @@
+#!/bin/sh
+set -e
+
+if [ -n "$OPENCODE_BIN_PATH" ]; then
+    resolved="$OPENCODE_BIN_PATH"
+else
+    # Get the real path of this script, resolving any symlinks
+    script_path="$0"
+    while [ -L "$script_path" ]; do
+        link_target="$(readlink "$script_path")"
+        case "$link_target" in
+            /*) script_path="$link_target" ;;
+            *) script_path="$(dirname "$script_path")/$link_target" ;;
+        esac
+    done
+    script_dir="$(dirname "$script_path")"
+    script_dir="$(cd "$script_dir" && pwd)"
+    
+    # Map platform names
+    case "$(uname -s)" in
+        Darwin) platform="darwin" ;;
+        Linux) platform="linux" ;;
+        MINGW*|CYGWIN*|MSYS*) platform="win32" ;;
+        *) platform="$(uname -s | tr '[:upper:]' '[:lower:]')" ;;
+    esac
+    
+    # Map architecture names  
+    case "$(uname -m)" in
+        x86_64|amd64) arch="x64" ;;
+        aarch64) arch="arm64" ;;
+        armv7l) arch="arm" ;;
+        *) arch="$(uname -m)" ;;
+    esac
+    
+    name="opencode-${platform}-${arch}"
+    binary="opencode"
+    [ "$platform" = "win32" ] && binary="opencode.exe"
+    
+    # Search for the binary starting from real script location
+    resolved=""
+    current_dir="$script_dir"
+    while [ "$current_dir" != "/" ]; do
+        candidate="$current_dir/node_modules/$name/bin/$binary"
+        if [ -f "$candidate" ]; then
+            resolved="$candidate"
+            break
+        fi
+        current_dir="$(dirname "$current_dir")"
+    done
+    
+    if [ -z "$resolved" ]; then
+        printf "It seems that your package manager failed to install the right version of the SST CLI for your platform. You can try manually installing the \"%s\" package\n" "$name" >&2
+        exit 1
+    fi
+fi
+
+# Handle SIGINT gracefully
+trap '' INT
+
+# Execute the binary with all arguments
+exec "$resolved" "$@"

packages/opencode/package.json

@@ -0,0 +1,40 @@
+{
+  "$schema": "https://json.schemastore.org/package.json",
+  "version": "0.0.0",
+  "name": "opencode",
+  "type": "module",
+  "private": true,
+  "scripts": {},
+  "exports": {
+    "./*": [
+      "./src/*.ts",
+      "./src/*/index.ts"
+    ]
+  },
+  "devDependencies": {
+    "@tsconfig/bun": "1.0.7",
+    "@types/bun": "latest",
+    "@types/turndown": "5.0.5",
+    "typescript": "catalog:"
+  },
+  "dependencies": {
+    "@flystorage/file-storage": "1.1.0",
+    "@flystorage/local-fs": "1.1.0",
+    "@hono/zod-validator": "0.5.0",
+    "@standard-schema/spec": "1.0.0",
+    "ai": "catalog:",
+    "cac": "6.7.14",
+    "decimal.js": "10.5.0",
+    "diff": "8.0.2",
+    "env-paths": "3.0.0",
+    "hono": "4.7.10",
+    "hono-openapi": "0.4.8",
+    "remeda": "2.22.3",
+    "ts-lsp-client": "1.0.3",
+    "turndown": "7.2.0",
+    "vscode-jsonrpc": "8.2.1",
+    "vscode-languageclient": "8",
+    "zod": "catalog:",
+    "zod-openapi": "4.2.4"
+  }
+}

packages/opencode/script/release.ts

@@ -0,0 +1,69 @@
+#!/usr/bin/env bun
+
+import { $ } from "bun"
+
+import pkg from "../package.json"
+
+const dry = process.argv.includes("--dry")
+
+const version = `0.0.0-${Date.now()}`
+
+const GOARCH: Record<string, string> = {
+  arm64: "arm64",
+  x64: "amd64",
+}
+
+const targets = [
+  ["linux", "arm64"],
+  ["linux", "x64"],
+  ["darwin", "x64"],
+  ["darwin", "arm64"],
+  ["windows", "x64"],
+]
+
+await $`rm -rf dist`
+
+const optionalDependencies: Record<string, string> = {}
+for (const [os, arch] of targets) {
+  console.log(`building ${os}-${arch}`)
+  const name = `${pkg.name}-${os}-${arch}`
+  await $`mkdir -p dist/${name}/bin`
+  await $`GOOS=${os} GOARCH=${GOARCH[arch]} go build -ldflags="-s -w -X github.com/sst/opencode/internal/version.Version=${version}" -o ../opencode/dist/${name}/bin/tui ../tui/main.go`.cwd(
+    "../tui",
+  )
+  await $`bun build --define OPENCODE_VERSION="'${version}'" --compile --minify --target=bun-${os}-${arch} --outfile=dist/${name}/bin/opencode ./src/index.ts ./dist/${name}/bin/tui`
+  await $`rm -rf ./dist/${name}/bin/tui`
+  await Bun.file(`dist/${name}/package.json`).write(
+    JSON.stringify(
+      {
+        name,
+        version,
+        os: [os === "windows" ? "win32" : os],
+        cpu: [arch],
+      },
+      null,
+      2,
+    ),
+  )
+  if (!dry) await $`cd dist/${name} && npm publish --access public --tag latest`
+  optionalDependencies[name] = version
+}
+
+await $`mkdir -p ./dist/${pkg.name}`
+await $`cp -r ./bin ./dist/${pkg.name}/bin`
+await Bun.file(`./dist/${pkg.name}/package.json`).write(
+  JSON.stringify(
+    {
+      name: pkg.name + "-ai",
+      bin: {
+        [pkg.name]: `./bin/${pkg.name}`,
+      },
+      version,
+      optionalDependencies,
+    },
+    null,
+    2,
+  ),
+)
+if (!dry)
+  await $`cd ./dist/${pkg.name} && npm publish --access public --tag latest`

packages/opencode/src/app/app.ts

@@ -0,0 +1,78 @@
+import fs from "fs/promises"
+import { AppPath } from "./path"
+import { Log } from "../util/log"
+import { Context } from "../util/context"
+
+export namespace App {
+  const log = Log.create({ service: "app" })
+
+  export type Info = Awaited<ReturnType<typeof create>>
+
+  const ctx = Context.create<Info>("app")
+
+  async function create(input: { directory: string }) {
+    const dataDir = AppPath.data(input.directory)
+    await fs.mkdir(dataDir, { recursive: true })
+    await Log.file(input.directory)
+
+    log.info("created", { path: dataDir })
+
+    const services = new Map<
+      any,
+      {
+        state: any
+        shutdown?: (input: any) => Promise<void>
+      }
+    >()
+
+    const result = {
+      get services() {
+        return services
+      },
+      get root() {
+        return input.directory
+      },
+    }
+
+    return result
+  }
+
+  export function state<State>(
+    key: any,
+    init: (app: Info) => State,
+    shutdown?: (state: Awaited<State>) => Promise<void>,
+  ) {
+    return () => {
+      const app = ctx.use()
+      const services = app.services
+      if (!services.has(key)) {
+        log.info("registering service", { name: key })
+        services.set(key, {
+          state: init(app),
+          shutdown: shutdown,
+        })
+      }
+      return services.get(key)?.state as State
+    }
+  }
+
+  export async function use() {
+    return ctx.use()
+  }
+
+  export async function provide<T extends (app: Info) => any>(
+    input: { directory: string },
+    cb: T,
+  ) {
+    const app = await create(input)
+
+    return ctx.provide(app, async () => {
+      const result = await cb(app)
+      for (const [key, entry] of app.services.entries()) {
+        log.info("shutdown", { name: key })
+        await entry.shutdown?.(await entry.state)
+      }
+      return result
+    })
+  }
+}

packages/opencode/src/app/path.ts

@@ -0,0 +1,11 @@
+import path from "path"
+
+export namespace AppPath {
+  export function data(input: string) {
+    return path.join(input, ".opencode")
+  }
+
+  export function storage(input: string) {
+    return path.join(data(input), "storage")
+  }
+}

packages/opencode/src/bun/index.ts

@@ -0,0 +1,32 @@
+import path from "path"
+import { Log } from "../util/log"
+export namespace BunProc {
+  const log = Log.create({ service: "bun" })
+
+  export function run(
+    cmd: string[],
+    options?: Bun.SpawnOptions.OptionsObject<any, any, any>,
+  ) {
+    const root =
+      process.argv0 !== "bun"
+        ? path.resolve(process.cwd(), process.argv0)
+        : process.argv0
+    log.info("running", {
+      cmd: [root, ...cmd],
+      options,
+    })
+    const result = Bun.spawnSync([root, ...cmd], {
+      ...options,
+      argv0: "bun",
+      env: {
+        ...process.env,
+        ...options?.env,
+      },
+    })
+    if (result.exitCode !== 0) {
+      console.error(result.stderr?.toString("utf8") ?? "")
+      throw new Error(`Command failed with exit code ${result.exitCode}`)
+    }
+    return result
+  }
+}

packages/opencode/src/bus/index.ts

@@ -0,0 +1,101 @@
+import { z, type ZodType } from "zod"
+import { App } from "../app/app"
+import { Log } from "../util/log"
+
+export namespace Bus {
+  const log = Log.create({ service: "bus" })
+  type Subscription = (event: any) => void
+
+  const state = App.state("bus", () => {
+    const subscriptions = new Map<any, Subscription[]>()
+
+    return {
+      subscriptions,
+    }
+  })
+
+  export type EventDefinition = ReturnType<typeof event>
+
+  const registry = new Map<string, EventDefinition>()
+
+  export function event<Type extends string, Properties extends ZodType>(
+    type: Type,
+    properties: Properties,
+  ) {
+    const result = {
+      type,
+      properties,
+    }
+    registry.set(type, result)
+    return result
+  }
+
+  export function payloads() {
+    return z.discriminatedUnion(
+      "type",
+      registry
+        .entries()
+        .map(([type, def]) =>
+          z
+            .object({
+              type: z.literal(type),
+              properties: def.properties,
+            })
+            .openapi({
+              ref: "Event" + "." + def.type,
+            }),
+        )
+        .toArray() as any,
+    )
+  }
+
+  export function publish<Definition extends EventDefinition>(
+    def: Definition,
+    properties: z.output<Definition["properties"]>,
+  ) {
+    const payload = {
+      type: def.type,
+      properties,
+    }
+    log.info("publishing", {
+      type: def.type,
+    })
+    for (const key of [def.type, "*"]) {
+      const match = state().subscriptions.get(key)
+      for (const sub of match ?? []) {
+        sub(payload)
+      }
+    }
+  }
+
+  export function subscribe<Definition extends EventDefinition>(
+    def: Definition,
+    callback: (event: {
+      type: Definition["type"]
+      properties: z.infer<Definition["properties"]>
+    }) => void,
+  ) {
+    return raw(def.type, callback)
+  }
+
+  export function subscribeAll(callback: (event: any) => void) {
+    return raw("*", callback)
+  }
+
+  function raw(type: string, callback: (event: any) => void) {
+    log.info("subscribing", { type })
+    const subscriptions = state().subscriptions
+    let match = subscriptions.get(type) ?? []
+    match.push(callback)
+    subscriptions.set(type, match)
+
+    return () => {
+      log.info("unsubscribing", { type })
+      const match = subscriptions.get(type)
+      if (!match) return
+      const index = match.indexOf(callback)
+      if (index === -1) return
+      match.splice(index, 1)
+    }
+  }
+}

packages/opencode/src/config/config.ts

@@ -0,0 +1,56 @@
+import path from "path"
+import { Log } from "../util/log"
+import { z } from "zod"
+import { App } from "../app/app"
+import { Provider } from "../provider/provider"
+
+export namespace Config {
+  const log = Log.create({ service: "config" })
+
+  export const state = App.state("config", async (app) => {
+    const result = await load(app.root)
+    return result
+  })
+
+  export const Info = z
+    .object({
+      provider: z.lazy(() => Provider.Info.array().optional()),
+      tool: z
+        .object({
+          provider: z.record(z.string(), z.string().array()).optional(),
+        })
+        .optional(),
+    })
+    .strict()
+
+  export type Info = z.output<typeof Info>
+
+  export function get() {
+    return state()
+  }
+
+  async function load(directory: string) {
+    let result: Info = {}
+    for (const file of ["opencode.jsonc", "opencode.json"]) {
+      const resolved = path.join(directory, file)
+      log.info("searching", { path: resolved })
+      try {
+        result = await import(path.join(directory, file)).then((mod) =>
+          Info.parse(mod.default),
+        )
+        log.info("found", { path: resolved })
+        break
+      } catch (e) {
+        if (e instanceof z.ZodError) {
+          for (const issue of e.issues) {
+            log.info(issue.message)
+          }
+          throw e
+        }
+        continue
+      }
+    }
+    log.info("loaded", result)
+    return result
+  }
+}

packages/opencode/src/global/index.ts

@@ -0,0 +1,20 @@
+import envpaths from "env-paths"
+import fs from "fs/promises"
+const paths = envpaths("opencode", {
+  suffix: "",
+})
+
+await Promise.all([
+  fs.mkdir(paths.config, { recursive: true }),
+  fs.mkdir(paths.cache, { recursive: true }),
+])
+
+export namespace Global {
+  export function config() {
+    return paths.config
+  }
+
+  export function cache() {
+    return paths.cache
+  }
+}

packages/opencode/src/id/id.ts

@@ -0,0 +1,74 @@
+import { z } from "zod"
+import { randomBytes } from "crypto"
+
+export namespace Identifier {
+  const prefixes = {
+    session: "ses",
+    message: "msg",
+  } as const
+
+  export function schema(prefix: keyof typeof prefixes) {
+    return z.string().startsWith(prefixes[prefix])
+  }
+
+  const LENGTH = 26
+
+  // State for monotonic ID generation
+  let lastTimestamp = 0
+  let counter = 0
+
+  export function ascending(prefix: keyof typeof prefixes, given?: string) {
+    return generateID(prefix, false, given)
+  }
+
+  export function descending(prefix: keyof typeof prefixes, given?: string) {
+    return generateID(prefix, true, given)
+  }
+
+  function generateID(
+    prefix: keyof typeof prefixes,
+    descending: boolean,
+    given?: string,
+  ): string {
+    if (!given) {
+      return generateNewID(prefix, descending)
+    }
+
+    if (!given.startsWith(prefixes[prefix])) {
+      throw new Error(`ID ${given} does not start with ${prefixes[prefix]}`)
+    }
+    return given
+  }
+
+  function generateNewID(
+    prefix: keyof typeof prefixes,
+    descending: boolean,
+  ): string {
+    const currentTimestamp = Date.now()
+
+    if (currentTimestamp !== lastTimestamp) {
+      lastTimestamp = currentTimestamp
+      counter = 0
+    }
+    counter++
+
+    let now = BigInt(currentTimestamp) * BigInt(0x1000) + BigInt(counter)
+
+    now = descending ? ~now : now
+
+    const timeBytes = Buffer.alloc(6)
+    for (let i = 0; i < 6; i++) {
+      timeBytes[i] = Number((now >> BigInt(40 - 8 * i)) & BigInt(0xff))
+    }
+
+    const randLength = (LENGTH - 12) / 2
+    const random = randomBytes(randLength)
+
+    return (
+      prefixes[prefix] +
+      "_" +
+      timeBytes.toString("hex") +
+      random.toString("hex")
+    )
+  }
+}

packages/opencode/src/index.ts

@@ -0,0 +1,119 @@
+import "zod-openapi/extend"
+import { App } from "./app/app"
+import { Server } from "./server/server"
+import fs from "fs/promises"
+import path from "path"
+import { Bus } from "./bus"
+import { Session } from "./session/session"
+import cac from "cac"
+import { Share } from "./share/share"
+import { Message } from "./session/message"
+import { Global } from "./global"
+import { Provider } from "./provider/provider"
+
+declare global {
+  const OPENCODE_VERSION: string
+}
+
+const cli = cac("opencode")
+
+cli.command("", "Start the opencode in interactive mode").action(async () => {
+  await App.provide({ directory: process.cwd() }, async () => {
+    await Share.init()
+    const server = Server.listen()
+
+    let cmd = ["go", "run", "./main.go"]
+    let cwd = "../tui"
+    if (Bun.embeddedFiles.length > 0) {
+      const blob = Bun.embeddedFiles[0] as File
+      const binary = path.join(Global.cache(), "tui", blob.name)
+      const file = Bun.file(binary)
+      if (!(await file.exists())) {
+        console.log("installing tui binary...")
+        await Bun.write(file, blob, { mode: 0o755 })
+        await fs.chmod(binary, 0o755)
+      }
+      cwd = process.cwd()
+      cmd = [binary]
+    }
+    const proc = Bun.spawn({
+      cmd,
+      cwd,
+      stdout: "inherit",
+      stderr: "inherit",
+      stdin: "inherit",
+      onExit: () => {
+        server.stop()
+      },
+    })
+    await proc.exited
+    await server.stop()
+  })
+})
+
+cli.command("generate", "Generate OpenAPI and event specs").action(async () => {
+  const specs = await Server.openapi()
+  const dir = "gen"
+  await fs.rmdir(dir, { recursive: true }).catch(() => {})
+  await fs.mkdir(dir, { recursive: true })
+  await Bun.write(
+    path.join(dir, "openapi.json"),
+    JSON.stringify(specs, null, 2),
+  )
+})
+
+cli
+  .command("run [...message]", "Run a chat message")
+  .option("--session <id>", "Session ID")
+  .action(async (message: string[], options) => {
+    await App.provide({ directory: process.cwd() }, async () => {
+      await Share.init()
+      const session = options.session
+        ? await Session.get(options.session)
+        : await Session.create()
+      console.log("Session:", session.id)
+
+      Bus.subscribe(Message.Event.Updated, async (message) => {
+        console.log("Thinking...")
+      })
+
+      const unsub = Bus.subscribe(Session.Event.Updated, async (message) => {
+        if (message.properties.info.share?.url)
+          console.log("Share:", message.properties.info.share.url)
+        unsub()
+      })
+
+      const [provider] = await Provider.active().then((val) =>
+        val.values().toArray(),
+      )
+      if (!provider) throw new Error("no providers found")
+      const model = provider.models[0]
+      if (!model) throw new Error("no models found")
+      console.log("using", provider.id, model.id)
+      const result = await Session.chat({
+        sessionID: session.id,
+        providerID: provider.id,
+        modelID: model.id,
+        parts: [
+          {
+            type: "text",
+            text: message.join(" "),
+          },
+        ],
+      })
+
+      for (const part of result.parts) {
+        if (part.type === "text") {
+          console.log("opencode:", part.text)
+        }
+      }
+      console.log({
+        cost: result.metadata.assistant?.cost,
+        tokens: result.metadata.assistant?.tokens,
+      })
+    })
+  })
+
+cli.version(typeof OPENCODE_VERSION === "string" ? OPENCODE_VERSION : "dev")
+cli.help()
+cli.parse()

packages/opencode/src/lsp/client.ts

@@ -0,0 +1,208 @@
+import { spawn } from "child_process"
+import path from "path"
+import {
+  createMessageConnection,
+  StreamMessageReader,
+  StreamMessageWriter,
+} from "vscode-jsonrpc/node"
+import type { Diagnostic as VSCodeDiagnostic } from "vscode-languageserver-types"
+import { App } from "../app/app"
+import { Log } from "../util/log"
+import { LANGUAGE_EXTENSIONS } from "./language"
+import { Bus } from "../bus"
+import z from "zod"
+
+export namespace LSPClient {
+  const log = Log.create({ service: "lsp.client" })
+
+  export type Info = Awaited<ReturnType<typeof create>>
+
+  export type Diagnostic = VSCodeDiagnostic
+
+  export const Event = {
+    Diagnostics: Bus.event(
+      "lsp.client.diagnostics",
+      z.object({
+        serverID: z.string(),
+        path: z.string(),
+      }),
+    ),
+  }
+
+  export async function create(input: { cmd: string[]; serverID: string }) {
+    log.info("starting client", input)
+
+    const app = await App.use()
+    const [command, ...args] = input.cmd
+    const server = spawn(command, args, {
+      stdio: ["pipe", "pipe", "pipe"],
+      cwd: app.root,
+    })
+
+    const connection = createMessageConnection(
+      new StreamMessageReader(server.stdout),
+      new StreamMessageWriter(server.stdin),
+    )
+
+    const diagnostics = new Map<string, Diagnostic[]>()
+    connection.onNotification("textDocument/publishDiagnostics", (params) => {
+      const path = new URL(params.uri).pathname
+      log.info("textDocument/publishDiagnostics", {
+        path,
+      })
+      const exists = diagnostics.has(path)
+      diagnostics.set(path, params.diagnostics)
+      // servers seem to send one blank publishDiagnostics event before the first real one
+      if (!exists && !params.diagnostics.length) return
+      Bus.publish(Event.Diagnostics, { path, serverID: input.serverID })
+    })
+    connection.listen()
+
+    await connection.sendRequest("initialize", {
+      processId: server.pid,
+      initializationOptions: {
+        workspaceFolders: [
+          {
+            name: "workspace",
+            uri: "file://" + app.root,
+          },
+        ],
+        tsserver: {
+          path: require.resolve("typescript/lib/tsserver.js"),
+        },
+      },
+      capabilities: {
+        workspace: {
+          configuration: true,
+          didChangeConfiguration: {
+            dynamicRegistration: true,
+          },
+          didChangeWatchedFiles: {
+            dynamicRegistration: true,
+            relativePatternSupport: true,
+          },
+        },
+        textDocument: {
+          synchronization: {
+            dynamicRegistration: true,
+            didSave: true,
+          },
+          completion: {
+            completionItem: {},
+          },
+          codeLens: {
+            dynamicRegistration: true,
+          },
+          documentSymbol: {},
+          codeAction: {
+            codeActionLiteralSupport: {
+              codeActionKind: {
+                valueSet: [],
+              },
+            },
+          },
+          publishDiagnostics: {
+            versionSupport: true,
+          },
+          semanticTokens: {
+            requests: {
+              range: {},
+              full: {},
+            },
+            tokenTypes: [],
+            tokenModifiers: [],
+            formats: [],
+          },
+        },
+        window: {},
+      },
+    })
+    await connection.sendNotification("initialized", {})
+    log.info("initialized")
+
+    const files = new Set<string>()
+
+    const result = {
+      get clientID() {
+        return input.serverID
+      },
+      get connection() {
+        return connection
+      },
+      notify: {
+        async open(input: { path: string }) {
+          const file = Bun.file(input.path)
+          const text = await file.text()
+          const opened = files.has(input.path)
+          if (!opened) {
+            log.info("textDocument/didOpen", input)
+            diagnostics.delete(input.path)
+            const extension = path.extname(input.path)
+            const languageId = LANGUAGE_EXTENSIONS[extension] ?? "plaintext"
+            await connection.sendNotification("textDocument/didOpen", {
+              textDocument: {
+                uri: `file://` + input.path,
+                languageId,
+                version: Date.now(),
+                text,
+              },
+            })
+            files.add(input.path)
+            return
+          }
+
+          log.info("textDocument/didChange", input)
+          diagnostics.delete(input.path)
+          await connection.sendNotification("textDocument/didChange", {
+            textDocument: {
+              uri: `file://` + input.path,
+              version: Date.now(),
+            },
+            contentChanges: [
+              {
+                text,
+              },
+            ],
+          })
+        },
+      },
+      get diagnostics() {
+        return diagnostics
+      },
+      async waitForDiagnostics(input: { path: string }) {
+        log.info("waiting for diagnostics", input)
+        let unsub: () => void
+        let timeout: NodeJS.Timeout
+        return await Promise.race([
+          new Promise<void>(async (resolve) => {
+            unsub = Bus.subscribe(Event.Diagnostics, (event) => {
+              if (
+                event.properties.path === input.path &&
+                event.properties.serverID === result.clientID
+              ) {
+                log.info("got diagnostics", input)
+                clearTimeout(timeout)
+                unsub?.()
+                resolve()
+              }
+            })
+          }),
+          new Promise<void>((resolve) => {
+            timeout = setTimeout(() => {
+              log.info("timed out refreshing diagnostics", input)
+              unsub?.()
+              resolve()
+            }, 5000)
+          }),
+        ])
+      },
+      async shutdown() {
+        log.info("shutting down")
+        connection.end()
+        connection.dispose()
+      },
+    }
+
+    return result
+  }
+}

packages/opencode/src/lsp/index.ts

@@ -0,0 +1,131 @@
+import { App } from "../app/app"
+import { Log } from "../util/log"
+import { LSPClient } from "./client"
+import path from "path"
+
+export namespace LSP {
+  const log = Log.create({ service: "lsp" })
+
+  const state = App.state(
+    "lsp",
+    async () => {
+      log.info("initializing")
+      const clients = new Map<string, LSPClient.Info>()
+
+      return {
+        clients,
+      }
+    },
+    async (state) => {
+      for (const client of state.clients.values()) {
+        await client.shutdown()
+      }
+    },
+  )
+
+  export async function file(input: string) {
+    const extension = path.parse(input).ext
+    const s = await state()
+    const matches = AUTO.filter((x) => x.extensions.includes(extension))
+    for (const match of matches) {
+      const existing = s.clients.get(match.id)
+      if (existing) continue
+      const client = await LSPClient.create({
+        cmd: match.command,
+        serverID: match.id,
+      })
+      s.clients.set(match.id, client)
+    }
+    await run(async (client) => {
+      const wait = client.waitForDiagnostics({ path: input })
+      await client.notify.open({ path: input })
+      return wait
+    })
+  }
+
+  export async function diagnostics() {
+    const results: Record<string, LSPClient.Diagnostic[]> = {}
+    for (const result of await run(async (client) => client.diagnostics)) {
+      for (const [path, diagnostics] of result.entries()) {
+        const arr = results[path] || []
+        arr.push(...diagnostics)
+        results[path] = arr
+      }
+    }
+    return results
+  }
+
+  export async function hover(input: {
+    file: string
+    line: number
+    character: number
+  }) {
+    return run((client) => {
+      return client.connection.sendRequest("textDocument/hover", {
+        textDocument: {
+          uri: `file://${input.file}`,
+        },
+        position: {
+          line: input.line,
+          character: input.character,
+        },
+      })
+    })
+  }
+
+  async function run<T>(
+    input: (client: LSPClient.Info) => Promise<T>,
+  ): Promise<T[]> {
+    const clients = await state().then((x) => [...x.clients.values()])
+    const tasks = clients.map((x) => input(x))
+    return Promise.all(tasks)
+  }
+
+  const AUTO: {
+    id: string
+    command: string[]
+    extensions: string[]
+    install?: () => Promise<void>
+  }[] = [
+    {
+      id: "typescript",
+      command: ["bun", "x", "typescript-language-server", "--stdio"],
+      extensions: [
+        ".ts",
+        ".tsx",
+        ".js",
+        ".jsx",
+        ".mjs",
+        ".cjs",
+        ".mts",
+        ".cts",
+        ".mtsx",
+        ".ctsx",
+      ],
+    },
+    /*
+    {
+      id: "golang",
+      command: ["gopls"],
+      extensions: [".go"],
+    },
+    */
+  ]
+
+  export namespace Diagnostic {
+    export function pretty(diagnostic: LSPClient.Diagnostic) {
+      const severityMap = {
+        1: "ERROR",
+        2: "WARN",
+        3: "INFO",
+        4: "HINT",
+      }
+
+      const severity = severityMap[diagnostic.severity || 1]
+      const line = diagnostic.range.start.line + 1
+      const col = diagnostic.range.start.character + 1
+
+      return `${severity} [${line}:${col}] ${diagnostic.message}`
+    }
+  }
+}

packages/opencode/src/lsp/language.ts

@@ -0,0 +1,89 @@
+export const LANGUAGE_EXTENSIONS: Record<string, string> = {
+  ".abap": "abap",
+  ".bat": "bat",
+  ".bib": "bibtex",
+  ".bibtex": "bibtex",
+  ".clj": "clojure",
+  ".coffee": "coffeescript",
+  ".c": "c",
+  ".cpp": "cpp",
+  ".cxx": "cpp",
+  ".cc": "cpp",
+  ".c++": "cpp",
+  ".cs": "csharp",
+  ".css": "css",
+  ".d": "d",
+  ".pas": "pascal",
+  ".pascal": "pascal",
+  ".diff": "diff",
+  ".patch": "diff",
+  ".dart": "dart",
+  ".dockerfile": "dockerfile",
+  ".ex": "elixir",
+  ".exs": "elixir",
+  ".erl": "erlang",
+  ".hrl": "erlang",
+  ".fs": "fsharp",
+  ".fsi": "fsharp",
+  ".fsx": "fsharp",
+  ".fsscript": "fsharp",
+  ".gitcommit": "git-commit",
+  ".gitrebase": "git-rebase",
+  ".go": "go",
+  ".groovy": "groovy",
+  ".hbs": "handlebars",
+  ".handlebars": "handlebars",
+  ".hs": "haskell",
+  ".html": "html",
+  ".htm": "html",
+  ".ini": "ini",
+  ".java": "java",
+  ".js": "javascript",
+  ".jsx": "javascriptreact",
+  ".json": "json",
+  ".tex": "latex",
+  ".latex": "latex",
+  ".less": "less",
+  ".lua": "lua",
+  ".makefile": "makefile",
+  makefile: "makefile",
+  ".md": "markdown",
+  ".markdown": "markdown",
+  ".m": "objective-c",
+  ".mm": "objective-cpp",
+  ".pl": "perl",
+  ".pm": "perl6",
+  ".php": "php",
+  ".ps1": "powershell",
+  ".psm1": "powershell",
+  ".pug": "jade",
+  ".jade": "jade",
+  ".py": "python",
+  ".r": "r",
+  ".cshtml": "razor",
+  ".razor": "razor",
+  ".rb": "ruby",
+  ".rs": "rust",
+  ".scss": "scss",
+  ".sass": "sass",
+  ".scala": "scala",
+  ".shader": "shaderlab",
+  ".sh": "shellscript",
+  ".bash": "shellscript",
+  ".zsh": "shellscript",
+  ".ksh": "shellscript",
+  ".sql": "sql",
+  ".swift": "swift",
+  ".ts": "typescript",
+  ".tsx": "typescriptreact",
+  ".mts": "typescript",
+  ".cts": "typescript",
+  ".mtsx": "typescriptreact",
+  ".ctsx": "typescriptreact",
+  ".xml": "xml",
+  ".xsl": "xsl",
+  ".yaml": "yaml",
+  ".yml": "yaml",
+  ".mjs": "javascript",
+  ".cjs": "javascript",
+} as const

packages/opencode/src/provider/database.ts

@@ -0,0 +1,62 @@
+import type { Provider } from "./provider"
+
+export const PROVIDER_DATABASE: Provider.Info[] = [
+  {
+    id: "anthropic",
+    name: "Anthropic",
+    models: [
+      {
+        id: "claude-sonnet-4-20250514",
+        name: "Claude Sonnet 4",
+        cost: {
+          input: 3.0 / 1_000_000,
+          output: 15.0 / 1_000_000,
+          inputCached: 3.75 / 1_000_000,
+          outputCached: 0.3 / 1_000_000,
+        },
+        contextWindow: 200_000,
+        maxOutputTokens: 50_000,
+        attachment: true,
+      },
+    ],
+  },
+  {
+    id: "openai",
+    name: "OpenAI",
+    models: [
+      {
+        id: "codex-mini-latest",
+        name: "Codex Mini",
+        cost: {
+          input: 1.5 / 1_000_000,
+          inputCached: 0.375 / 1_000_000,
+          output: 6.0 / 1_000_000,
+          outputCached: 0.0 / 1_000_000,
+        },
+        contextWindow: 200_000,
+        maxOutputTokens: 100_000,
+        attachment: true,
+        reasoning: true,
+      },
+    ],
+  },
+  {
+    id: "google",
+    name: "Google",
+    models: [
+      {
+        id: "gemini-2.5-pro-preview-03-25",
+        name: "Gemini 2.5 Pro",
+        cost: {
+          input: 1.25 / 1_000_000,
+          inputCached: 0 / 1_000_000,
+          output: 10 / 1_000_000,
+          outputCached: 0 / 1_000_000,
+        },
+        contextWindow: 1_000_000,
+        maxOutputTokens: 50_000,
+        attachment: true,
+      },
+    ],
+  },
+]

packages/opencode/src/provider/provider.ts

@@ -0,0 +1,176 @@
+import z from "zod"
+import { App } from "../app/app"
+import { Config } from "../config/config"
+import { PROVIDER_DATABASE } from "./database"
+import { NoSuchModelError, type LanguageModel, type Provider as SDK } from "ai"
+import { Log } from "../util/log"
+import path from "path"
+import { Global } from "../global"
+import { BunProc } from "../bun"
+import { BashTool } from "../tool/bash"
+import { EditTool } from "../tool/edit"
+import { FetchTool } from "../tool/fetch"
+import { GlobTool } from "../tool/glob"
+import { GrepTool } from "../tool/grep"
+import { ListTool } from "../tool/ls"
+import { LspDiagnosticTool } from "../tool/lsp-diagnostics"
+import { LspHoverTool } from "../tool/lsp-hover"
+import { PatchTool } from "../tool/patch"
+import { ViewTool } from "../tool/view"
+import type { Tool } from "../tool/tool"
+
+export namespace Provider {
+  const log = Log.create({ service: "provider" })
+
+  export const Model = z
+    .object({
+      id: z.string(),
+      name: z.string().optional(),
+      cost: z.object({
+        input: z.number(),
+        inputCached: z.number(),
+        output: z.number(),
+        outputCached: z.number(),
+      }),
+      contextWindow: z.number(),
+      maxOutputTokens: z.number().optional(),
+      attachment: z.boolean(),
+      reasoning: z.boolean().optional(),
+    })
+    .openapi({
+      ref: "Provider.Model",
+    })
+  export type Model = z.output<typeof Model>
+
+  export const Info = z
+    .object({
+      id: z.string(),
+      name: z.string(),
+      options: z.record(z.string(), z.any()).optional(),
+      models: Model.array(),
+    })
+    .openapi({
+      ref: "Provider.Info",
+    })
+  export type Info = z.output<typeof Info>
+
+  const AUTODETECT: Record<string, string[]> = {
+    anthropic: ["ANTHROPIC_API_KEY"],
+    openai: ["OPENAI_API_KEY"],
+    google: ["GOOGLE_GENERATIVE_AI_API_KEY", "GEMINI_API_KEY"],
+  }
+
+  const state = App.state("provider", async () => {
+    const config = await Config.get()
+    const providers = new Map<string, Info>()
+    const models = new Map<string, { info: Model; language: LanguageModel }>()
+    const sdk = new Map<string, SDK>()
+
+    for (const item of PROVIDER_DATABASE) {
+      if (!AUTODETECT[item.id].some((env) => process.env[env])) continue
+      providers.set(item.id, item)
+    }
+
+    for (const item of config.provider ?? []) {
+      providers.set(item.id, item)
+    }
+
+    return {
+      models,
+      providers,
+      sdk,
+    }
+  })
+
+  export async function active() {
+    return state().then((state) => state.providers)
+  }
+
+  async function getSDK(providerID: string) {
+    const s = await state()
+    if (s.sdk.has(providerID)) return s.sdk.get(providerID)!
+
+    const dir = path.join(Global.cache(), `node_modules`, `@ai-sdk`, providerID)
+    if (!(await Bun.file(path.join(dir, "package.json")).exists())) {
+      log.info("installing", {
+        providerID,
+      })
+      BunProc.run(["add", `@ai-sdk/${providerID}@alpha`], {
+        cwd: Global.cache(),
+      })
+    }
+    const mod = await import(path.join(dir))
+    const fn = mod[Object.keys(mod).find((key) => key.startsWith("create"))!]
+    const loaded = fn(s.providers.get(providerID)?.options)
+    s.sdk.set(providerID, loaded)
+    return loaded as SDK
+  }
+
+  export async function getModel(providerID: string, modelID: string) {
+    const key = `${providerID}/${modelID}`
+    const s = await state()
+    if (s.models.has(key)) return s.models.get(key)!
+
+    log.info("loading", {
+      providerID,
+      modelID,
+    })
+
+    const provider = s.providers.get(providerID)
+    if (!provider) throw new ModelNotFoundError(modelID)
+    const info = provider.models.find((m) => m.id === modelID)
+    if (!info) throw new ModelNotFoundError(modelID)
+
+    const sdk = await getSDK(providerID)
+    if (!sdk) throw new ModelNotFoundError(modelID)
+
+    try {
+      const language = sdk.languageModel(modelID)
+      log.info("found", { providerID, modelID })
+      s.models.set(key, {
+        info,
+        language,
+      })
+      return {
+        info,
+        language,
+      }
+    } catch (e) {
+      if (e instanceof NoSuchModelError) throw new ModelNotFoundError(modelID)
+      throw e
+    }
+  }
+
+  const TOOLS = [
+    BashTool,
+    EditTool,
+    FetchTool,
+    GlobTool,
+    GrepTool,
+    ListTool,
+    LspDiagnosticTool,
+    LspHoverTool,
+    PatchTool,
+    ViewTool,
+    EditTool,
+  ]
+  const TOOL_MAPPING: Record<string, Tool.Info[]> = {
+    anthropic: TOOLS,
+    openai: TOOLS,
+    google: TOOLS,
+  }
+  export async function tools(providerID: string) {
+    const cfg = await Config.get()
+    if (cfg.tool?.provider?.[providerID])
+      return cfg.tool.provider[providerID].map(
+        (id) => TOOLS.find((t) => t.id === id)!,
+      )
+    return TOOL_MAPPING[providerID] ?? TOOLS
+  }
+
+  class ModelNotFoundError extends Error {
+    constructor(public readonly model: string) {
+      super()
+    }
+  }
+}

packages/opencode/src/server/server.ts

@@ -0,0 +1,303 @@
+import { Log } from "../util/log"
+import { Bus } from "../bus"
+import { describeRoute, generateSpecs, openAPISpecs } from "hono-openapi"
+import { Hono } from "hono"
+import { streamSSE } from "hono/streaming"
+import { Session } from "../session/session"
+import { resolver, validator as zValidator } from "hono-openapi/zod"
+import { z } from "zod"
+import { LLM } from "../llm/llm"
+import { Message } from "../session/message"
+import { Provider } from "../provider/provider"
+
+export namespace Server {
+  const log = Log.create({ service: "server" })
+  const PORT = 16713
+
+  export type App = ReturnType<typeof app>
+
+  function app() {
+    const app = new Hono()
+
+    const result = app
+      .get(
+        "/openapi",
+        openAPISpecs(app, {
+          documentation: {
+            info: {
+              title: "opencode",
+              version: "1.0.0",
+              description: "opencode api",
+            },
+            openapi: "3.0.0",
+          },
+        }),
+      )
+      .get(
+        "/event",
+        describeRoute({
+          description: "Get events",
+          responses: {
+            200: {
+              description: "Event stream",
+              content: {
+                "application/json": {
+                  schema: resolver(
+                    Bus.payloads().openapi({
+                      ref: "Event",
+                    }),
+                  ),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => {
+          log.info("event connected")
+          return streamSSE(c, async (stream) => {
+            stream.writeSSE({
+              data: JSON.stringify({}),
+            })
+            const unsub = Bus.subscribeAll(async (event) => {
+              await stream.writeSSE({
+                data: JSON.stringify(event),
+              })
+            })
+            await new Promise<void>((resolve) => {
+              stream.onAbort(() => {
+                unsub()
+                resolve()
+                log.info("event disconnected")
+              })
+            })
+          })
+        },
+      )
+      .post(
+        "/session_create",
+        describeRoute({
+          description: "Create a new session",
+          responses: {
+            200: {
+              description: "Successfully created session",
+              content: {
+                "application/json": {
+                  schema: resolver(Session.Info),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => {
+          const session = await Session.create()
+          return c.json(session)
+        },
+      )
+      .post(
+        "/session_share",
+        describeRoute({
+          description: "Share the session",
+          responses: {
+            200: {
+              description: "Successfully shared session",
+              content: {
+                "application/json": {
+                  schema: resolver(Session.Info),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            sessionID: z.string(),
+          }),
+        ),
+        async (c) => {
+          const body = c.req.valid("json")
+          await Session.share(body.sessionID)
+          const session = await Session.get(body.sessionID)
+          return c.json(session)
+        },
+      )
+      .post(
+        "/session_messages",
+        describeRoute({
+          description: "Get messages for a session",
+          responses: {
+            200: {
+              description: "Successfully created session",
+              content: {
+                "application/json": {
+                  schema: resolver(Message.Info.array()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            sessionID: z.string(),
+          }),
+        ),
+        async (c) => {
+          const messages = await Session.messages(c.req.valid("json").sessionID)
+          return c.json(messages)
+        },
+      )
+      .post(
+        "/session_list",
+        describeRoute({
+          description: "List all sessions",
+          responses: {
+            200: {
+              description: "List of sessions",
+              content: {
+                "application/json": {
+                  schema: resolver(Session.Info.array()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => {
+          const sessions = await Array.fromAsync(Session.list())
+          return c.json(sessions)
+        },
+      )
+      .post(
+        "/session_abort",
+        describeRoute({
+          description: "Abort a session",
+          responses: {
+            200: {
+              description: "Aborted session",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            sessionID: z.string(),
+          }),
+        ),
+        async (c) => {
+          const body = c.req.valid("json")
+          return c.json(Session.abort(body.sessionID))
+        },
+      )
+      .post(
+        "/session_summarize",
+        describeRoute({
+          description: "Summarize the session",
+          responses: {
+            200: {
+              description: "Summarize the session",
+              content: {
+                "application/json": {
+                  schema: resolver(z.boolean()),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            sessionID: z.string(),
+            providerID: z.string(),
+            modelID: z.string(),
+          }),
+        ),
+        async (c) => {
+          const body = c.req.valid("json")
+          await Session.summarize(body)
+          return c.json(true)
+        },
+      )
+      .post(
+        "/session_chat",
+        describeRoute({
+          description: "Chat with a model",
+          responses: {
+            200: {
+              description: "Chat with a model",
+              content: {
+                "application/json": {
+                  schema: resolver(Message.Info),
+                },
+              },
+            },
+          },
+        }),
+        zValidator(
+          "json",
+          z.object({
+            sessionID: z.string(),
+            providerID: z.string(),
+            modelID: z.string(),
+            parts: Message.Part.array(),
+          }),
+        ),
+        async (c) => {
+          const body = c.req.valid("json")
+          const msg = await Session.chat(body)
+          return c.json(msg)
+        },
+      )
+      .post(
+        "/provider_list",
+        describeRoute({
+          description: "List all providers",
+          responses: {
+            200: {
+              description: "List of providers",
+              content: {
+                "application/json": {
+                  schema: resolver(Provider.Info.array()),
+                },
+              },
+            },
+          },
+        }),
+        async (c) => {
+          const providers = await Provider.active()
+          return c.json(providers.values().toArray())
+        },
+      )
+
+    return result
+  }
+
+  export async function openapi() {
+    const a = app()
+    const result = await generateSpecs(a, {
+      documentation: {
+        info: {
+          title: "opencode",
+          version: "1.0.0",
+          description: "opencode api",
+        },
+        openapi: "3.0.0",
+      },
+    })
+    return result
+  }
+
+  export function listen() {
+    const server = Bun.serve({
+      port: PORT,
+      hostname: "0.0.0.0",
+      idleTimeout: 0,
+      fetch: app().fetch,
+    })
+    return server
+  }
+}

packages/opencode/src/session/message.ts

@@ -0,0 +1,171 @@
+import z from "zod"
+import { Bus } from "../bus"
+
+export namespace Message {
+  export const ToolCall = z
+    .object({
+      state: z.literal("call"),
+      step: z.number().optional(),
+      toolCallId: z.string(),
+      toolName: z.string(),
+      args: z.custom<Required<unknown>>(),
+    })
+    .openapi({
+      ref: "Message.ToolInvocation.ToolCall",
+    })
+  export type ToolCall = z.infer<typeof ToolCall>
+
+  export const ToolPartialCall = z
+    .object({
+      state: z.literal("partial-call"),
+      step: z.number().optional(),
+      toolCallId: z.string(),
+      toolName: z.string(),
+      args: z.custom<Required<unknown>>(),
+    })
+    .openapi({
+      ref: "Message.ToolInvocation.ToolPartialCall",
+    })
+  export type ToolPartialCall = z.infer<typeof ToolPartialCall>
+
+  export const ToolResult = z
+    .object({
+      state: z.literal("result"),
+      step: z.number().optional(),
+      toolCallId: z.string(),
+      toolName: z.string(),
+      args: z.custom<Required<unknown>>(),
+      result: z.string(),
+    })
+    .openapi({
+      ref: "Message.ToolInvocation.ToolResult",
+    })
+  export type ToolResult = z.infer<typeof ToolResult>
+
+  export const ToolInvocation = z
+    .discriminatedUnion("state", [ToolCall, ToolPartialCall, ToolResult])
+    .openapi({
+      ref: "Message.ToolInvocation",
+    })
+  export type ToolInvocation = z.infer<typeof ToolInvocation>
+
+  export const TextPart = z
+    .object({
+      type: z.literal("text"),
+      text: z.string(),
+    })
+    .openapi({
+      ref: "Message.Part.Text",
+    })
+  export type TextPart = z.infer<typeof TextPart>
+
+  export const ReasoningPart = z
+    .object({
+      type: z.literal("reasoning"),
+      text: z.string(),
+      providerMetadata: z.record(z.any()).optional(),
+    })
+    .openapi({
+      ref: "Message.Part.Reasoning",
+    })
+  export type ReasoningPart = z.infer<typeof ReasoningPart>
+
+  export const ToolInvocationPart = z
+    .object({
+      type: z.literal("tool-invocation"),
+      toolInvocation: ToolInvocation,
+    })
+    .openapi({
+      ref: "Message.Part.ToolInvocation",
+    })
+  export type ToolInvocationPart = z.infer<typeof ToolInvocationPart>
+
+  export const SourceUrlPart = z
+    .object({
+      type: z.literal("source-url"),
+      sourceId: z.string(),
+      url: z.string(),
+      title: z.string().optional(),
+      providerMetadata: z.record(z.any()).optional(),
+    })
+    .openapi({
+      ref: "Message.Part.SourceUrl",
+    })
+  export type SourceUrlPart = z.infer<typeof SourceUrlPart>
+
+  export const FilePart = z
+    .object({
+      type: z.literal("file"),
+      mediaType: z.string(),
+      filename: z.string().optional(),
+      url: z.string(),
+    })
+    .openapi({
+      ref: "Message.Part.File",
+    })
+  export type FilePart = z.infer<typeof FilePart>
+
+  export const StepStartPart = z
+    .object({
+      type: z.literal("step-start"),
+    })
+    .openapi({
+      ref: "Message.Part.StepStart",
+    })
+  export type StepStartPart = z.infer<typeof StepStartPart>
+
+  export const Part = z
+    .discriminatedUnion("type", [
+      TextPart,
+      ReasoningPart,
+      ToolInvocationPart,
+      SourceUrlPart,
+      FilePart,
+      StepStartPart,
+    ])
+    .openapi({
+      ref: "Message.Part",
+    })
+  export type Part = z.infer<typeof Part>
+
+  export const Info = z
+    .object({
+      id: z.string(),
+      role: z.enum(["system", "user", "assistant"]),
+      parts: z.array(Part),
+      metadata: z.object({
+        time: z.object({
+          created: z.number(),
+          completed: z.number().optional(),
+        }),
+        sessionID: z.string(),
+        tool: z.record(z.string(), z.any()),
+        assistant: z
+          .object({
+            modelID: z.string(),
+            providerID: z.string(),
+            cost: z.number(),
+            summary: z.boolean().optional(),
+            tokens: z.object({
+              input: z.number(),
+              output: z.number(),
+              reasoning: z.number(),
+            }),
+          })
+          .optional(),
+      }),
+    })
+    .openapi({
+      ref: "Message.Info",
+    })
+  export type Info = z.infer<typeof Info>
+
+  export const Event = {
+    Updated: Bus.event(
+      "message.updated",
+      z.object({
+        info: Info,
+      }),
+    ),
+  }
+}

packages/opencode/src/session/prompt/anthropic.txt

@@ -0,0 +1,95 @@
+You are OpenCode, an interactive CLI tool that helps users with software engineering tasks. Use the instructions below and the tools available to you to assist the user.
+
+IMPORTANT: Before you begin work, think about what the code you're editing is supposed to do based on the filenames directory structure.
+
+# Memory
+If the current working directory contains a file called OpenCode.md, it will be automatically added to your context. This file serves multiple purposes:
+1. Storing frequently used bash commands (build, test, lint, etc.) so you can use them without searching each time
+2. Recording the user's code style preferences (naming conventions, preferred libraries, etc.)
+3. Maintaining useful information about the codebase structure and organization
+
+When you spend time searching for commands to typecheck, lint, build, or test, you should ask the user if it's okay to add those commands to CONTEXT.md. Similarly, when learning about code style preferences or important codebase information, ask if it's okay to add that to CONTEXT.md so you can remember it for next time.
+
+# Tone and style
+You should be concise, direct, and to the point. When you run a non-trivial bash command, you should explain what the command does and why you are running it, to make sure the user understands what you are doing (this is especially important when you are running a command that will make changes to the user's system).
+Remember that your output will be displayed on a command line interface. Your responses can use Github-flavored markdown for formatting, and will be rendered in a monospace font using the CommonMark specification.
+Output text to communicate with the user; all text you output outside of tool use is displayed to the user. Only use tools to complete tasks. Never use tools like Bash or code comments as means to communicate with the user during the session.
+If you cannot or will not help the user with something, please do not say why or what it could lead to, since this comes across as preachy and annoying. Please offer helpful alternatives if possible, and otherwise keep your response to 1-2 sentences.
+IMPORTANT: You should minimize output tokens as much as possible while maintaining helpfulness, quality, and accuracy. Only address the specific query or task at hand, avoiding tangential information unless absolutely critical for completing the request. If you can answer in 1-3 sentences or a short paragraph, please do.
+IMPORTANT: You should NOT answer with unnecessary preamble or postamble (such as explaining your code or summarizing your action), unless the user asks you to.
+IMPORTANT: Keep your responses short, since they will be displayed on a command line interface. You MUST answer concisely with fewer than 4 lines (not including tool use or code generation), unless user asks for detail. Answer the user's question directly, without elaboration, explanation, or details. One word answers are best. Avoid introductions, conclusions, and explanations. You MUST avoid text before/after your response, such as "The answer is <answer>.", "Here is the content of the file..." or "Based on the information provided, the answer is..." or "Here is what I will do next...". Here are some examples to demonstrate appropriate verbosity:
+<example>
+user: 2 + 2
+assistant: 4
+</example>
+
+<example>
+user: what is 2+2?
+assistant: 4
+</example>
+
+<example>
+user: is 11 a prime number?
+assistant: yes
+</example>
+
+<example>
+user: what command should I run to list files in the current directory?
+assistant: ls
+</example>
+
+<example>
+user: what command should I run to watch files in the current directory?
+assistant: [use the ls tool to list the files in the current directory, then read docs/commands in the relevant file to find out how to watch files]
+npm run dev
+</example>
+
+<example>
+user: How many golf balls fit inside a jetta?
+assistant: 150000
+</example>
+
+<example>
+user: what files are in the directory src/?
+assistant: [runs ls and sees foo.c, bar.c, baz.c]
+user: which file contains the implementation of foo?
+assistant: src/foo.c
+</example>
+
+<example>
+user: write tests for new feature
+assistant: [uses grep and glob search tools to find where similar tests are defined, uses concurrent read file tool use blocks in one tool call to read relevant files at the same time, uses edit/patch file tool to write new tests]
+</example>
+
+# Proactiveness
+You are allowed to be proactive, but only when the user asks you to do something. You should strive to strike a balance between:
+1. Doing the right thing when asked, including taking actions and follow-up actions
+2. Not surprising the user with actions you take without asking
+For example, if the user asks you how to approach something, you should do your best to answer their question first, and not immediately jump into taking actions.
+3. Do not add additional code explanation summary unless requested by the user. After working on a file, just stop, rather than providing an explanation of what you did.
+
+# Following conventions
+When making changes to files, first understand the file's code conventions. Mimic code style, use existing libraries and utilities, and follow existing patterns.
+- NEVER assume that a given library is available, even if it is well known. Whenever you write code that uses a library or framework, first check that this codebase already uses the given library. For example, you might look at neighboring files, or check the package.json (or cargo.toml, and so on depending on the language).
+- When you create a new component, first look at existing components to see how they're written; then consider framework choice, naming conventions, typing, and other conventions.
+- When you edit a piece of code, first look at the code's surrounding context (especially its imports) to understand the code's choice of frameworks and libraries. Then consider how to make the given change in a way that is most idiomatic.
+- Always follow security best practices. Never introduce code that exposes or logs secrets and keys. Never commit secrets or keys to the repository.
+
+# Code style
+- Do not add comments to the code you write, unless the user asks you to, or the code is complex and requires additional context.
+
+# Doing tasks
+The user will primarily request you perform software engineering tasks. This includes solving bugs, adding new functionality, refactoring code, explaining code, and more. For these tasks the following steps are recommended:
+1. Use the available search tools to understand the codebase and the user's query. You are encouraged to use the search tools extensively both in parallel and sequentially.
+2. Implement the solution using all tools available to you
+3. Verify the solution if possible with tests. NEVER assume specific test framework or test script. Check the README or search codebase to determine the testing approach.
+4. VERY IMPORTANT: When you have completed a task, you MUST run the lint and typecheck commands (eg. npm run lint, npm run typecheck, ruff, etc.) if they were provided to you to ensure your code is correct. If you are unable to find the correct command, ask the user for the command to run and if they supply it, proactively suggest writing it to opencode.md so that you will know to run it next time.
+
+NEVER commit changes unless the user explicitly asks you to. It is VERY IMPORTANT to only commit when explicitly asked, otherwise the user will feel that you are being too proactive.
+
+# Tool usage policy
+- When doing file search, prefer to use the Agent tool in order to reduce context usage.
+- If you intend to call multiple tools and there are no dependencies between the calls, make all of the independent calls in the same function_calls block.
+- IMPORTANT: The user does not see the full output of the tool responses, so if you need the output of the tool for the response make sure to summarize it for the user.
+
+You MUST answer concisely with fewer than 4 lines of text (not including tool use or code generation), unless user asks for detail.

packages/opencode/src/session/prompt/summarize.txt

@@ -0,0 +1,10 @@
+You are a helpful AI assistant tasked with summarizing conversations.
+
+When asked to summarize, provide a detailed but concise summary of the conversation. 
+Focus on information that would be helpful for continuing the conversation, including:
+- What was done
+- What is currently being worked on
+- Which files are being modified
+- What needs to be done next
+
+Your summary should be comprehensive enough to provide context but concise enough to be quickly understood.

packages/opencode/src/session/prompt/title.txt

@@ -0,0 +1,7 @@
+you will generate a short title based on the first message a user begins a conversation with
+- ensure it is not more than 50 characters long
+- the title should be a summary of the user's message
+- it should be one line long
+- do not use quotes or colons
+- the entire text you return will be used as the title
+- never return anything that is more than one sentence (one line) long

packages/opencode/src/session/session.ts

@@ -0,0 +1,533 @@
+import path from "path"
+import { App } from "../app/app"
+import { Identifier } from "../id/id"
+import { Storage } from "../storage/storage"
+import { Log } from "../util/log"
+import {
+  convertToModelMessages,
+  generateText,
+  stepCountIs,
+  streamText,
+  tool,
+  type Tool as AITool,
+  type LanguageModelUsage,
+} from "ai"
+import { z, ZodSchema } from "zod"
+import { Decimal } from "decimal.js"
+
+import PROMPT_ANTHROPIC from "./prompt/anthropic.txt"
+import PROMPT_TITLE from "./prompt/title.txt"
+import PROMPT_SUMMARIZE from "./prompt/summarize.txt"
+
+import { Share } from "../share/share"
+import { Message } from "./message"
+import { Bus } from "../bus"
+import { Provider } from "../provider/provider"
+
+export namespace Session {
+  const log = Log.create({ service: "session" })
+
+  export const Info = z
+    .object({
+      id: Identifier.schema("session"),
+      share: z
+        .object({
+          secret: z.string(),
+          url: z.string(),
+        })
+        .optional(),
+      title: z.string(),
+      time: z.object({
+        created: z.number(),
+        updated: z.number(),
+      }),
+    })
+    .openapi({
+      ref: "session.info",
+    })
+  export type Info = z.output<typeof Info>
+
+  export const Event = {
+    Updated: Bus.event(
+      "session.updated",
+      z.object({
+        info: Info,
+      }),
+    ),
+  }
+
+  const state = App.state("session", () => {
+    const sessions = new Map<string, Info>()
+    const messages = new Map<string, Message.Info[]>()
+
+    return {
+      sessions,
+      messages,
+    }
+  })
+
+  export async function create() {
+    const result: Info = {
+      id: Identifier.descending("session"),
+      title: "New Session - " + new Date().toISOString(),
+      time: {
+        created: Date.now(),
+        updated: Date.now(),
+      },
+    }
+    log.info("created", result)
+    state().sessions.set(result.id, result)
+    await Storage.writeJSON("session/info/" + result.id, result)
+    share(result.id).then((share) => {
+      update(result.id, (draft) => {
+        draft.share = share
+      })
+    })
+    Bus.publish(Event.Updated, {
+      info: result,
+    })
+    return result
+  }
+
+  export async function get(id: string) {
+    const result = state().sessions.get(id)
+    if (result) {
+      return result
+    }
+    const read = await Storage.readJSON<Info>("session/info/" + id)
+    state().sessions.set(id, read)
+    return read as Info
+  }
+
+  export async function share(id: string) {
+    const session = await get(id)
+    if (session.share) return session.share
+    const share = await Share.create(id)
+    await update(id, (draft) => {
+      draft.share = share
+    })
+    for (const msg of await messages(id)) {
+      await Share.sync("session/message/" + id + "/" + msg.id, msg)
+    }
+    return share
+  }
+
+  export async function update(id: string, editor: (session: Info) => void) {
+    const { sessions } = state()
+    const session = await get(id)
+    if (!session) return
+    editor(session)
+    session.time.updated = Date.now()
+    sessions.set(id, session)
+    await Storage.writeJSON("session/info/" + id, session)
+    Bus.publish(Event.Updated, {
+      info: session,
+    })
+    return session
+  }
+
+  export async function messages(sessionID: string) {
+    const result = [] as Message.Info[]
+    const list = Storage.list("session/message/" + sessionID)
+    for await (const p of list) {
+      const read = await Storage.readJSON<Message.Info>(p).catch(() => {})
+      if (!read) continue
+      result.push(read)
+    }
+    result.sort((a, b) => (a.id > b.id ? 1 : -1))
+    return result
+  }
+
+  export async function* list() {
+    for await (const item of Storage.list("session/info")) {
+      const sessionID = path.basename(item, ".json")
+      yield get(sessionID)
+    }
+  }
+
+  export function abort(sessionID: string) {
+    const controller = pending.get(sessionID)
+    if (!controller) return false
+    controller.abort()
+    pending.delete(sessionID)
+    return true
+  }
+
+  async function updateMessage(msg: Message.Info) {
+    await Storage.writeJSON(
+      "session/message/" + msg.metadata.sessionID + "/" + msg.id,
+      msg,
+    )
+    Bus.publish(Message.Event.Updated, {
+      info: msg,
+    })
+  }
+
+  export async function chat(input: {
+    sessionID: string
+    providerID: string
+    modelID: string
+    parts: Message.Part[]
+  }) {
+    const l = log.clone().tag("session", input.sessionID)
+    l.info("chatting")
+    const model = await Provider.getModel(input.providerID, input.modelID)
+    let msgs = await messages(input.sessionID)
+    const previous = msgs.at(-1)
+    if (previous?.metadata.assistant) {
+      const tokens =
+        previous.metadata.assistant.tokens.input +
+        previous.metadata.assistant.tokens.output
+      if (
+        tokens >
+        (model.info.contextWindow - (model.info.maxOutputTokens ?? 0)) * 0.9
+      ) {
+        await summarize({
+          sessionID: input.sessionID,
+          providerID: input.providerID,
+          modelID: input.modelID,
+        })
+        return chat(input)
+      }
+    }
+
+    using abort = lock(input.sessionID)
+
+    const lastSummary = msgs.findLast(
+      (msg) => msg.metadata.assistant?.summary === true,
+    )
+    if (lastSummary)
+      msgs = msgs.filter(
+        (msg) => msg.role === "system" || msg.id >= lastSummary.id,
+      )
+
+    const app = await App.use()
+    if (msgs.length === 0) {
+      const system: Message.Info = {
+        id: Identifier.ascending("message"),
+        role: "system",
+        parts: [
+          {
+            type: "text",
+            text: PROMPT_ANTHROPIC,
+          },
+        ],
+        metadata: {
+          sessionID: input.sessionID,
+          time: {
+            created: Date.now(),
+          },
+          tool: {},
+        },
+      }
+      const contextFile = Bun.file(path.join(app.root, "CONTEXT.md"))
+      if (await contextFile.exists()) {
+        const context = await contextFile.text()
+        system.parts.push({
+          type: "text",
+          text: context,
+        })
+      }
+      msgs.push(system)
+      generateText({
+        messages: convertToModelMessages([
+          {
+            role: "system",
+            parts: [
+              {
+                type: "text",
+                text: PROMPT_TITLE,
+              },
+            ],
+          },
+          {
+            role: "user",
+            parts: input.parts,
+          },
+        ]),
+        model: model.language,
+      }).then((result) => {
+        return Session.update(input.sessionID, (draft) => {
+          draft.title = result.text
+        })
+      })
+      await updateMessage(system)
+    }
+    const msg: Message.Info = {
+      role: "user",
+      id: Identifier.ascending("message"),
+      parts: input.parts,
+      metadata: {
+        time: {
+          created: Date.now(),
+        },
+        sessionID: input.sessionID,
+        tool: {},
+      },
+    }
+    await updateMessage(msg)
+    msgs.push(msg)
+
+    const next: Message.Info = {
+      id: Identifier.ascending("message"),
+      role: "assistant",
+      parts: [],
+      metadata: {
+        assistant: {
+          cost: 0,
+          tokens: {
+            input: 0,
+            output: 0,
+            reasoning: 0,
+          },
+          modelID: input.modelID,
+          providerID: input.providerID,
+        },
+        time: {
+          created: Date.now(),
+        },
+        sessionID: input.sessionID,
+        tool: {},
+      },
+    }
+    await updateMessage(next)
+    const tools: Record<string, AITool> = {}
+    for (const item of await Provider.tools(input.providerID)) {
+      tools[item.id.replaceAll(".", "_")] = tool({
+        id: item.id as any,
+        description: item.description,
+        parameters: item.parameters as ZodSchema,
+        async execute(args, opts) {
+          const start = Date.now()
+          try {
+            const result = await item.execute(args)
+            next.metadata!.tool![opts.toolCallId] = {
+              ...result.metadata,
+              time: {
+                start,
+                end: Date.now(),
+              },
+            }
+            return result.output
+          } catch (e: any) {
+            next.metadata!.tool![opts.toolCallId] = {
+              error: true,
+              message: e.toString(),
+              time: {
+                start,
+                end: Date.now(),
+              },
+            }
+            return e.toString()
+          }
+        },
+      })
+    }
+    const result = streamText({
+      onStepFinish: async (step) => {
+        const assistant = next.metadata!.assistant!
+        const usage = getUsage(step.usage, model.info)
+        assistant.cost = usage.cost
+        assistant.tokens = usage.tokens
+        await updateMessage(next)
+      },
+      abortSignal: abort.signal,
+      maxRetries: 6,
+      stopWhen: stepCountIs(1000),
+      messages: convertToModelMessages(msgs),
+      temperature: 0,
+      tools,
+      model: model.language,
+    })
+    let text: Message.TextPart | undefined
+    const reader = result.toUIMessageStream().getReader()
+    while (true) {
+      const result = await reader.read().catch((e) => {
+        if (e instanceof DOMException && e.name === "AbortError") {
+          return
+        }
+        throw e
+      })
+      if (!result) break
+      const { done, value } = result
+      if (done) break
+      l.info("part", {
+        type: value.type,
+      })
+      switch (value.type) {
+        case "start":
+          break
+        case "start-step":
+          text = undefined
+          next.parts.push({
+            type: "step-start",
+          })
+          break
+        case "text":
+          if (!text) {
+            text = value
+            next.parts.push(value)
+            break
+          }
+          text.text += value.text
+          break
+
+        case "tool-call":
+          next.parts.push({
+            type: "tool-invocation",
+            toolInvocation: {
+              state: "call",
+              ...value,
+              // hack until zod v4
+              args: value.args as any,
+            },
+          })
+          break
+
+        case "tool-result":
+          const match = next.parts.find(
+            (p) =>
+              p.type === "tool-invocation" &&
+              p.toolInvocation.toolCallId === value.toolCallId,
+          )
+          if (match && match.type === "tool-invocation") {
+            match.toolInvocation = {
+              args: match.toolInvocation.args,
+              toolCallId: match.toolInvocation.toolCallId,
+              toolName: match.toolInvocation.toolName,
+              state: "result",
+              result: value.result as string,
+            }
+          }
+          break
+
+        case "finish":
+          break
+        case "finish-step":
+          break
+        case "error":
+          log.error("error", value)
+          break
+
+        default:
+          l.info("unhandled", {
+            type: value.type,
+          })
+      }
+      await updateMessage(next)
+    }
+    next.metadata!.time.completed = Date.now()
+    await updateMessage(next)
+    return next
+  }
+
+  export async function summarize(input: {
+    sessionID: string
+    providerID: string
+    modelID: string
+  }) {
+    using abort = lock(input.sessionID)
+    const msgs = await messages(input.sessionID)
+    const lastSummary = msgs.findLast(
+      (msg) => msg.metadata.assistant?.summary === true,
+    )?.id
+    const filtered = msgs.filter(
+      (msg) => msg.role !== "system" && (!lastSummary || msg.id >= lastSummary),
+    )
+    const model = await Provider.getModel(input.providerID, input.modelID)
+    const next: Message.Info = {
+      id: Identifier.ascending("message"),
+      role: "assistant",
+      parts: [],
+      metadata: {
+        tool: {},
+        sessionID: input.sessionID,
+        assistant: {
+          summary: true,
+          cost: 0,
+          modelID: input.modelID,
+          providerID: input.providerID,
+          tokens: {
+            input: 0,
+            output: 0,
+            reasoning: 0,
+          },
+        },
+        time: {
+          created: Date.now(),
+        },
+      },
+    }
+    await updateMessage(next)
+    const result = await generateText({
+      abortSignal: abort.signal,
+      model: model.language,
+      messages: convertToModelMessages([
+        {
+          role: "system",
+          parts: [
+            {
+              type: "text",
+              text: PROMPT_SUMMARIZE,
+            },
+          ],
+        },
+        ...filtered,
+        {
+          role: "user",
+          parts: [
+            {
+              type: "text",
+              text: "Provide a detailed but concise summary of our conversation above. Focus on information that would be helpful for continuing the conversation, including what we did, what we're doing, which files we're working on, and what we're going to do next.",
+            },
+          ],
+        },
+      ]),
+    })
+    next.parts.push({
+      type: "text",
+      text: result.text,
+    })
+    const assistant = next.metadata!.assistant!
+    const usage = getUsage(result.usage, model.info)
+    assistant.cost = usage.cost
+    assistant.tokens = usage.tokens
+    await updateMessage(next)
+  }
+
+  const pending = new Map<string, AbortController>()
+  function lock(sessionID: string) {
+    log.info("locking", { sessionID })
+    if (pending.has(sessionID)) throw new BusyError(sessionID)
+    const controller = new AbortController()
+    pending.set(sessionID, controller)
+    return {
+      signal: controller.signal,
+      [Symbol.dispose]() {
+        log.info("unlocking", { sessionID })
+        pending.delete(sessionID)
+      },
+    }
+  }
+
+  function getUsage(usage: LanguageModelUsage, model: Provider.Model) {
+    const tokens = {
+      input: usage.inputTokens ?? 0,
+      output: usage.outputTokens ?? 0,
+      reasoning: usage.reasoningTokens ?? 0,
+    }
+    return {
+      cost: new Decimal(0)
+        .add(new Decimal(tokens.input).mul(model.cost.input))
+        .add(new Decimal(tokens.output).mul(model.cost.output))
+        .toNumber(),
+      tokens,
+    }
+  }
+
+  export class BusyError extends Error {
+    constructor(public readonly sessionID: string) {
+      super(`Session ${sessionID} is busy`)
+    }
+  }
+}

packages/opencode/src/share/share.ts

@@ -0,0 +1,68 @@
+import { App } from "../app/app"
+import { Bus } from "../bus"
+import { Session } from "../session/session"
+import { Storage } from "../storage/storage"
+import { Log } from "../util/log"
+
+export namespace Share {
+  const log = Log.create({ service: "share" })
+
+  let queue: Promise<void> = Promise.resolve()
+  const pending = new Map<string, any>()
+
+  const state = App.state("share", async () => {
+    Bus.subscribe(Storage.Event.Write, async (payload) => {
+      await sync(payload.properties.key, payload.properties.content)
+    })
+  })
+
+  export async function sync(key: string, content: any) {
+    const [root, ...splits] = key.split("/")
+    if (root !== "session") return
+    const [, sessionID] = splits
+    const session = await Session.get(sessionID)
+    if (!session.share) return
+    const { secret } = session.share
+    pending.set(key, content)
+    queue = queue
+      .then(async () => {
+        const content = pending.get(key)
+        if (content === undefined) return
+        pending.delete(key)
+
+        return fetch(`${URL}/share_sync`, {
+          method: "POST",
+          body: JSON.stringify({
+            sessionID: sessionID,
+            secret,
+            key: key,
+            content,
+          }),
+        })
+      })
+      .then((x) => {
+        if (x) {
+          log.info("synced", {
+            key: key,
+            status: x.status,
+          })
+        }
+      })
+  }
+
+  export async function init() {
+    await state()
+  }
+
+  export const URL =
+    process.env["OPENCODE_API"] ?? "https://api.dev.opencode.ai"
+
+  export async function create(sessionID: string) {
+    return fetch(`${URL}/share_create`, {
+      method: "POST",
+      body: JSON.stringify({ sessionID: sessionID }),
+    })
+      .then((x) => x.json())
+      .then((x) => x as { url: string; secret: string })
+  }
+}

packages/opencode/src/storage/storage.ts

@@ -0,0 +1,55 @@
+import { FileStorage } from "@flystorage/file-storage"
+import { LocalStorageAdapter } from "@flystorage/local-fs"
+import fs from "fs/promises"
+import { Log } from "../util/log"
+import { App } from "../app/app"
+import { AppPath } from "../app/path"
+import { Bus } from "../bus"
+import z from "zod"
+
+export namespace Storage {
+  const log = Log.create({ service: "storage" })
+
+  export const Event = {
+    Write: Bus.event(
+      "storage.write",
+      z.object({ key: z.string(), content: z.any() }),
+    ),
+  }
+
+  const state = App.state("storage", async () => {
+    const app = await App.use()
+    const storageDir = AppPath.storage(app.root)
+    await fs.mkdir(storageDir, { recursive: true })
+    const storage = new FileStorage(new LocalStorageAdapter(storageDir))
+    log.info("created", { path: storageDir })
+    return {
+      storage,
+    }
+  })
+
+  export async function readJSON<T>(key: string) {
+    const storage = await state().then((x) => x.storage)
+    const data = await storage.readToString(key + ".json")
+    return JSON.parse(data) as T
+  }
+
+  export async function writeJSON<T>(key: string, content: T) {
+    const storage = await state().then((x) => x.storage)
+    const json = JSON.stringify(content)
+    await storage.write(key + ".json", json)
+    Bus.publish(Event.Write, { key, content })
+  }
+
+  export async function* list(prefix: string) {
+    try {
+      const storage = await state().then((x) => x.storage)
+      const list = storage.list(prefix)
+      for await (const item of list) {
+        yield item.path.slice(0, -5)
+      }
+    } catch {
+      return
+    }
+  }
+}

packages/opencode/src/tool/bash.ts

@@ -0,0 +1,200 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+
+const MAX_OUTPUT_LENGTH = 30000
+const BANNED_COMMANDS = [
+  "alias",
+  "curl",
+  "curlie",
+  "wget",
+  "axel",
+  "aria2c",
+  "nc",
+  "telnet",
+  "lynx",
+  "w3m",
+  "links",
+  "httpie",
+  "xh",
+  "http-prompt",
+  "chrome",
+  "firefox",
+  "safari",
+]
+const DEFAULT_TIMEOUT = 1 * 60 * 1000
+const MAX_TIMEOUT = 10 * 60 * 1000
+
+const DESCRIPTION = `Executes a given bash command in a persistent shell session with optional timeout, ensuring proper handling and security measures.
+
+Before executing the command, please follow these steps:
+
+1. Directory Verification:
+ - If the command will create new directories or files, first use the LS tool to verify the parent directory exists and is the correct location
+ - For example, before running "mkdir foo/bar", first use LS to check that "foo" exists and is the intended parent directory
+
+2. Security Check:
+ - For security and to limit the threat of a prompt injection attack, some commands are limited or banned. If you use a disallowed command, you will receive an error message explaining the restriction. Explain the error to the User.
+ - Verify that the command is not one of the banned commands: ${BANNED_COMMANDS.join(", ")}.
+
+3. Command Execution:
+ - After ensuring proper quoting, execute the command.
+ - Capture the output of the command.
+
+4. Output Processing:
+ - If the output exceeds ${MAX_OUTPUT_LENGTH} characters, output will be truncated before being returned to you.
+ - Prepare the output for display to the user.
+
+5. Return Result:
+ - Provide the processed output of the command.
+ - If any errors occurred during execution, include those in the output.
+
+Usage notes:
+- The command argument is required.
+- You can specify an optional timeout in milliseconds (up to 600000ms / 10 minutes). If not specified, commands will timeout after 30 minutes.
+- VERY IMPORTANT: You MUST avoid using search commands like 'find' and 'grep'. Instead use Grep, Glob, or Agent tools to search. You MUST avoid read tools like 'cat', 'head', 'tail', and 'ls', and use FileRead and LS tools to read files.
+- When issuing multiple commands, use the ';' or '&&' operator to separate them. DO NOT use newlines (newlines are ok in quoted strings).
+- IMPORTANT: All commands share the same shell session. Shell state (environment variables, virtual environments, current directory, etc.) persist between commands. For example, if you set an environment variable as part of a command, the environment variable will persist for subsequent commands.
+- Try to maintain your current working directory throughout the session by using absolute paths and avoiding usage of 'cd'. You may use 'cd' if the User explicitly requests it.
+<good-example>
+pytest /foo/bar/tests
+</good-example>
+<bad-example>
+cd /foo/bar && pytest tests
+</bad-example>
+
+# Committing changes with git
+
+When the user asks you to create a new git commit, follow these steps carefully:
+
+1. Start with a single message that contains exactly three tool_use blocks that do the following (it is VERY IMPORTANT that you send these tool_use blocks in a single message, otherwise it will feel slow to the user!):
+ - Run a git status command to see all untracked files.
+ - Run a git diff command to see both staged and unstaged changes that will be committed.
+ - Run a git log command to see recent commit messages, so that you can follow this repository's commit message style.
+
+2. Use the git context at the start of this conversation to determine which files are relevant to your commit. Add relevant untracked files to the staging area. Do not commit files that were already modified at the start of this conversation, if they are not relevant to your commit.
+
+3. Analyze all staged changes (both previously staged and newly added) and draft a commit message. Wrap your analysis process in <commit_analysis> tags:
+
+<commit_analysis>
+- List the files that have been changed or added
+- Summarize the nature of the changes (eg. new feature, enhancement to an existing feature, bug fix, refactoring, test, docs, etc.)
+- Brainstorm the purpose or motivation behind these changes
+- Do not use tools to explore code, beyond what is available in the git context
+- Assess the impact of these changes on the overall project
+- Check for any sensitive information that shouldn't be committed
+- Draft a concise (1-2 sentences) commit message that focuses on the "why" rather than the "what"
+- Ensure your language is clear, concise, and to the point
+- Ensure the message accurately reflects the changes and their purpose (i.e. "add" means a wholly new feature, "update" means an enhancement to an existing feature, "fix" means a bug fix, etc.)
+- Ensure the message is not generic (avoid words like "Update" or "Fix" without context)
+- Review the draft message to ensure it accurately reflects the changes and their purpose
+</commit_analysis>
+
+4. Create the commit with a message ending with:
+🤖 Generated with opencode
+Co-Authored-By: opencode <noreply@opencode.ai>
+
+- In order to ensure good formatting, ALWAYS pass the commit message via a HEREDOC, a la this example:
+<example>
+git commit -m "$(cat <<'EOF'
+ Commit message here.
+
+ 🤖 Generated with opencode
+ Co-Authored-By: opencode <noreply@opencode.ai>
+ EOF
+ )"
+</example>
+
+5. If the commit fails due to pre-commit hook changes, retry the commit ONCE to include these automated changes. If it fails again, it usually means a pre-commit hook is preventing the commit. If the commit succeeds but you notice that files were modified by the pre-commit hook, you MUST amend your commit to include them.
+
+6. Finally, run git status to make sure the commit succeeded.
+
+Important notes:
+- When possible, combine the "git add" and "git commit" commands into a single "git commit -am" command, to speed things up
+- However, be careful not to stage files (e.g. with 'git add .') for commits that aren't part of the change, they may have untracked files they want to keep around, but not commit.
+- NEVER update the git config
+- DO NOT push to the remote repository
+- IMPORTANT: Never use git commands with the -i flag (like git rebase -i or git add -i) since they require interactive input which is not supported.
+- If there are no changes to commit (i.e., no untracked files and no modifications), do not create an empty commit
+- Ensure your commit message is meaningful and concise. It should explain the purpose of the changes, not just describe them.
+- Return an empty response - the user will see the git output directly
+
+# Creating pull requests
+Use the gh command via the Bash tool for ALL GitHub-related tasks including working with issues, pull requests, checks, and releases. If given a Github URL use the gh command to get the information needed.
+
+IMPORTANT: When the user asks you to create a pull request, follow these steps carefully:
+
+1. Understand the current state of the branch. Remember to send a single message that contains multiple tool_use blocks (it is VERY IMPORTANT that you do this in a single message, otherwise it will feel slow to the user!):
+ - Run a git status command to see all untracked files.
+ - Run a git diff command to see both staged and unstaged changes that will be committed.
+ - Check if the current branch tracks a remote branch and is up to date with the remote, so you know if you need to push to the remote
+ - Run a git log command and 'git diff main...HEAD' to understand the full commit history for the current branch (from the time it diverged from the 'main' branch.)
+
+2. Create new branch if needed
+
+3. Commit changes if needed
+
+4. Push to remote with -u flag if needed
+
+5. Analyze all changes that will be included in the pull request, making sure to look at all relevant commits (not just the latest commit, but all commits that will be included in the pull request!), and draft a pull request summary. Wrap your analysis process in <pr_analysis> tags:
+
+<pr_analysis>
+- List the commits since diverging from the main branch
+- Summarize the nature of the changes (eg. new feature, enhancement to an existing feature, bug fix, refactoring, test, docs, etc.)
+- Brainstorm the purpose or motivation behind these changes
+- Assess the impact of these changes on the overall project
+- Do not use tools to explore code, beyond what is available in the git context
+- Check for any sensitive information that shouldn't be committed
+- Draft a concise (1-2 bullet points) pull request summary that focuses on the "why" rather than the "what"
+- Ensure the summary accurately reflects all changes since diverging from the main branch
+- Ensure your language is clear, concise, and to the point
+- Ensure the summary accurately reflects the changes and their purpose (ie. "add" means a wholly new feature, "update" means an enhancement to an existing feature, "fix" means a bug fix, etc.)
+- Ensure the summary is not generic (avoid words like "Update" or "Fix" without context)
+- Review the draft summary to ensure it accurately reflects the changes and their purpose
+</pr_analysis>
+
+6. Create PR using gh pr create with the format below. Use a HEREDOC to pass the body to ensure correct formatting.
+<example>
+gh pr create --title "the pr title" --body "$(cat <<'EOF'
+## Summary
+<1-3 bullet points>
+
+## Test plan
+[Checklist of TODOs for testing the pull request...]
+
+🤖 Generated with opencode
+EOF
+)"
+</example>
+
+Important:
+- Return an empty response - the user will see the gh output directly
+- Never update git config`
+
+export const BashTool = Tool.define({
+  id: "opencode.bash",
+  description: DESCRIPTION,
+  parameters: z.object({
+    command: z.string(),
+    timeout: z
+      .number()
+      .min(0)
+      .max(MAX_TIMEOUT)
+      .describe("Optional timeout in milliseconds")
+      .optional(),
+  }),
+  async execute(params) {
+    const timeout = Math.min(params.timeout ?? DEFAULT_TIMEOUT, MAX_TIMEOUT)
+    if (BANNED_COMMANDS.some((item) => params.command.startsWith(item)))
+      throw new Error(`Command '${params.command}' is not allowed`)
+
+    const process = Bun.spawnSync({
+      cmd: ["bash", "-c", params.command],
+      maxBuffer: MAX_OUTPUT_LENGTH,
+      timeout: timeout,
+    })
+    return {
+      metadata: {},
+      output: process.stdout.toString("utf-8"),
+    }
+  },
+})

packages/opencode/src/tool/edit.ts

@@ -0,0 +1,143 @@
+import { z } from "zod"
+import * as path from "path"
+import { Tool } from "./tool"
+import { FileTimes } from "./util/file-times"
+import { LSP } from "../lsp"
+import { diffLines } from "diff"
+
+const DESCRIPTION = `Edits files by replacing text, creating new files, or deleting content. For moving or renaming files, use the Bash tool with the 'mv' command instead. For larger file edits, use the FileWrite tool to overwrite files.
+
+Before using this tool:
+
+1. Use the FileRead tool to understand the file's contents and context
+
+2. Verify the directory path is correct (only applicable when creating new files):
+   - Use the LS tool to verify the parent directory exists and is the correct location
+
+To make a file edit, provide the following:
+1. file_path: The relative path to the file to modify (must be relative, not absolute)
+2. old_string: The text to replace (must be unique within the file, and must match the file contents exactly, including all whitespace and indentation)
+3. new_string: The edited text to replace the old_string
+
+Special cases:
+- To create a new file: provide file_path and new_string, leave old_string empty
+- To delete content: provide file_path and old_string, leave new_string empty
+
+The tool will replace ONE occurrence of old_string with new_string in the specified file.
+
+CRITICAL REQUIREMENTS FOR USING THIS TOOL:
+
+1. UNIQUENESS: The old_string MUST uniquely identify the specific instance you want to change. This means:
+   - Include AT LEAST 3-5 lines of context BEFORE the change point
+   - Include AT LEAST 3-5 lines of context AFTER the change point
+   - Include all whitespace, indentation, and surrounding code exactly as it appears in the file
+
+2. SINGLE INSTANCE: This tool can only change ONE instance at a time. If you need to change multiple instances:
+   - Make separate calls to this tool for each instance
+   - Each call must uniquely identify its specific instance using extensive context
+
+3. VERIFICATION: Before using this tool:
+   - Check how many instances of the target text exist in the file
+   - If multiple instances exist, gather enough context to uniquely identify each one
+   - Plan separate tool calls for each instance
+
+WARNING: If you do not follow these requirements:
+   - The tool will fail if old_string matches multiple locations
+   - The tool will fail if old_string doesn't match exactly (including whitespace)
+   - You may change the wrong instance if you don't include enough context
+
+When making edits:
+   - Ensure the edit results in idiomatic, correct code
+   - Do not leave the code in a broken state
+   - Always use relative file paths 
+
+Remember: when making multiple file edits in a row to the same file, you should prefer to send all edits in a single message with multiple calls to this tool, rather than multiple messages with a single call each.`
+
+export const EditTool = Tool.define({
+  id: "opencode.edit",
+  description: DESCRIPTION,
+  parameters: z.object({
+    filePath: z.string().describe("The absolute path to the file to modify"),
+    oldString: z.string().describe("The text to replace"),
+    newString: z.string().describe("The text to replace it with"),
+  }),
+  async execute(params) {
+    if (!params.filePath) {
+      throw new Error("filePath is required")
+    }
+
+    let filePath = params.filePath
+    if (!path.isAbsolute(filePath)) {
+      filePath = path.join(process.cwd(), filePath)
+    }
+
+    let contentOld = ""
+    let contentNew = ""
+    await (async () => {
+      if (params.oldString === "") {
+        contentNew = params.newString
+        await Bun.write(filePath, params.newString)
+        return
+      }
+
+      const read = FileTimes.get(filePath)
+      if (!read)
+        throw new Error(
+          `You must read the file ${filePath} before editing it. Use the View tool first`,
+        )
+      const file = Bun.file(filePath)
+      if (!(await file.exists())) throw new Error(`File ${filePath} not found`)
+      const stats = await file.stat()
+      if (stats.isDirectory())
+        throw new Error(`Path is a directory, not a file: ${filePath}`)
+      if (stats.mtime.getTime() > read.getTime())
+        throw new Error(
+          `File ${filePath} has been modified since it was last read.\nLast modification: ${read.toISOString()}\nLast read: ${stats.mtime.toISOString()}\n\nPlease read the file again before modifying it.`,
+        )
+
+      contentOld = await file.text()
+      const index = contentOld.indexOf(params.oldString)
+      if (index === -1)
+        throw new Error(
+          `oldString not found in file. Make sure it matches exactly, including whitespace and line breaks`,
+        )
+      const lastIndex = contentOld.lastIndexOf(params.oldString)
+      if (index !== lastIndex)
+        throw new Error(
+          `oldString appears multiple times in the file. Please provide more context to ensure a unique match`,
+        )
+
+      contentNew =
+        contentOld.substring(0, index) +
+        params.newString +
+        contentOld.substring(index + params.oldString.length)
+
+      await file.write(contentNew)
+    })()
+
+    const changes = diffLines(contentOld, contentNew)
+
+    FileTimes.write(filePath)
+    FileTimes.read(filePath)
+
+    let output = ""
+    await LSP.file(filePath)
+    const diagnostics = await LSP.diagnostics()
+    for (const [file, issues] of Object.entries(diagnostics)) {
+      if (issues.length === 0) continue
+      if (file === filePath) {
+        output += `\nThis file has errors, please fix\n<file_diagnostics>\n${issues.map(LSP.Diagnostic.pretty).join("\n")}\n</file_diagnostics>\n`
+        continue
+      }
+      output += `\n<project_diagnostics>\n${file}\n${issues.map(LSP.Diagnostic.pretty).join("\n")}\n</project_diagnostics>\n`
+    }
+
+    return {
+      metadata: {
+        diagnostics,
+        changes,
+      },
+      output,
+    }
+  },
+})

packages/opencode/src/tool/example.ts

@@ -0,0 +1,19 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+
+export const ExampleTool = Tool.define({
+  id: "opencode.example",
+  description: "Example tool",
+  parameters: z.object({
+    foo: z.string().describe("The foo parameter"),
+    bar: z.number().describe("The bar parameter"),
+  }),
+  async execute(params) {
+    return {
+      metadata: {
+        lol: "hey",
+      },
+      output: "Hello, world!",
+    }
+  },
+})

packages/opencode/src/tool/fetch.ts

@@ -0,0 +1,133 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+import TurndownService from "turndown"
+
+const MAX_RESPONSE_SIZE = 5 * 1024 * 1024 // 5MB
+const DEFAULT_TIMEOUT = 30 * 1000 // 30 seconds
+const MAX_TIMEOUT = 120 * 1000 // 2 minutes
+
+const DESCRIPTION = `Fetches content from a URL and returns it in the specified format.
+
+WHEN TO USE THIS TOOL:
+- Use when you need to download content from a URL
+- Helpful for retrieving documentation, API responses, or web content
+- Useful for getting external information to assist with tasks
+
+HOW TO USE:
+- Provide the URL to fetch content from
+- Specify the desired output format (text, markdown, or html)
+- Optionally set a timeout for the request
+
+FEATURES:
+- Supports three output formats: text, markdown, and html
+- Automatically handles HTTP redirects
+- Sets reasonable timeouts to prevent hanging
+- Validates input parameters before making requests
+
+LIMITATIONS:
+- Maximum response size is 5MB
+- Only supports HTTP and HTTPS protocols
+- Cannot handle authentication or cookies
+- Some websites may block automated requests
+
+TIPS:
+- Use text format for plain text content or simple API responses
+- Use markdown format for content that should be rendered with formatting
+- Use html format when you need the raw HTML structure
+- Set appropriate timeouts for potentially slow websites`
+
+export const FetchTool = Tool.define({
+  id: "opencode.fetch",
+  description: DESCRIPTION,
+  parameters: z.object({
+    url: z.string().describe("The URL to fetch content from"),
+    format: z
+      .enum(["text", "markdown", "html"])
+      .describe(
+        "The format to return the content in (text, markdown, or html)",
+      ),
+    timeout: z
+      .number()
+      .min(0)
+      .max(MAX_TIMEOUT / 1000)
+      .describe("Optional timeout in seconds (max 120)")
+      .optional(),
+  }),
+  async execute(param) {
+    // Validate URL
+    if (
+      !params.url.startsWith("http://") &&
+      !params.url.startsWith("https://")
+    ) {
+      throw new Error("URL must start with http:// or https://")
+    }
+
+    const timeout = Math.min(
+      (params.timeout ?? DEFAULT_TIMEOUT / 1000) * 1000,
+      MAX_TIMEOUT,
+    )
+
+    const controller = new AbortController()
+    const timeoutId = setTimeout(() => controller.abort(), timeout)
+
+    const response = await fetch(params.url, {
+      signal: controller.signal,
+      headers: {
+        "User-Agent": "opencode/1.0",
+      },
+    })
+
+    clearTimeout(timeoutId)
+
+    if (!response.ok) {
+      throw new Error(`Request failed with status code: ${response.status}`)
+    }
+
+    // Check content length
+    const contentLength = response.headers.get("content-length")
+    if (contentLength && parseInt(contentLength) > MAX_RESPONSE_SIZE) {
+      throw new Error("Response too large (exceeds 5MB limit)")
+    }
+
+    const arrayBuffer = await response.arrayBuffer()
+    if (arrayBuffer.byteLength > MAX_RESPONSE_SIZE) {
+      throw new Error("Response too large (exceeds 5MB limit)")
+    }
+
+    const content = new TextDecoder().decode(arrayBuffer)
+    const contentType = response.headers.get("content-type") || ""
+
+    switch (params.format) {
+      case "text":
+        if (contentType.includes("text/html")) {
+          const text = extractTextFromHTML(content)
+          return { output: text, metadata: {} }
+        }
+        return { output: content, metadata: {} }
+
+      case "markdown":
+        if (contentType.includes("text/html")) {
+          const markdown = convertHTMLToMarkdown(content)
+          return { output: markdown, metadata: {} }
+        }
+        return { output: "```\n" + content + "\n```" }
+
+      case "html":
+        return { output: content, metadata: {} }
+
+      default:
+        return { output: content, metadata: {} }
+    }
+  },
+})
+
+function extractTextFromHTML(html: string): string {
+  const doc = new DOMParser().parseFromString(html, "text/html")
+  const text = doc.body.textContent || doc.body.innerText || ""
+  return text.replace(/\s+/g, " ").trim()
+}
+
+function convertHTMLToMarkdown(html: string): string {
+  const turndownService = new TurndownService()
+  return turndownService.turndown(html)
+}

packages/opencode/src/tool/glob.ts

@@ -0,0 +1,95 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+import { App } from "../app/app"
+
+const DESCRIPTION = `Fast file pattern matching tool that finds files by name and pattern, returning matching paths sorted by modification time (newest first).
+
+WHEN TO USE THIS TOOL:
+- Use when you need to find files by name patterns or extensions
+- Great for finding specific file types across a directory structure
+- Useful for discovering files that match certain naming conventions
+
+HOW TO USE:
+- Provide a glob pattern to match against file paths
+- Optionally specify a starting directory (defaults to current working directory)
+- Results are sorted with most recently modified files first
+
+GLOB PATTERN SYNTAX:
+- '*' matches any sequence of non-separator characters
+- '**' matches any sequence of characters, including separators
+- '?' matches any single non-separator character
+- '[...]' matches any character in the brackets
+- '[!...]' matches any character not in the brackets
+
+COMMON PATTERN EXAMPLES:
+- '*.js' - Find all JavaScript files in the current directory
+- '**/*.js' - Find all JavaScript files in any subdirectory
+- 'src/**/*.{ts,tsx}' - Find all TypeScript files in the src directory
+- '*.{html,css,js}' - Find all HTML, CSS, and JS files
+
+LIMITATIONS:
+- Results are limited to 100 files (newest first)
+- Does not search file contents (use Grep tool for that)
+- Hidden files (starting with '.') are skipped
+
+TIPS:
+- For the most useful results, combine with the Grep tool: first find files with Glob, then search their contents with Grep
+- When doing iterative exploration that may require multiple rounds of searching, consider using the Agent tool instead
+- Always check if results are truncated and refine your search pattern if needed`
+
+export const GlobTool = Tool.define({
+  id: "opencode.glob",
+  description: DESCRIPTION,
+  parameters: z.object({
+    pattern: z.string().describe("The glob pattern to match files against"),
+    path: z
+      .string()
+      .describe(
+        "The directory to search in. Defaults to the current working directory.",
+      )
+      .optional(),
+  }),
+  async execute(params) {
+    const app = await App.use()
+    const search = params.path || app.root
+    const limit = 100
+    const glob = new Bun.Glob(params.pattern)
+    const files = []
+    let truncated = false
+    for await (const file of glob.scan({ cwd: search })) {
+      if (files.length >= limit) {
+        truncated = true
+        break
+      }
+      const stats = await Bun.file(file)
+        .stat()
+        .then((x) => x.mtime.getTime())
+        .catch(() => 0)
+      files.push({
+        path: file,
+        mtime: stats,
+      })
+    }
+    files.sort((a, b) => b.mtime - a.mtime)
+
+    const output = []
+    if (files.length === 0) output.push("No files found")
+    if (files.length > 0) {
+      output.push(...files.map((f) => f.path))
+      if (truncated) {
+        output.push("")
+        output.push(
+          "(Results are truncated. Consider using a more specific path or pattern.)",
+        )
+      }
+    }
+
+    return {
+      metadata: {
+        count: files.length,
+        truncated,
+      },
+      output: output.join("\n"),
+    }
+  },
+})

packages/opencode/src/tool/grep.ts

@@ -0,0 +1,344 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+import { App } from "../app/app"
+import { spawn } from "child_process"
+import { promises as fs } from "fs"
+import path from "path"
+
+const DESCRIPTION = `Fast content search tool that finds files containing specific text or patterns, returning matching file paths sorted by modification time (newest first).
+
+WHEN TO USE THIS TOOL:
+- Use when you need to find files containing specific text or patterns
+- Great for searching code bases for function names, variable declarations, or error messages
+- Useful for finding all files that use a particular API or pattern
+
+HOW TO USE:
+- Provide a regex pattern to search for within file contents
+- Set literal_text=true if you want to search for the exact text with special characters (recommended for non-regex users)
+- Optionally specify a starting directory (defaults to current working directory)
+- Optionally provide an include pattern to filter which files to search
+- Results are sorted with most recently modified files first
+
+REGEX PATTERN SYNTAX (when literal_text=false):
+- Supports standard regular expression syntax
+- 'function' searches for the literal text "function"
+- 'log\\..*Error' finds text starting with "log." and ending with "Error"
+- 'import\\s+.*\\s+from' finds import statements in JavaScript/TypeScript
+
+COMMON INCLUDE PATTERN EXAMPLES:
+- '*.js' - Only search JavaScript files
+- '*.{ts,tsx}' - Only search TypeScript files
+- '*.go' - Only search Go files
+
+LIMITATIONS:
+- Results are limited to 100 files (newest first)
+- Performance depends on the number of files being searched
+- Very large binary files may be skipped
+- Hidden files (starting with '.') are skipped
+
+TIPS:
+- For faster, more targeted searches, first use Glob to find relevant files, then use Grep
+- When doing iterative exploration that may require multiple rounds of searching, consider using the Agent tool instead
+- Always check if results are truncated and refine your search pattern if needed
+- Use literal_text=true when searching for exact text containing special characters like dots, parentheses, etc.`
+
+interface GrepMatch {
+  path: string
+  modTime: number
+  lineNum: number
+  lineText: string
+}
+
+function escapeRegexPattern(pattern: string): string {
+  const specialChars = [
+    "\\",
+    ".",
+    "+",
+    "*",
+    "?",
+    "(",
+    ")",
+    "[",
+    "]",
+    "{",
+    "}",
+    "^",
+    "$",
+    "|",
+  ]
+  let escaped = pattern
+
+  for (const char of specialChars) {
+    escaped = escaped.replaceAll(char, "\\" + char)
+  }
+
+  return escaped
+}
+
+function globToRegex(glob: string): string {
+  let regexPattern = glob.replaceAll(".", "\\.")
+  regexPattern = regexPattern.replaceAll("*", ".*")
+  regexPattern = regexPattern.replaceAll("?", ".")
+
+  // Handle {a,b,c} patterns
+  regexPattern = regexPattern.replace(/\{([^}]+)\}/g, (_, inner) => {
+    return "(" + inner.replace(/,/g, "|") + ")"
+  })
+
+  return regexPattern
+}
+
+async function searchWithRipgrep(
+  pattern: string,
+  searchPath: string,
+  include?: string,
+): Promise<GrepMatch[]> {
+  return new Promise((resolve, reject) => {
+    const args = ["-n", pattern]
+    if (include) {
+      args.push("--glob", include)
+    }
+    args.push(searchPath)
+
+    const rg = spawn("rg", args)
+    let output = ""
+    let errorOutput = ""
+
+    rg.stdout.on("data", (data) => {
+      output += data.toString()
+    })
+
+    rg.stderr.on("data", (data) => {
+      errorOutput += data.toString()
+    })
+
+    rg.on("close", async (code) => {
+      if (code === 1) {
+        // No matches found
+        resolve([])
+        return
+      }
+
+      if (code !== 0) {
+        reject(new Error(`ripgrep failed: ${errorOutput}`))
+        return
+      }
+
+      const lines = output.trim().split("\n")
+      const matches: GrepMatch[] = []
+
+      for (const line of lines) {
+        if (!line) continue
+
+        // Parse ripgrep output format: file:line:content
+        const parts = line.split(":", 3)
+        if (parts.length < 3) continue
+
+        const filePath = parts[0]
+        const lineNum = parseInt(parts[1], 10)
+        const lineText = parts[2]
+
+        try {
+          const stats = await fs.stat(filePath)
+          matches.push({
+            path: filePath,
+            modTime: stats.mtime.getTime(),
+            lineNum,
+            lineText,
+          })
+        } catch {
+          // Skip files we can't access
+          continue
+        }
+      }
+
+      resolve(matches)
+    })
+
+    rg.on("error", (err) => {
+      reject(err)
+    })
+  })
+}
+
+async function searchFilesWithRegex(
+  pattern: string,
+  rootPath: string,
+  include?: string,
+): Promise<GrepMatch[]> {
+  const matches: GrepMatch[] = []
+  const regex = new RegExp(pattern)
+
+  let includePattern: RegExp | undefined
+  if (include) {
+    const regexPattern = globToRegex(include)
+    includePattern = new RegExp(regexPattern)
+  }
+
+  async function walkDir(dir: string) {
+    if (matches.length >= 200) return
+
+    try {
+      const entries = await fs.readdir(dir, { withFileTypes: true })
+
+      for (const entry of entries) {
+        if (matches.length >= 200) break
+
+        const fullPath = path.join(dir, entry.name)
+
+        if (entry.isDirectory()) {
+          // Skip hidden directories
+          if (entry.name.startsWith(".")) continue
+          await walkDir(fullPath)
+        } else if (entry.isFile()) {
+          // Skip hidden files
+          if (entry.name.startsWith(".")) continue
+
+          if (includePattern && !includePattern.test(fullPath)) {
+            continue
+          }
+
+          try {
+            const content = await fs.readFile(fullPath, "utf-8")
+            const lines = content.split("\n")
+
+            for (let i = 0; i < lines.length; i++) {
+              if (regex.test(lines[i])) {
+                const stats = await fs.stat(fullPath)
+                matches.push({
+                  path: fullPath,
+                  modTime: stats.mtime.getTime(),
+                  lineNum: i + 1,
+                  lineText: lines[i],
+                })
+                break // Only first match per file
+              }
+            }
+          } catch {
+            // Skip files we can't read
+            continue
+          }
+        }
+      }
+    } catch {
+      // Skip directories we can't read
+      return
+    }
+  }
+
+  await walkDir(rootPath)
+  return matches
+}
+
+async function searchFiles(
+  pattern: string,
+  rootPath: string,
+  include?: string,
+  limit: number = 100,
+): Promise<{ matches: GrepMatch[]; truncated: boolean }> {
+  let matches: GrepMatch[]
+
+  try {
+    matches = await searchWithRipgrep(pattern, rootPath, include)
+  } catch {
+    matches = await searchFilesWithRegex(pattern, rootPath, include)
+  }
+
+  // Sort by modification time (newest first)
+  matches.sort((a, b) => b.modTime - a.modTime)
+
+  const truncated = matches.length > limit
+  if (truncated) {
+    matches = matches.slice(0, limit)
+  }
+
+  return { matches, truncated }
+}
+
+export const GrepTool = Tool.define({
+  id: "opencode.grep",
+  description: DESCRIPTION,
+  parameters: z.object({
+    pattern: z
+      .string()
+      .describe("The regex pattern to search for in file contents"),
+    path: z
+      .string()
+      .describe(
+        "The directory to search in. Defaults to the current working directory.",
+      )
+      .optional(),
+    include: z
+      .string()
+      .describe(
+        'File pattern to include in the search (e.g. "*.js", "*.{ts,tsx}")',
+      )
+      .optional(),
+    literalText: z
+      .boolean()
+      .describe(
+        "If true, the pattern will be treated as literal text with special regex characters escaped. Default is false.",
+      )
+      .optional(),
+  }),
+  async execute(params) {
+    if (!params.pattern) {
+      throw new Error("pattern is required")
+    }
+
+    const app = await App.use()
+    const searchPath = params.path || app.root
+
+    // If literalText is true, escape the pattern
+    const searchPattern = params.literalText
+      ? escapeRegexPattern(params.pattern)
+      : params.pattern
+
+    const { matches, truncated } = await searchFiles(
+      searchPattern,
+      searchPath,
+      params.include,
+      100,
+    )
+
+    if (matches.length === 0) {
+      return {
+        metadata: { matches: 0, truncated },
+        output: "No files found",
+      }
+    }
+
+    const lines = [`Found ${matches.length} matches`]
+
+    let currentFile = ""
+    for (const match of matches) {
+      if (currentFile !== match.path) {
+        if (currentFile !== "") {
+          lines.push("")
+        }
+        currentFile = match.path
+        lines.push(`${match.path}:`)
+      }
+      if (match.lineNum > 0) {
+        lines.push(`  Line ${match.lineNum}: ${match.lineText}`)
+      } else {
+        lines.push(`  ${match.path}`)
+      }
+    }
+
+    if (truncated) {
+      lines.push("")
+      lines.push(
+        "(Results are truncated. Consider using a more specific path or pattern.)",
+      )
+    }
+
+    return {
+      metadata: {
+        matches: matches.length,
+        truncated,
+      },
+      output: lines.join("\n"),
+    }
+  },
+})

packages/opencode/src/tool/ls.ts

@@ -0,0 +1,96 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+import { App } from "../app/app"
+import * as path from "path"
+
+const IGNORE_PATTERNS = [
+  "node_modules/",
+  "__pycache__/",
+  ".git/",
+  "dist/",
+  "build/",
+  "target/",
+  "vendor/",
+  "bin/",
+  "obj/",
+  ".idea/",
+  ".vscode/",
+]
+
+export const ListTool = Tool.define({
+  id: "opencode.list",
+  description: "List directory contents",
+  parameters: z.object({
+    path: z.string().optional(),
+    ignore: z.array(z.string()).optional(),
+  }),
+  async execute(params) {
+    const app = await App.use()
+    const searchPath = path.resolve(app.root, params.path || ".")
+
+    const glob = new Bun.Glob("**/*")
+    const files = []
+
+    for await (const file of glob.scan({ cwd: searchPath })) {
+      if (file.startsWith(".") || IGNORE_PATTERNS.some((p) => file.includes(p)))
+        continue
+      if (params.ignore?.some((pattern) => new Bun.Glob(pattern).match(file)))
+        continue
+      files.push(file)
+      if (files.length >= 1000) break
+    }
+
+    // Build directory structure
+    const dirs = new Set<string>()
+    const filesByDir = new Map<string, string[]>()
+
+    for (const file of files) {
+      const dir = path.dirname(file)
+      const parts = dir === "." ? [] : dir.split("/")
+
+      // Add all parent directories
+      for (let i = 0; i <= parts.length; i++) {
+        const dirPath = i === 0 ? "." : parts.slice(0, i).join("/")
+        dirs.add(dirPath)
+      }
+
+      // Add file to its directory
+      if (!filesByDir.has(dir)) filesByDir.set(dir, [])
+      filesByDir.get(dir)!.push(path.basename(file))
+    }
+
+    function renderDir(dirPath: string, depth: number): string {
+      const indent = "  ".repeat(depth)
+      let output = ""
+
+      if (depth > 0) {
+        output += `${indent}${path.basename(dirPath)}/\n`
+      }
+
+      const childIndent = "  ".repeat(depth + 1)
+      const children = Array.from(dirs)
+        .filter((d) => path.dirname(d) === dirPath && d !== dirPath)
+        .sort()
+
+      // Render subdirectories first
+      for (const child of children) {
+        output += renderDir(child, depth + 1)
+      }
+
+      // Render files
+      const files = filesByDir.get(dirPath) || []
+      for (const file of files.sort()) {
+        output += `${childIndent}${file}\n`
+      }
+
+      return output
+    }
+
+    const output = `${searchPath}/\n` + renderDir(".", 0)
+
+    return {
+      metadata: { count: files.length, truncated: files.length >= 1000 },
+      output,
+    }
+  },
+})

packages/opencode/src/tool/lsp-diagnostics.ts

@@ -0,0 +1,53 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+import path from "path"
+import { LSP } from "../lsp"
+import { App } from "../app/app"
+
+export const LspDiagnosticTool = Tool.define({
+  id: "opencode.lsp_diagnostics",
+  description: `Get diagnostics for a file and/or project.
+
+WHEN TO USE THIS TOOL:
+- Use when you need to check for errors or warnings in your code
+- Helpful for debugging and ensuring code quality
+- Good for getting a quick overview of issues in a file or project
+
+HOW TO USE:
+- Provide a path to a file to get diagnostics for that file
+- Results are displayed in a structured format with severity levels
+
+FEATURES:
+- Displays errors, warnings, and hints
+- Groups diagnostics by severity
+- Provides detailed information about each diagnostic
+
+LIMITATIONS:
+- Results are limited to the diagnostics provided by the LSP clients
+- May not cover all possible issues in the code
+- Does not provide suggestions for fixing issues
+
+TIPS:
+- Use in conjunction with other tools for a comprehensive code review
+- Combine with the LSP client for real-time diagnostics`,
+  parameters: z.object({
+    path: z.string().describe("The path to the file to get diagnostics."),
+  }),
+  execute: async (args) => {
+    const app = await App.use()
+    const normalized = path.isAbsolute(args.path)
+      ? args.path
+      : path.join(app.root, args.path)
+    await LSP.file(normalized)
+    const diagnostics = await LSP.diagnostics()
+    const file = diagnostics[normalized]
+    return {
+      metadata: {
+        diagnostics,
+      },
+      output: file?.length
+        ? file.map(LSP.Diagnostic.pretty).join("\n")
+        : "No errors found",
+    }
+  },
+})

packages/opencode/src/tool/lsp-hover.ts

@@ -0,0 +1,38 @@
+import { z } from "zod"
+import { Tool } from "./tool"
+import path from "path"
+import { LSP } from "../lsp"
+import { App } from "../app/app"
+
+export const LspHoverTool = Tool.define({
+  id: "opencode.lsp_hover",
+  description: `
+  Looks up hover information for a given position in a source file using the Language Server Protocol (LSP). 
+  This includes type information, documentation, or symbol details at the specified line and character. 
+  Useful for providing code insights, explanations, or context-aware assistance based on the user's current cursor location.
+  `,
+  parameters: z.object({
+    file: z.string().describe("The path to the file to get diagnostics."),
+    line: z.number().describe("The line number to get diagnostics."),
+    character: z.number().describe("The character number to get diagnostics."),
+  }),
+  execute: async (args) => {
+    console.log(args)
+    const app = await App.use()
+    const file = path.isAbsolute(args.file)
+      ? args.file
+      : path.join(app.root, args.file)
+    await LSP.file(file)
+    const result = await LSP.hover({
+      ...args,
+      file,
+    })
+    console.log(result)
+    return {
+      metadata: {
+        result,
+      },
+      output: JSON.stringify(result, null, 2),
+    }
+  },
+})

packages/opencode/src/tool/patch.ts

@@ -0,0 +1,420 @@
+import { z } from "zod"
+import * as path from "path"
+import * as fs from "fs/promises"
+import { Tool } from "./tool"
+import { FileTimes } from "./util/file-times"
+
+const DESCRIPTION = `Applies a patch to multiple files in one operation. This tool is useful for making coordinated changes across multiple files.
+
+The patch text must follow this format:
+*** Begin Patch
+*** Update File: /path/to/file
+@@ Context line (unique within the file)
+ Line to keep
+-Line to remove
++Line to add
+ Line to keep
+*** Add File: /path/to/new/file
++Content of the new file
++More content
+*** Delete File: /path/to/file/to/delete
+*** End Patch
+
+Before using this tool:
+1. Use the FileRead tool to understand the files' contents and context
+2. Verify all file paths are correct (use the LS tool)
+
+CRITICAL REQUIREMENTS FOR USING THIS TOOL:
+
+1. UNIQUENESS: Context lines MUST uniquely identify the specific sections you want to change
+2. PRECISION: All whitespace, indentation, and surrounding code must match exactly
+3. VALIDATION: Ensure edits result in idiomatic, correct code
+4. PATHS: Always use absolute file paths (starting with /)
+
+The tool will apply all changes in a single atomic operation.`
+
+const PatchParams = z.object({
+  patchText: z
+    .string()
+    .describe("The full patch text that describes all changes to be made"),
+})
+
+interface PatchResponseMetadata {
+  changed: string[]
+  additions: number
+  removals: number
+}
+
+interface Change {
+  type: "add" | "update" | "delete"
+  old_content?: string
+  new_content?: string
+}
+
+interface Commit {
+  changes: Record<string, Change>
+}
+
+interface PatchOperation {
+  type: "update" | "add" | "delete"
+  filePath: string
+  hunks?: PatchHunk[]
+  content?: string
+}
+
+interface PatchHunk {
+  contextLine: string
+  changes: PatchChange[]
+}
+
+interface PatchChange {
+  type: "keep" | "remove" | "add"
+  content: string
+}
+
+function identifyFilesNeeded(patchText: string): string[] {
+  const files: string[] = []
+  const lines = patchText.split("\n")
+  for (const line of lines) {
+    if (
+      line.startsWith("*** Update File:") ||
+      line.startsWith("*** Delete File:")
+    ) {
+      const filePath = line.split(":", 2)[1]?.trim()
+      if (filePath) files.push(filePath)
+    }
+  }
+  return files
+}
+
+function identifyFilesAdded(patchText: string): string[] {
+  const files: string[] = []
+  const lines = patchText.split("\n")
+  for (const line of lines) {
+    if (line.startsWith("*** Add File:")) {
+      const filePath = line.split(":", 2)[1]?.trim()
+      if (filePath) files.push(filePath)
+    }
+  }
+  return files
+}
+
+function textToPatch(
+  patchText: string,
+  _currentFiles: Record<string, string>,
+): [PatchOperation[], number] {
+  const operations: PatchOperation[] = []
+  const lines = patchText.split("\n")
+  let i = 0
+  let fuzz = 0
+
+  while (i < lines.length) {
+    const line = lines[i]
+
+    if (line.startsWith("*** Update File:")) {
+      const filePath = line.split(":", 2)[1]?.trim()
+      if (!filePath) {
+        i++
+        continue
+      }
+
+      const hunks: PatchHunk[] = []
+      i++
+
+      while (i < lines.length && !lines[i].startsWith("***")) {
+        if (lines[i].startsWith("@@")) {
+          const contextLine = lines[i].substring(2).trim()
+          const changes: PatchChange[] = []
+          i++
+
+          while (
+            i < lines.length &&
+            !lines[i].startsWith("@@") &&
+            !lines[i].startsWith("***")
+          ) {
+            const changeLine = lines[i]
+            if (changeLine.startsWith(" ")) {
+              changes.push({ type: "keep", content: changeLine.substring(1) })
+            } else if (changeLine.startsWith("-")) {
+              changes.push({
+                type: "remove",
+                content: changeLine.substring(1),
+              })
+            } else if (changeLine.startsWith("+")) {
+              changes.push({ type: "add", content: changeLine.substring(1) })
+            }
+            i++
+          }
+
+          hunks.push({ contextLine, changes })
+        } else {
+          i++
+        }
+      }
+
+      operations.push({ type: "update", filePath, hunks })
+    } else if (line.startsWith("*** Add File:")) {
+      const filePath = line.split(":", 2)[1]?.trim()
+      if (!filePath) {
+        i++
+        continue
+      }
+
+      let content = ""
+      i++
+
+      while (i < lines.length && !lines[i].startsWith("***")) {
+        if (lines[i].startsWith("+")) {
+          content += lines[i].substring(1) + "\n"
+        }
+        i++
+      }
+
+      operations.push({ type: "add", filePath, content: content.slice(0, -1) })
+    } else if (line.startsWith("*** Delete File:")) {
+      const filePath = line.split(":", 2)[1]?.trim()
+      if (filePath) {
+        operations.push({ type: "delete", filePath })
+      }
+      i++
+    } else {
+      i++
+    }
+  }
+
+  return [operations, fuzz]
+}
+
+function patchToCommit(
+  operations: PatchOperation[],
+  currentFiles: Record<string, string>,
+): Commit {
+  const changes: Record<string, Change> = {}
+
+  for (const op of operations) {
+    if (op.type === "delete") {
+      changes[op.filePath] = {
+        type: "delete",
+        old_content: currentFiles[op.filePath] || "",
+      }
+    } else if (op.type === "add") {
+      changes[op.filePath] = {
+        type: "add",
+        new_content: op.content || "",
+      }
+    } else if (op.type === "update" && op.hunks) {
+      const originalContent = currentFiles[op.filePath] || ""
+      const lines = originalContent.split("\n")
+
+      for (const hunk of op.hunks) {
+        const contextIndex = lines.findIndex((line) =>
+          line.includes(hunk.contextLine),
+        )
+        if (contextIndex === -1) {
+          throw new Error(`Context line not found: ${hunk.contextLine}`)
+        }
+
+        let currentIndex = contextIndex
+        for (const change of hunk.changes) {
+          if (change.type === "keep") {
+            currentIndex++
+          } else if (change.type === "remove") {
+            lines.splice(currentIndex, 1)
+          } else if (change.type === "add") {
+            lines.splice(currentIndex, 0, change.content)
+            currentIndex++
+          }
+        }
+      }
+
+      changes[op.filePath] = {
+        type: "update",
+        old_content: originalContent,
+        new_content: lines.join("\n"),
+      }
+    }
+  }
+
+  return { changes }
+}
+
+function generateDiff(
+  oldContent: string,
+  newContent: string,
+  filePath: string,
+): [string, number, number] {
+  // Mock implementation - would need actual diff generation
+  const lines1 = oldContent.split("\n")
+  const lines2 = newContent.split("\n")
+  const additions = Math.max(0, lines2.length - lines1.length)
+  const removals = Math.max(0, lines1.length - lines2.length)
+  return [`--- ${filePath}\n+++ ${filePath}\n`, additions, removals]
+}
+
+async function applyCommit(
+  commit: Commit,
+  writeFile: (path: string, content: string) => Promise<void>,
+  deleteFile: (path: string) => Promise<void>,
+): Promise<void> {
+  for (const [filePath, change] of Object.entries(commit.changes)) {
+    if (change.type === "delete") {
+      await deleteFile(filePath)
+    } else if (change.new_content !== undefined) {
+      await writeFile(filePath, change.new_content)
+    }
+  }
+}
+
+export const PatchTool = Tool.define({
+  id: "opencode.patch",
+  description: DESCRIPTION,
+  parameters: PatchParams,
+  execute: async (params) => {
+    if (!params.patchText) {
+      throw new Error("patchText is required")
+    }
+
+    // Identify all files needed for the patch and verify they've been read
+    const filesToRead = identifyFilesNeeded(params.patchText)
+    for (const filePath of filesToRead) {
+      let absPath = filePath
+      if (!path.isAbsolute(absPath)) {
+        absPath = path.resolve(process.cwd(), absPath)
+      }
+
+      if (!FileTimes.get(absPath)) {
+        throw new Error(
+          `you must read the file ${filePath} before patching it. Use the FileRead tool first`,
+        )
+      }
+
+      try {
+        const stats = await fs.stat(absPath)
+        if (stats.isDirectory()) {
+          throw new Error(`path is a directory, not a file: ${absPath}`)
+        }
+
+        const lastRead = FileTimes.get(absPath)
+        if (lastRead && stats.mtime > lastRead) {
+          throw new Error(
+            `file ${absPath} has been modified since it was last read (mod time: ${stats.mtime.toISOString()}, last read: ${lastRead.toISOString()})`,
+          )
+        }
+      } catch (error: any) {
+        if (error.code === "ENOENT") {
+          throw new Error(`file not found: ${absPath}`)
+        }
+        throw new Error(`failed to access file: ${error.message}`)
+      }
+    }
+
+    // Check for new files to ensure they don't already exist
+    const filesToAdd = identifyFilesAdded(params.patchText)
+    for (const filePath of filesToAdd) {
+      let absPath = filePath
+      if (!path.isAbsolute(absPath)) {
+        absPath = path.resolve(process.cwd(), absPath)
+      }
+
+      try {
+        await fs.stat(absPath)
+        throw new Error(`file already exists and cannot be added: ${absPath}`)
+      } catch (error: any) {
+        if (error.code !== "ENOENT") {
+          throw new Error(`failed to check file: ${error.message}`)
+        }
+      }
+    }
+
+    // Load all required files
+    const currentFiles: Record<string, string> = {}
+    for (const filePath of filesToRead) {
+      let absPath = filePath
+      if (!path.isAbsolute(absPath)) {
+        absPath = path.resolve(process.cwd(), absPath)
+      }
+
+      try {
+        const content = await fs.readFile(absPath, "utf-8")
+        currentFiles[filePath] = content
+      } catch (error: any) {
+        throw new Error(`failed to read file ${absPath}: ${error.message}`)
+      }
+    }
+
+    // Process the patch
+    const [patch, fuzz] = textToPatch(params.patchText, currentFiles)
+    if (fuzz > 3) {
+      throw new Error(
+        `patch contains fuzzy matches (fuzz level: ${fuzz}). Please make your context lines more precise`,
+      )
+    }
+
+    // Convert patch to commit
+    const commit = patchToCommit(patch, currentFiles)
+
+    // Apply the changes to the filesystem
+    await applyCommit(
+      commit,
+      async (filePath: string, content: string) => {
+        let absPath = filePath
+        if (!path.isAbsolute(absPath)) {
+          absPath = path.resolve(process.cwd(), absPath)
+        }
+
+        // Create parent directories if needed
+        const dir = path.dirname(absPath)
+        await fs.mkdir(dir, { recursive: true })
+        await fs.writeFile(absPath, content, "utf-8")
+      },
+      async (filePath: string) => {
+        let absPath = filePath
+        if (!path.isAbsolute(absPath)) {
+          absPath = path.resolve(process.cwd(), absPath)
+        }
+        await fs.unlink(absPath)
+      },
+    )
+
+    // Calculate statistics
+    const changedFiles: string[] = []
+    let totalAdditions = 0
+    let totalRemovals = 0
+
+    for (const [filePath, change] of Object.entries(commit.changes)) {
+      let absPath = filePath
+      if (!path.isAbsolute(absPath)) {
+        absPath = path.resolve(process.cwd(), absPath)
+      }
+      changedFiles.push(absPath)
+
+      const oldContent = change.old_content || ""
+      const newContent = change.new_content || ""
+
+      // Calculate diff statistics
+      const [, additions, removals] = generateDiff(
+        oldContent,
+        newContent,
+        filePath,
+      )
+      totalAdditions += additions
+      totalRemovals += removals
+
+      // Record file operations
+      FileTimes.write(absPath)
+      FileTimes.read(absPath)
+    }
+
+    const result = `Patch applied successfully. ${changedFiles.length} files changed, ${totalAdditions} additions, ${totalRemovals} removals`
+    const output = result
+
+    return {
+      metadata: {
+        changed: changedFiles,
+        additions: totalAdditions,
+        removals: totalRemovals,
+      } satisfies PatchResponseMetadata,
+      output,
+    }
+  },
+})

packages/opencode/src/tool/tool.ts

@@ -0,0 +1,23 @@
+import type { StandardSchemaV1 } from "@standard-schema/spec"
+
+export namespace Tool {
+  export interface Info<
+    Parameters extends StandardSchemaV1 = StandardSchemaV1,
+    Metadata extends Record<string, any> = Record<string, any>,
+  > {
+    id: string
+    description: string
+    parameters: Parameters
+    execute(args: StandardSchemaV1.InferOutput<Parameters>): Promise<{
+      metadata: Metadata
+      output: string
+    }>
+  }
+
+  export function define<
+    Parameters extends StandardSchemaV1,
+    Result extends Record<string, any>,
+  >(input: Info<Parameters, Result>): Info<Parameters, Result> {
+    return input
+  }
+}

packages/opencode/src/tool/util/file-times.ts

@@ -0,0 +1,20 @@
+import { App } from "../../app/app"
+
+export namespace FileTimes {
+  export const state = App.state("tool.filetimes", () => ({
+    read: new Map<string, Date>(),
+    write: new Map<string, Date>(),
+  }))
+
+  export function read(filePath: string) {
+    state().read.set(filePath, new Date())
+  }
+
+  export function write(filePath: string) {
+    state().write.set(filePath, new Date())
+  }
+
+  export function get(filePath: string): Date | null {
+    return state().read.get(filePath) || null
+  }
+}

packages/opencode/src/tool/view.ts

@@ -0,0 +1,152 @@
+import { z } from "zod"
+import * as fs from "fs"
+import * as path from "path"
+import { Tool } from "./tool"
+import { LSP } from "../lsp"
+import { FileTimes } from "./util/file-times"
+
+const MAX_READ_SIZE = 250 * 1024
+const DEFAULT_READ_LIMIT = 2000
+const MAX_LINE_LENGTH = 2000
+
+const DESCRIPTION = `File viewing tool that reads and displays the contents of files with line numbers, allowing you to examine code, logs, or text data.
+
+WHEN TO USE THIS TOOL:
+- Use when you need to read the contents of a specific file
+- Helpful for examining source code, configuration files, or log files
+- Perfect for looking at text-based file formats
+
+HOW TO USE:
+- Provide the path to the file you want to view
+- Optionally specify an offset to start reading from a specific line
+- Optionally specify a limit to control how many lines are read
+
+FEATURES:
+- Displays file contents with line numbers for easy reference
+- Can read from any position in a file using the offset parameter
+- Handles large files by limiting the number of lines read
+- Automatically truncates very long lines for better display
+- Suggests similar file names when the requested file isn't found
+
+LIMITATIONS:
+- Maximum file size is 250KB
+- Default reading limit is 2000 lines
+- Lines longer than 2000 characters are truncated
+- Cannot display binary files or images
+- Images can be identified but not displayed
+
+TIPS:
+- Use with Glob tool to first find files you want to view
+- For code exploration, first use Grep to find relevant files, then View to examine them
+- When viewing large files, use the offset parameter to read specific sections`
+
+export const ViewTool = Tool.define({
+  id: "opencode.view",
+  description: DESCRIPTION,
+  parameters: z.object({
+    filePath: z.string().describe("The path to the file to read"),
+    offset: z
+      .number()
+      .describe("The line number to start reading from (0-based)")
+      .optional(),
+    limit: z
+      .number()
+      .describe("The number of lines to read (defaults to 2000)")
+      .optional(),
+  }),
+  async execute(params) {
+    let filePath = params.filePath
+    if (!path.isAbsolute(filePath)) {
+      filePath = path.join(process.cwd(), filePath)
+    }
+
+    const file = Bun.file(filePath)
+    if (!(await file.exists())) {
+      const dir = path.dirname(filePath)
+      const base = path.basename(filePath)
+
+      const dirEntries = fs.readdirSync(dir)
+      const suggestions = dirEntries
+        .filter(
+          (entry) =>
+            entry.toLowerCase().includes(base.toLowerCase()) ||
+            base.toLowerCase().includes(entry.toLowerCase()),
+        )
+        .map((entry) => path.join(dir, entry))
+        .slice(0, 3)
+
+      if (suggestions.length > 0) {
+        throw new Error(
+          `File not found: ${filePath}\n\nDid you mean one of these?\n${suggestions.join("\n")}`,
+        )
+      }
+
+      throw new Error(`File not found: ${filePath}`)
+    }
+    const stats = await file.stat()
+
+    if (stats.size > MAX_READ_SIZE)
+      throw new Error(
+        `File is too large (${stats.size} bytes). Maximum size is ${MAX_READ_SIZE} bytes`,
+      )
+    const limit = params.limit ?? DEFAULT_READ_LIMIT
+    const offset = params.offset || 0
+    const isImage = isImageFile(filePath)
+    if (isImage)
+      throw new Error(
+        `This is an image file of type: ${isImage}\nUse a different tool to process images`,
+      )
+    const lines = await file.text().then((text) => text.split("\n"))
+    const raw = lines.slice(offset, offset + limit).map((line) => {
+      return line.length > MAX_LINE_LENGTH
+        ? line.substring(0, MAX_LINE_LENGTH) + "..."
+        : line
+    })
+    const content = raw.map((line, index) => {
+      return `${(index + offset + 1).toString().padStart(5, "0")}| ${line}`
+    })
+    const preview = raw.slice(0, 20).join("\n")
+
+    let output = "<file>\n"
+    output += content.join("\n")
+
+    if (lines.length > offset + content.length) {
+      output += `\n\n(File has more lines. Use 'offset' parameter to read beyond line ${
+        offset + content.length
+      })`
+    }
+    output += "\n</file>"
+
+    // just warms the lsp client
+    LSP.file(filePath)
+    FileTimes.read(filePath)
+
+    return {
+      output,
+      metadata: {
+        preview,
+      },
+    }
+  },
+})
+
+function isImageFile(filePath: string): string | false {
+  const ext = path.extname(filePath).toLowerCase()
+  switch (ext) {
+    case ".jpg":
+    case ".jpeg":
+      return "JPEG"
+    case ".png":
+      return "PNG"
+    case ".gif":
+      return "GIF"
+    case ".bmp":
+      return "BMP"
+    case ".svg":
+      return "SVG"
+    case ".webp":
+      return "WebP"
+    default:
+      return false
+  }
+}

packages/opencode/src/util/context.ts

@@ -0,0 +1,25 @@
+import { AsyncLocalStorage } from "async_hooks"
+
+export namespace Context {
+  export class NotFound extends Error {
+    constructor(public readonly name: string) {
+      super(`No context found for ${name}`)
+    }
+  }
+
+  export function create<T>(name: string) {
+    const storage = new AsyncLocalStorage<T>()
+    return {
+      use() {
+        const result = storage.getStore()
+        if (!result) {
+          throw new NotFound(name)
+        }
+        return result
+      },
+      provide<R>(value: T, fn: () => R) {
+        return storage.run<R>(value, fn)
+      },
+    }
+  }
+}

packages/opencode/src/util/log.ts

@@ -0,0 +1,70 @@
+import path from "path"
+import { AppPath } from "../app/path"
+import fs from "fs/promises"
+export namespace Log {
+  const write = {
+    out: (msg: string) => {
+      process.stdout.write(msg)
+    },
+    err: (msg: string) => {
+      process.stderr.write(msg)
+    },
+  }
+
+  export async function file(directory: string) {
+    const outPath = path.join(AppPath.data(directory), "opencode.out.log")
+    const errPath = path.join(AppPath.data(directory), "opencode.err.log")
+    await fs.truncate(outPath).catch(() => {})
+    await fs.truncate(errPath).catch(() => {})
+    const out = Bun.file(outPath)
+    const err = Bun.file(errPath)
+    const outWriter = out.writer()
+    const errWriter = err.writer()
+    write["out"] = (msg) => {
+      outWriter.write(msg)
+      outWriter.flush()
+    }
+    write["err"] = (msg) => {
+      errWriter.write(msg)
+      errWriter.flush()
+    }
+  }
+
+  export function create(tags?: Record<string, any>) {
+    tags = tags || {}
+
+    function build(message: any, extra?: Record<string, any>) {
+      const prefix = Object.entries({
+        ...tags,
+        ...extra,
+      })
+        .filter(([_, value]) => value !== undefined && value !== null)
+        .map(([key, value]) => `${key}=${value}`)
+        .join(" ")
+      return (
+        [new Date().toISOString(), prefix, message].filter(Boolean).join(" ") +
+        "\n"
+      )
+    }
+    const result = {
+      info(message?: any, extra?: Record<string, any>) {
+        write.out(build(message, extra))
+      },
+      error(message?: any, extra?: Record<string, any>) {
+        write.err(build(message, extra))
+      },
+      warn(message?: any, extra?: Record<string, any>) {
+        write.err(build(message, extra))
+      },
+      tag(key: string, value: string) {
+        if (tags) tags[key] = value
+        return result
+      },
+      clone() {
+        return Log.create({ ...tags })
+      },
+    }
+
+    return result
+  }
+}

packages/opencode/src/util/scrap.ts

@@ -0,0 +1,10 @@
+export const foo: string = "42"
+export const bar: number = 123
+
+export function dummyFunction(): void {
+  console.log("This is a dummy function")
+}
+
+export function randomHelper(): boolean {
+  return Math.random() > 0.5
+}

packages/opencode/test/tool/__snapshots__/tool.test.ts.snap

@@ -0,0 +1,17 @@
+// Bun Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`tool.ls basic 1`] = `
+"- /home/thdxr/dev/projects/sst/opencode/js/example/
+  - home/
+    - thdxr/
+      - dev/
+        - projects/
+          - sst/
+            - opencode/
+              - js/
+                - example/
+                  - ink.tsx
+                  - broken.ts
+                  - cli.ts
+"
+`;

packages/opencode/test/tool/tool.test.ts

@@ -0,0 +1,55 @@
+import { describe, expect, test } from "bun:test"
+import { App } from "../../src/app/app"
+import { GlobTool } from "../../src/tool/glob"
+import { ls } from "../../src/tool/ls"
+
+describe("tool.glob", () => {
+  test("truncate", async () => {
+    await App.provide({ directory: process.cwd() }, async () => {
+      let result = await GlobTool.execute(
+        {
+          pattern: "./node_modules/**/*",
+        },
+        {
+          toolCallId: "test",
+          messages: [],
+        },
+      )
+      expect(result.metadata.truncated).toBe(true)
+    })
+  })
+  test("basic", async () => {
+    await App.provide({ directory: process.cwd() }, async () => {
+      let result = await GlobTool.execute(
+        {
+          pattern: "*.json",
+        },
+        {
+          toolCallId: "test",
+          messages: [],
+        },
+      )
+      expect(result.metadata).toMatchObject({
+        truncated: false,
+        count: 2,
+      })
+    })
+  })
+})
+
+describe("tool.ls", () => {
+  test("basic", async () => {
+    const result = await App.provide({ directory: process.cwd() }, async () => {
+      return await ls.execute(
+        {
+          path: "./example",
+        },
+        {
+          toolCallId: "test",
+          messages: [],
+        },
+      )
+    })
+    expect(result.output).toMatchSnapshot()
+  })
+})

packages/opencode/tsconfig.json

@@ -0,0 +1,5 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "@tsconfig/bun/tsconfig.json",
+  "compilerOptions": {}
+}

packages/tui/.goreleaser.yml

@@ -0,0 +1,77 @@
+version: 2
+project_name: opencode
+before:
+  hooks:
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+    ldflags:
+      - -s -w -X github.com/sst/opencode/internal/version.Version={{.Version}}
+    main: ./main.go
+
+archives:
+  - format: tar.gz
+    name_template: >-
+      opencode-
+      {{- if eq .Os "darwin" }}mac-
+      {{- else if eq .Os "windows" }}windows-
+      {{- else if eq .Os "linux" }}linux-{{end}}
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else if eq .Arch "#86" }}i386
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}
+    format_overrides:
+      - goos: windows
+        format: zip
+checksum:
+  name_template: "checksums.txt"
+snapshot:
+  name_template: "0.0.0-{{ .Timestamp }}"
+aurs:
+  - name: opencode
+    homepage: "https://github.com/sst/opencode"
+    description: "terminal based agent that can build anything"
+    maintainers:
+      - "dax"
+      - "adam"
+    license: "MIT"
+    private_key: "{{ .Env.AUR_KEY }}"
+    git_url: "ssh://aur@aur.archlinux.org/opencode-bin.git"
+    provides:
+      - opencode
+    conflicts:
+      - opencode
+    package: |-
+      install -Dm755 ./opencode "${pkgdir}/usr/bin/opencode"
+brews:
+  - repository:
+      owner: sst
+      name: homebrew-tap
+nfpms:
+  - maintainer: kujtimiihoxha
+    description: terminal based agent that can build anything
+    formats:
+      - deb
+      - rpm
+    file_name_template: >-
+      {{ .ProjectName }}-
+      {{- if eq .Os "darwin" }}mac
+      {{- else }}{{ .Os }}{{ end }}-{{ .Arch }}
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^doc:"
+      - "^test:"
+      - "^ci:"
+      - "^ignore:"
+      - "^example:"
+      - "^wip:"

packages/tui/cmd/root.go

@@ -0,0 +1,258 @@
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"sync"
+	"time"
+
+	"log/slog"
+
+	tea "github.com/charmbracelet/bubbletea"
+	zone "github.com/lrstanley/bubblezone"
+	"github.com/spf13/cobra"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/pubsub"
+	"github.com/sst/opencode/internal/tui"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/version"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "OpenCode",
+	Short: "A terminal AI assistant for software development",
+	Long: `OpenCode is a powerful terminal-based AI assistant that helps with software development tasks.
+It provides an interactive chat interface with AI capabilities, code analysis, and LSP integration
+to assist developers in writing, debugging, and understanding code directly from the terminal.`,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		// If the help flag is set, show the help message
+		if cmd.Flag("help").Changed {
+			cmd.Help()
+			return nil
+		}
+		if cmd.Flag("version").Changed {
+			fmt.Println(version.Version)
+			return nil
+		}
+
+		// Setup logging
+		file, err := os.OpenFile("app.log", os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
+		if err != nil {
+			panic(err)
+		}
+		defer file.Close()
+		logger := slog.New(slog.NewTextHandler(file, &slog.HandlerOptions{Level: slog.LevelDebug}))
+		slog.SetDefault(logger)
+
+		// Load the config
+		debug, _ := cmd.Flags().GetBool("debug")
+		cwd, _ := cmd.Flags().GetString("cwd")
+		if cwd != "" {
+			err := os.Chdir(cwd)
+			if err != nil {
+				return fmt.Errorf("failed to change directory: %v", err)
+			}
+		}
+		if cwd == "" {
+			c, err := os.Getwd()
+			if err != nil {
+				return fmt.Errorf("failed to get current working directory: %v", err)
+			}
+			cwd = c
+		}
+		_, err = config.Load(cwd, debug)
+		if err != nil {
+			return err
+		}
+
+		// Create main context for the application
+		ctx, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		app, err := app.New(ctx)
+		if err != nil {
+			slog.Error("Failed to create app", "error", err)
+			return err
+		}
+
+		// Set up the TUI
+		zone.NewGlobal()
+		program := tea.NewProgram(
+			tui.New(app),
+			tea.WithAltScreen(),
+		)
+
+		evts, err := app.Events.Event(ctx)
+		if err != nil {
+			slog.Error("Failed to subscribe to events", "error", err)
+			return err
+		}
+
+		go func() {
+			for item := range evts {
+				program.Send(item)
+			}
+		}()
+
+		// Setup the subscriptions, this will send services events to the TUI
+		ch, cancelSubs := setupSubscriptions(app, ctx)
+
+		// Create a context for the TUI message handler
+		tuiCtx, tuiCancel := context.WithCancel(ctx)
+		var tuiWg sync.WaitGroup
+		tuiWg.Add(1)
+
+		// Set up message handling for the TUI
+		go func() {
+			defer tuiWg.Done()
+			// defer logging.RecoverPanic("TUI-message-handler", func() {
+			// 	attemptTUIRecovery(program)
+			// })
+
+			for {
+				select {
+				case <-tuiCtx.Done():
+					slog.Info("TUI message handler shutting down")
+					return
+				case msg, ok := <-ch:
+					if !ok {
+						slog.Info("TUI message channel closed")
+						return
+					}
+					program.Send(msg)
+				}
+			}
+		}()
+
+		// Cleanup function for when the program exits
+		cleanup := func() {
+			// Cancel subscriptions first
+			cancelSubs()
+
+			// Then shutdown the app
+			app.Shutdown()
+
+			// Then cancel TUI message handler
+			tuiCancel()
+
+			// Wait for TUI message handler to finish
+			tuiWg.Wait()
+
+			slog.Info("All goroutines cleaned up")
+		}
+
+		// Run the TUI
+		result, err := program.Run()
+		cleanup()
+
+		if err != nil {
+			slog.Error("TUI error", "error", err)
+			return fmt.Errorf("TUI error: %v", err)
+		}
+
+		slog.Info("TUI exited", "result", result)
+		return nil
+	},
+}
+
+func setupSubscriber[T any](
+	ctx context.Context,
+	wg *sync.WaitGroup,
+	name string,
+	subscriber func(context.Context) <-chan pubsub.Event[T],
+	outputCh chan<- tea.Msg,
+) {
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		// defer logging.RecoverPanic(fmt.Sprintf("subscription-%s", name), nil)
+
+		subCh := subscriber(ctx)
+		if subCh == nil {
+			slog.Warn("subscription channel is nil", "name", name)
+			return
+		}
+
+		for {
+			select {
+			case event, ok := <-subCh:
+				if !ok {
+					slog.Info("subscription channel closed", "name", name)
+					return
+				}
+
+				var msg tea.Msg = event
+
+				select {
+				case outputCh <- msg:
+				case <-time.After(2 * time.Second):
+					slog.Warn("message dropped due to slow consumer", "name", name)
+				case <-ctx.Done():
+					slog.Info("subscription cancelled", "name", name)
+					return
+				}
+			case <-ctx.Done():
+				slog.Info("subscription cancelled", "name", name)
+				return
+			}
+		}
+	}()
+}
+
+func setupSubscriptions(app *app.App, parentCtx context.Context) (chan tea.Msg, func()) {
+	ch := make(chan tea.Msg, 100)
+
+	wg := sync.WaitGroup{}
+	ctx, cancel := context.WithCancel(parentCtx) // Inherit from parent context
+
+	setupSubscriber(ctx, &wg, "status", app.Status.Subscribe, ch)
+
+	cleanupFunc := func() {
+		slog.Info("Cancelling all subscriptions")
+		cancel() // Signal all goroutines to stop
+
+		waitCh := make(chan struct{})
+		go func() {
+			// defer logging.RecoverPanic("subscription-cleanup", nil)
+			wg.Wait()
+			close(waitCh)
+		}()
+
+		select {
+		case <-waitCh:
+			slog.Info("All subscription goroutines completed successfully")
+			close(ch) // Only close after all writers are confirmed done
+		case <-time.After(5 * time.Second):
+			slog.Warn("Timed out waiting for some subscription goroutines to complete")
+			close(ch)
+		}
+	}
+	return ch, cleanupFunc
+}
+
+func Execute() {
+	err := rootCmd.Execute()
+	if err != nil {
+		os.Exit(1)
+	}
+}
+
+func init() {
+	rootCmd.Flags().BoolP("help", "h", false, "Help")
+	rootCmd.Flags().BoolP("version", "v", false, "Version")
+	rootCmd.Flags().BoolP("debug", "d", false, "Debug")
+	rootCmd.Flags().StringP("cwd", "c", "", "Current working directory")
+	rootCmd.Flags().StringP("prompt", "p", "", "Run a single prompt in non-interactive mode")
+	rootCmd.Flags().StringP("output-format", "f", "text", "Output format for non-interactive mode (text, json)")
+	rootCmd.Flags().BoolP("quiet", "q", false, "Hide spinner in non-interactive mode")
+	rootCmd.Flags().BoolP("verbose", "", false, "Display logs to stderr in non-interactive mode")
+	rootCmd.Flags().StringSlice("allowedTools", nil, "Restrict the agent to only use the specified tools in non-interactive mode (comma-separated list)")
+	rootCmd.Flags().StringSlice("excludedTools", nil, "Prevent the agent from using the specified tools in non-interactive mode (comma-separated list)")
+
+	// Make allowedTools and excludedTools mutually exclusive
+	rootCmd.MarkFlagsMutuallyExclusive("allowedTools", "excludedTools")
+
+	// Make quiet and verbose mutually exclusive
+	rootCmd.MarkFlagsMutuallyExclusive("quiet", "verbose")
+}

packages/tui/go.mod

@@ -0,0 +1,105 @@
+module github.com/sst/opencode
+
+go 1.24.0
+
+require (
+	github.com/alecthomas/chroma/v2 v2.15.0
+	github.com/aymanbagabas/go-udiff v0.2.0
+	github.com/bmatcuk/doublestar/v4 v4.8.1
+	github.com/catppuccin/go v0.3.0
+	github.com/charmbracelet/bubbles v0.21.0
+	github.com/charmbracelet/bubbletea v1.3.4
+	github.com/charmbracelet/glamour v0.9.1
+	github.com/charmbracelet/lipgloss v1.1.0
+	github.com/charmbracelet/x/ansi v0.8.0
+	github.com/lithammer/fuzzysearch v1.1.8
+	github.com/lrstanley/bubblezone v0.0.0-20250315020633-c249a3fe1231
+	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6
+	github.com/muesli/reflow v0.3.0
+	github.com/muesli/termenv v0.16.0
+	github.com/oapi-codegen/runtime v1.1.1
+	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3
+	github.com/spf13/cobra v1.9.1
+	github.com/spf13/viper v1.20.0
+	github.com/stretchr/testify v1.10.0
+	rsc.io/qr v0.2.0
+)
+
+require golang.org/x/exp v0.0.0-20250305212735-054e65f0b394 // indirect
+
+require (
+	dario.cat/mergo v1.0.2 // indirect
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/atombender/go-jsonschema v0.20.0 // indirect
+	github.com/dprotaso/go-yit v0.0.0-20220510233725-9ba8df137936 // indirect
+	github.com/fsnotify/fsnotify v1.8.0 // indirect
+	github.com/getkin/kin-openapi v0.127.0 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/goccy/go-yaml v1.17.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/invopop/yaml v0.3.1 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
+	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect
+	github.com/oapi-codegen/oapi-codegen/v2 v2.4.1 // indirect
+	github.com/perimeterx/marshmallow v1.1.5 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/sanity-io/litter v1.5.8 // indirect
+	github.com/sosodev/duration v1.3.1 // indirect
+	github.com/speakeasy-api/openapi-overlay v0.9.0 // indirect
+	github.com/vmware-labs/yaml-jsonpath v0.3.2 // indirect
+	golang.org/x/mod v0.24.0 // indirect
+	golang.org/x/tools v0.31.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)
+
+require (
+	github.com/atotto/clipboard v0.1.4
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/aymerick/douceur v0.2.0 // indirect
+	github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd // indirect
+	github.com/charmbracelet/x/term v0.2.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/disintegration/imaging v1.6.2
+	github.com/dlclark/regexp2 v1.11.4 // indirect
+	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/google/go-cmp v0.7.0 // indirect
+	github.com/gorilla/css v1.0.1 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-localereader v0.0.1 // indirect
+	github.com/mattn/go-runewidth v0.0.16 // indirect
+	github.com/microcosm-cc/bluemonday v1.0.27 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.3 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/rogpeppe/go-internal v1.14.1 // indirect
+	github.com/sagikazarmark/locafero v0.7.0 // indirect
+	github.com/sourcegraph/conc v0.3.0 // indirect
+	github.com/spf13/afero v1.12.0 // indirect
+	github.com/spf13/cast v1.7.1 // indirect
+	github.com/spf13/pflag v1.0.6 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	github.com/yuin/goldmark v1.7.8 // indirect
+	github.com/yuin/goldmark-emoji v1.0.5 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/image v0.26.0
+	golang.org/x/net v0.39.0 // indirect
+	golang.org/x/sync v0.13.0 // indirect
+	golang.org/x/sys v0.32.0 // indirect
+	golang.org/x/term v0.31.0 // indirect
+	golang.org/x/text v0.24.0
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
+
+tool (
+	github.com/atombender/go-jsonschema
+	github.com/oapi-codegen/oapi-codegen/v2/cmd/oapi-codegen
+)

packages/tui/go.sum

@@ -0,0 +1,338 @@
+dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
+dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
+github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ4pzQ=
+github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
+github.com/RaveNoX/go-jsoncommentstrip v1.0.0/go.mod h1:78ihd09MekBnJnxpICcwzCMzGrKSKYe4AqU6PDYYpjk=
+github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
+github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
+github.com/alecthomas/chroma/v2 v2.15.0 h1:LxXTQHFoYrstG2nnV9y2X5O94sOBzf0CIUpSTbpxvMc=
+github.com/alecthomas/chroma/v2 v2.15.0/go.mod h1:gUhVLrPDXPtp/f+L1jo9xepo9gL4eLwRuGAunSZMkio=
+github.com/alecthomas/repr v0.4.0 h1:GhI2A8MACjfegCPVq9f1FLvIBS+DrQ2KQBFZP1iFzXc=
+github.com/alecthomas/repr v0.4.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
+github.com/apapsch/go-jsonmerge/v2 v2.0.0 h1:axGnT1gRIfimI7gJifB699GoE/oq+F2MU7Dml6nw9rQ=
+github.com/apapsch/go-jsonmerge/v2 v2.0.0/go.mod h1:lvDnEdqiQrp0O42VQGgmlKpxL1AP2+08jFMw88y4klk=
+github.com/atombender/go-jsonschema v0.20.0 h1:AHg0LeI0HcjQ686ALwUNqVJjNRcSXpIR6U+wC2J0aFY=
+github.com/atombender/go-jsonschema v0.20.0/go.mod h1:ZmbuR11v2+cMM0PdP6ySxtyZEGFBmhgF4xa4J6Hdls8=
+github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
+github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/aymanbagabas/go-udiff v0.2.0 h1:TK0fH4MteXUDspT88n8CKzvK0X9O2xu9yQjWpi6yML8=
+github.com/aymanbagabas/go-udiff v0.2.0/go.mod h1:RE4Ex0qsGkTAJoQdQQCA0uG+nAzJO/pI/QwceO5fgrA=
+github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
+github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/bmatcuk/doublestar v1.1.1/go.mod h1:UD6OnuiIn0yFxxA2le/rnRU1G4RaI4UvFv1sNto9p6w=
+github.com/bmatcuk/doublestar/v4 v4.8.1 h1:54Bopc5c2cAvhLRAzqOGCYHYyhcDHsFF4wWIR5wKP38=
+github.com/bmatcuk/doublestar/v4 v4.8.1/go.mod h1:xBQ8jztBU6kakFMg+8WGxn0c6z1fTSPVIjEY1Wr7jzc=
+github.com/catppuccin/go v0.3.0 h1:d+0/YicIq+hSTo5oPuRi5kOpqkVA5tAsU6dNhvRu+aY=
+github.com/catppuccin/go v0.3.0/go.mod h1:8IHJuMGaUUjQM82qBrGNBv7LFq6JI3NnQCF6MOlZjpc=
+github.com/charmbracelet/bubbles v0.21.0 h1:9TdC97SdRVg/1aaXNVWfFH3nnLAwOXr8Fn6u6mfQdFs=
+github.com/charmbracelet/bubbles v0.21.0/go.mod h1:HF+v6QUR4HkEpz62dx7ym2xc71/KBHg+zKwJtMw+qtg=
+github.com/charmbracelet/bubbletea v1.3.4 h1:kCg7B+jSCFPLYRA52SDZjr51kG/fMUEoPoZrkaDHyoI=
+github.com/charmbracelet/bubbletea v1.3.4/go.mod h1:dtcUCyCGEX3g9tosuYiut3MXgY/Jsv9nKVdibKKRRXo=
+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc h1:4pZI35227imm7yK2bGPcfpFEmuY1gc2YSTShr4iJBfs=
+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk=
+github.com/charmbracelet/glamour v0.9.1 h1:11dEfiGP8q1BEqvGoIjivuc2rBk+5qEXdPtaQ2WoiCM=
+github.com/charmbracelet/glamour v0.9.1/go.mod h1:+SHvIS8qnwhgTpVMiXwn7OfGomSqff1cHBCI8jLOetk=
+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
+github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
+github.com/charmbracelet/x/ansi v0.8.0 h1:9GTq3xq9caJW8ZrBTe0LIe2fvfLR/bYXKTx2llXn7xE=
+github.com/charmbracelet/x/ansi v0.8.0/go.mod h1:wdYl/ONOLHLIVmQaxbIYEC/cRKOQyjTkowiI4blgS9Q=
+github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd h1:vy0GVL4jeHEwG5YOXDmi86oYw2yuYUGqz6a8sLwg0X8=
+github.com/charmbracelet/x/cellbuf v0.0.13-0.20250311204145-2c3ea96c31dd/go.mod h1:xe0nKWGd3eJgtqZRaN9RjMtK7xUYchjzPr7q6kcvCCs=
+github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91 h1:payRxjMjKgx2PaCWLZ4p3ro9y97+TVLZNaRZgJwSVDQ=
+github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91/go.mod h1:wDlXFlCrmJ8J+swcL/MnGUuYnqgQdW9rhSD61oNMb6U=
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+github.com/charmbracelet/x/term v0.2.1/go.mod h1:oQ4enTYFV7QN4m0i9mzHrViD7TQKvNEEkHUMCmsxdUg=
+github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
+github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
+github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
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+github.com/dlclark/regexp2 v1.11.4 h1:rPYF9/LECdNymJufQKmri9gV604RvvABwgOA8un7yAo=
+github.com/dlclark/regexp2 v1.11.4/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
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+github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
+github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=
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+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.0-20191026110619-0b21df46bc1d/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+rsc.io/qr v0.2.0 h1:6vBLea5/NRMVTz8V66gipeLycZMl/+UlFmk8DvqQ6WY=
+rsc.io/qr v0.2.0/go.mod h1:IF+uZjkb9fqyeF/4tlBoynqmQxUoPfWEKh921coOuXs=

packages/tui/internal/completions/files-folders.go

@@ -0,0 +1,191 @@
+package completions
+
+import (
+	"bytes"
+	"fmt"
+	"os/exec"
+	"path/filepath"
+
+	"github.com/lithammer/fuzzysearch/fuzzy"
+	"github.com/sst/opencode/internal/fileutil"
+	"github.com/sst/opencode/internal/status"
+	"github.com/sst/opencode/internal/tui/components/dialog"
+)
+
+type filesAndFoldersContextGroup struct {
+	prefix string
+}
+
+func (cg *filesAndFoldersContextGroup) GetId() string {
+	return cg.prefix
+}
+
+func (cg *filesAndFoldersContextGroup) GetEntry() dialog.CompletionItemI {
+	return dialog.NewCompletionItem(dialog.CompletionItem{
+		Title: "Files & Folders",
+		Value: "files",
+	})
+}
+
+func processNullTerminatedOutput(outputBytes []byte) []string {
+	if len(outputBytes) > 0 && outputBytes[len(outputBytes)-1] == 0 {
+		outputBytes = outputBytes[:len(outputBytes)-1]
+	}
+
+	if len(outputBytes) == 0 {
+		return []string{}
+	}
+
+	split := bytes.Split(outputBytes, []byte{0})
+	matches := make([]string, 0, len(split))
+
+	for _, p := range split {
+		if len(p) == 0 {
+			continue
+		}
+
+		path := string(p)
+		path = filepath.Join(".", path)
+
+		if !fileutil.SkipHidden(path) {
+			matches = append(matches, path)
+		}
+	}
+
+	return matches
+}
+
+func (cg *filesAndFoldersContextGroup) getFiles(query string) ([]string, error) {
+	cmdRg := fileutil.GetRgCmd("") // No glob pattern for this use case
+	cmdFzf := fileutil.GetFzfCmd(query)
+
+	var matches []string
+	// Case 1: Both rg and fzf available
+	if cmdRg != nil && cmdFzf != nil {
+		rgPipe, err := cmdRg.StdoutPipe()
+		if err != nil {
+			return nil, fmt.Errorf("failed to get rg stdout pipe: %w", err)
+		}
+		defer rgPipe.Close()
+
+		cmdFzf.Stdin = rgPipe
+		var fzfOut bytes.Buffer
+		var fzfErr bytes.Buffer
+		cmdFzf.Stdout = &fzfOut
+		cmdFzf.Stderr = &fzfErr
+
+		if err := cmdFzf.Start(); err != nil {
+			return nil, fmt.Errorf("failed to start fzf: %w", err)
+		}
+
+		errRg := cmdRg.Run()
+		errFzf := cmdFzf.Wait()
+
+		if errRg != nil {
+			status.Warn(fmt.Sprintf("rg command failed during pipe: %v", errRg))
+		}
+
+		if errFzf != nil {
+			if exitErr, ok := errFzf.(*exec.ExitError); ok && exitErr.ExitCode() == 1 {
+				return []string{}, nil // No matches from fzf
+			}
+			return nil, fmt.Errorf("fzf command failed: %w\nStderr: %s", errFzf, fzfErr.String())
+		}
+
+		matches = processNullTerminatedOutput(fzfOut.Bytes())
+
+		// Case 2: Only rg available
+	} else if cmdRg != nil {
+		status.Debug("Using Ripgrep with fuzzy match fallback for file completions")
+		var rgOut bytes.Buffer
+		var rgErr bytes.Buffer
+		cmdRg.Stdout = &rgOut
+		cmdRg.Stderr = &rgErr
+
+		if err := cmdRg.Run(); err != nil {
+			return nil, fmt.Errorf("rg command failed: %w\nStderr: %s", err, rgErr.String())
+		}
+
+		allFiles := processNullTerminatedOutput(rgOut.Bytes())
+		matches = fuzzy.Find(query, allFiles)
+
+		// Case 3: Only fzf available
+	} else if cmdFzf != nil {
+		status.Debug("Using FZF with doublestar fallback for file completions")
+		files, _, err := fileutil.GlobWithDoublestar("**/*", ".", 0)
+		if err != nil {
+			return nil, fmt.Errorf("failed to list files for fzf: %w", err)
+		}
+
+		allFiles := make([]string, 0, len(files))
+		for _, file := range files {
+			if !fileutil.SkipHidden(file) {
+				allFiles = append(allFiles, file)
+			}
+		}
+
+		var fzfIn bytes.Buffer
+		for _, file := range allFiles {
+			fzfIn.WriteString(file)
+			fzfIn.WriteByte(0)
+		}
+
+		cmdFzf.Stdin = &fzfIn
+		var fzfOut bytes.Buffer
+		var fzfErr bytes.Buffer
+		cmdFzf.Stdout = &fzfOut
+		cmdFzf.Stderr = &fzfErr
+
+		if err := cmdFzf.Run(); err != nil {
+			if exitErr, ok := err.(*exec.ExitError); ok && exitErr.ExitCode() == 1 {
+				return []string{}, nil
+			}
+			return nil, fmt.Errorf("fzf command failed: %w\nStderr: %s", err, fzfErr.String())
+		}
+
+		matches = processNullTerminatedOutput(fzfOut.Bytes())
+
+		// Case 4: Fallback to doublestar with fuzzy match
+	} else {
+		status.Debug("Using doublestar with fuzzy match for file completions")
+		allFiles, _, err := fileutil.GlobWithDoublestar("**/*", ".", 0)
+		if err != nil {
+			return nil, fmt.Errorf("failed to glob files: %w", err)
+		}
+
+		filteredFiles := make([]string, 0, len(allFiles))
+		for _, file := range allFiles {
+			if !fileutil.SkipHidden(file) {
+				filteredFiles = append(filteredFiles, file)
+			}
+		}
+
+		matches = fuzzy.Find(query, filteredFiles)
+	}
+
+	return matches, nil
+}
+
+func (cg *filesAndFoldersContextGroup) GetChildEntries(query string) ([]dialog.CompletionItemI, error) {
+	matches, err := cg.getFiles(query)
+	if err != nil {
+		return nil, err
+	}
+
+	items := make([]dialog.CompletionItemI, 0, len(matches))
+	for _, file := range matches {
+		item := dialog.NewCompletionItem(dialog.CompletionItem{
+			Title: file,
+			Value: file,
+		})
+		items = append(items, item)
+	}
+
+	return items, nil
+}
+
+func NewFileAndFolderContextGroup() dialog.CompletionProvider {
+	return &filesAndFoldersContextGroup{
+		prefix: "file",
+	}
+}

packages/tui/internal/config/config.go

@@ -0,0 +1,266 @@
+// Package config manages application configuration from various sources.
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"os"
+	"os/user"
+	"path/filepath"
+	"strings"
+
+	"github.com/spf13/viper"
+)
+
+// Data defines storage configuration.
+type Data struct {
+	Directory string `json:"directory,omitempty"`
+}
+
+// TUIConfig defines the configuration for the Terminal User Interface.
+type TUIConfig struct {
+	Theme       string         `json:"theme,omitempty"`
+	CustomTheme map[string]any `json:"customTheme,omitempty"`
+}
+
+// ShellConfig defines the configuration for the shell used by the bash tool.
+type ShellConfig struct {
+	Path string   `json:"path,omitempty"`
+	Args []string `json:"args,omitempty"`
+}
+
+// Config is the main configuration structure for the application.
+type Config struct {
+	Data         Data        `json:"data"`
+	WorkingDir   string      `json:"wd,omitempty"`
+	Debug        bool        `json:"debug,omitempty"`
+	DebugLSP     bool        `json:"debugLSP,omitempty"`
+	ContextPaths []string    `json:"contextPaths,omitempty"`
+	TUI          TUIConfig   `json:"tui"`
+	Shell        ShellConfig `json:"shell,omitempty"`
+}
+
+// Application constants
+const (
+	defaultDataDirectory = ".opencode"
+	defaultLogLevel      = "info"
+	appName              = "opencode"
+
+	MaxTokensFallbackDefault = 4096
+)
+
+var defaultContextPaths = []string{
+	".github/copilot-instructions.md",
+	".cursorrules",
+	".cursor/rules/",
+	"CLAUDE.md",
+	"CLAUDE.local.md",
+	"CONTEXT.md",
+	"CONTEXT.local.md",
+	"opencode.md",
+	"opencode.local.md",
+	"OpenCode.md",
+	"OpenCode.local.md",
+	"OPENCODE.md",
+	"OPENCODE.local.md",
+}
+
+// Global configuration instance
+var cfg *Config
+
+// Load initializes the configuration from environment variables and config files.
+// If debug is true, debug mode is enabled and log level is set to debug.
+// It returns an error if configuration loading fails.
+func Load(workingDir string, debug bool) (*Config, error) {
+	if cfg != nil {
+		return cfg, nil
+	}
+
+	cfg = &Config{
+		WorkingDir: workingDir,
+	}
+
+	configureViper()
+	setDefaults(debug)
+
+	// Read global config
+	if err := readConfig(viper.ReadInConfig()); err != nil {
+		return cfg, err
+	}
+
+	// Load and merge local config
+	mergeLocalConfig(workingDir)
+
+	// Apply configuration to the struct
+	if err := viper.Unmarshal(cfg); err != nil {
+		return cfg, fmt.Errorf("failed to unmarshal config: %w", err)
+	}
+
+	defaultLevel := slog.LevelInfo
+	if cfg.Debug {
+		defaultLevel = slog.LevelDebug
+	}
+	slog.SetLogLoggerLevel(defaultLevel)
+
+	// Validate configuration
+	if err := Validate(); err != nil {
+		return cfg, fmt.Errorf("config validation failed: %w", err)
+	}
+	return cfg, nil
+}
+
+// configureViper sets up viper's configuration paths and environment variables.
+func configureViper() {
+	viper.SetConfigName(fmt.Sprintf(".%s", appName))
+	viper.SetConfigType("json")
+	viper.AddConfigPath("$HOME")
+	viper.AddConfigPath(fmt.Sprintf("$XDG_CONFIG_HOME/%s", appName))
+	viper.AddConfigPath(fmt.Sprintf("$HOME/.config/%s", appName))
+	viper.SetEnvPrefix(strings.ToUpper(appName))
+	viper.AutomaticEnv()
+}
+
+// setDefaults configures default values for configuration options.
+func setDefaults(debug bool) {
+	viper.SetDefault("data.directory", defaultDataDirectory)
+	viper.SetDefault("contextPaths", defaultContextPaths)
+	viper.SetDefault("tui.theme", "opencode")
+
+	if debug {
+		viper.SetDefault("debug", true)
+		viper.Set("log.level", "debug")
+	} else {
+		viper.SetDefault("debug", false)
+		viper.SetDefault("log.level", defaultLogLevel)
+	}
+}
+
+// readConfig handles the result of reading a configuration file.
+func readConfig(err error) error {
+	if err == nil {
+		return nil
+	}
+
+	// It's okay if the config file doesn't exist
+	if _, ok := err.(viper.ConfigFileNotFoundError); ok {
+		return nil
+	}
+
+	return fmt.Errorf("failed to read config: %w", err)
+}
+
+// mergeLocalConfig loads and merges configuration from the local directory.
+func mergeLocalConfig(workingDir string) {
+	local := viper.New()
+	local.SetConfigName(fmt.Sprintf(".%s", appName))
+	local.SetConfigType("json")
+	local.AddConfigPath(workingDir)
+
+	// Merge local config if it exists
+	if err := local.ReadInConfig(); err == nil {
+		viper.MergeConfigMap(local.AllSettings())
+	}
+}
+
+// Validate checks if the configuration is valid and applies defaults where needed.
+func Validate() error {
+	if cfg == nil {
+		return fmt.Errorf("config not loaded")
+	}
+
+	return nil
+}
+
+// Get returns the current configuration.
+// It's safe to call this function multiple times.
+func Get() *Config {
+	return cfg
+}
+
+// WorkingDirectory returns the current working directory from the configuration.
+func WorkingDirectory() string {
+	if cfg == nil {
+		panic("config not loaded")
+	}
+	return cfg.WorkingDir
+}
+
+// GetHostname returns the system hostname or "User" if it can't be determined
+func GetHostname() (string, error) {
+	hostname, err := os.Hostname()
+	if err != nil {
+		return "User", err
+	}
+	return hostname, nil
+}
+
+// GetUsername returns the current user's username
+func GetUsername() (string, error) {
+	currentUser, err := user.Current()
+	if err != nil {
+		return "User", err
+	}
+	return currentUser.Username, nil
+}
+
+func updateCfgFile(updateCfg func(config *Config)) error {
+	if cfg == nil {
+		return fmt.Errorf("config not loaded")
+	}
+
+	// Get the config file path
+	configFile := viper.ConfigFileUsed()
+	var configData []byte
+	if configFile == "" {
+		homeDir, err := os.UserHomeDir()
+		if err != nil {
+			return fmt.Errorf("failed to get home directory: %w", err)
+		}
+		configFile = filepath.Join(homeDir, fmt.Sprintf(".%s.json", appName))
+		slog.Info("config file not found, creating new one", "path", configFile)
+		configData = []byte(`{}`)
+	} else {
+		// Read the existing config file
+		data, err := os.ReadFile(configFile)
+		if err != nil {
+			return fmt.Errorf("failed to read config file: %w", err)
+		}
+		configData = data
+	}
+
+	// Parse the JSON
+	var userCfg *Config
+	if err := json.Unmarshal(configData, &userCfg); err != nil {
+		return fmt.Errorf("failed to parse config file: %w", err)
+	}
+
+	updateCfg(userCfg)
+
+	// Write the updated config back to file
+	updatedData, err := json.MarshalIndent(userCfg, "", "  ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal config: %w", err)
+	}
+
+	if err := os.WriteFile(configFile, updatedData, 0o644); err != nil {
+		return fmt.Errorf("failed to write config file: %w", err)
+	}
+
+	return nil
+}
+
+// UpdateTheme updates the theme in the configuration and writes it to the config file.
+func UpdateTheme(themeName string) error {
+	if cfg == nil {
+		return fmt.Errorf("config not loaded")
+	}
+
+	// Update the in-memory config
+	cfg.TUI.Theme = themeName
+
+	// Update the file config
+	return updateCfgFile(func(config *Config) {
+		config.TUI.Theme = themeName
+	})
+}

packages/tui/internal/config/init.go

@@ -0,0 +1,60 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+)
+
+const (
+	// InitFlagFilename is the name of the file that indicates whether the project has been initialized
+	InitFlagFilename = "init"
+)
+
+// ProjectInitFlag represents the initialization status for a project directory
+type ProjectInitFlag struct {
+	Initialized bool `json:"initialized"`
+}
+
+// ShouldShowInitDialog checks if the initialization dialog should be shown for the current directory
+func ShouldShowInitDialog() (bool, error) {
+	if cfg == nil {
+		return false, fmt.Errorf("config not loaded")
+	}
+
+	// Create the flag file path
+	flagFilePath := filepath.Join(cfg.Data.Directory, InitFlagFilename)
+
+	// Check if the flag file exists
+	_, err := os.Stat(flagFilePath)
+	if err == nil {
+		// File exists, don't show the dialog
+		return false, nil
+	}
+
+	// If the error is not "file not found", return the error
+	if !os.IsNotExist(err) {
+		return false, fmt.Errorf("failed to check init flag file: %w", err)
+	}
+
+	// File doesn't exist, show the dialog
+	return true, nil
+}
+
+// MarkProjectInitialized marks the current project as initialized
+func MarkProjectInitialized() error {
+	if cfg == nil {
+		return fmt.Errorf("config not loaded")
+	}
+	// Create the flag file path
+	flagFilePath := filepath.Join(cfg.Data.Directory, InitFlagFilename)
+
+	// Create an empty file to mark the project as initialized
+	file, err := os.Create(flagFilePath)
+	if err != nil {
+		return fmt.Errorf("failed to create init flag file: %w", err)
+	}
+	defer file.Close()
+
+	return nil
+}

packages/tui/internal/diff/diff.go

@@ -0,0 +1,869 @@
+package diff
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/alecthomas/chroma/v2"
+	"github.com/alecthomas/chroma/v2/formatters"
+	"github.com/alecthomas/chroma/v2/lexers"
+	"github.com/alecthomas/chroma/v2/styles"
+	"github.com/aymanbagabas/go-udiff"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/x/ansi"
+	"github.com/sergi/go-diff/diffmatchpatch"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/tui/theme"
+)
+
+// -------------------------------------------------------------------------
+// Core Types
+// -------------------------------------------------------------------------
+
+// LineType represents the kind of line in a diff.
+type LineType int
+
+const (
+	LineContext LineType = iota // Line exists in both files
+	LineAdded                   // Line added in the new file
+	LineRemoved                 // Line removed from the old file
+)
+
+// Segment represents a portion of a line for intra-line highlighting
+type Segment struct {
+	Start int
+	End   int
+	Type  LineType
+	Text  string
+}
+
+// DiffLine represents a single line in a diff
+type DiffLine struct {
+	OldLineNo int       // Line number in old file (0 for added lines)
+	NewLineNo int       // Line number in new file (0 for removed lines)
+	Kind      LineType  // Type of line (added, removed, context)
+	Content   string    // Content of the line
+	Segments  []Segment // Segments for intraline highlighting
+}
+
+// Hunk represents a section of changes in a diff
+type Hunk struct {
+	Header string
+	Lines  []DiffLine
+}
+
+// DiffResult contains the parsed result of a diff
+type DiffResult struct {
+	OldFile string
+	NewFile string
+	Hunks   []Hunk
+}
+
+// linePair represents a pair of lines for side-by-side display
+type linePair struct {
+	left  *DiffLine
+	right *DiffLine
+}
+
+// -------------------------------------------------------------------------
+// Parse Configuration
+// -------------------------------------------------------------------------
+
+// ParseConfig configures the behavior of diff parsing
+type ParseConfig struct {
+	ContextSize int // Number of context lines to include
+}
+
+// ParseOption modifies a ParseConfig
+type ParseOption func(*ParseConfig)
+
+// WithContextSize sets the number of context lines to include
+func WithContextSize(size int) ParseOption {
+	return func(p *ParseConfig) {
+		if size >= 0 {
+			p.ContextSize = size
+		}
+	}
+}
+
+// -------------------------------------------------------------------------
+// Side-by-Side Configuration
+// -------------------------------------------------------------------------
+
+// SideBySideConfig configures the rendering of side-by-side diffs
+type SideBySideConfig struct {
+	TotalWidth int
+}
+
+// SideBySideOption modifies a SideBySideConfig
+type SideBySideOption func(*SideBySideConfig)
+
+// NewSideBySideConfig creates a SideBySideConfig with default values
+func NewSideBySideConfig(opts ...SideBySideOption) SideBySideConfig {
+	config := SideBySideConfig{
+		TotalWidth: 160, // Default width for side-by-side view
+	}
+
+	for _, opt := range opts {
+		opt(&config)
+	}
+
+	return config
+}
+
+// WithTotalWidth sets the total width for side-by-side view
+func WithTotalWidth(width int) SideBySideOption {
+	return func(s *SideBySideConfig) {
+		if width > 0 {
+			s.TotalWidth = width
+		}
+	}
+}
+
+// -------------------------------------------------------------------------
+// Diff Parsing
+// -------------------------------------------------------------------------
+
+// ParseUnifiedDiff parses a unified diff format string into structured data
+func ParseUnifiedDiff(diff string) (DiffResult, error) {
+	var result DiffResult
+	var currentHunk *Hunk
+
+	hunkHeaderRe := regexp.MustCompile(`^@@ -(\d+),?(\d*) \+(\d+),?(\d*) @@`)
+	lines := strings.Split(diff, "\n")
+
+	var oldLine, newLine int
+	inFileHeader := true
+
+	for _, line := range lines {
+		// Parse file headers
+		if inFileHeader {
+			if strings.HasPrefix(line, "--- a/") {
+				result.OldFile = strings.TrimPrefix(line, "--- a/")
+				continue
+			}
+			if strings.HasPrefix(line, "+++ b/") {
+				result.NewFile = strings.TrimPrefix(line, "+++ b/")
+				inFileHeader = false
+				continue
+			}
+		}
+
+		// Parse hunk headers
+		if matches := hunkHeaderRe.FindStringSubmatch(line); matches != nil {
+			if currentHunk != nil {
+				result.Hunks = append(result.Hunks, *currentHunk)
+			}
+			currentHunk = &Hunk{
+				Header: line,
+				Lines:  []DiffLine{},
+			}
+
+			oldStart, _ := strconv.Atoi(matches[1])
+			newStart, _ := strconv.Atoi(matches[3])
+			oldLine = oldStart
+			newLine = newStart
+			continue
+		}
+
+		// Ignore "No newline at end of file" markers
+		if strings.HasPrefix(line, "\\ No newline at end of file") {
+			continue
+		}
+
+		if currentHunk == nil {
+			continue
+		}
+
+		// Process the line based on its prefix
+		if len(line) > 0 {
+			switch line[0] {
+			case '+':
+				currentHunk.Lines = append(currentHunk.Lines, DiffLine{
+					OldLineNo: 0,
+					NewLineNo: newLine,
+					Kind:      LineAdded,
+					Content:   line[1:],
+				})
+				newLine++
+			case '-':
+				currentHunk.Lines = append(currentHunk.Lines, DiffLine{
+					OldLineNo: oldLine,
+					NewLineNo: 0,
+					Kind:      LineRemoved,
+					Content:   line[1:],
+				})
+				oldLine++
+			default:
+				currentHunk.Lines = append(currentHunk.Lines, DiffLine{
+					OldLineNo: oldLine,
+					NewLineNo: newLine,
+					Kind:      LineContext,
+					Content:   line,
+				})
+				oldLine++
+				newLine++
+			}
+		} else {
+			// Handle empty lines
+			currentHunk.Lines = append(currentHunk.Lines, DiffLine{
+				OldLineNo: oldLine,
+				NewLineNo: newLine,
+				Kind:      LineContext,
+				Content:   "",
+			})
+			oldLine++
+			newLine++
+		}
+	}
+
+	// Add the last hunk if there is one
+	if currentHunk != nil {
+		result.Hunks = append(result.Hunks, *currentHunk)
+	}
+
+	return result, nil
+}
+
+// HighlightIntralineChanges updates lines in a hunk to show character-level differences
+func HighlightIntralineChanges(h *Hunk) {
+	var updated []DiffLine
+	dmp := diffmatchpatch.New()
+
+	for i := 0; i < len(h.Lines); i++ {
+		// Look for removed line followed by added line
+		if i+1 < len(h.Lines) &&
+			h.Lines[i].Kind == LineRemoved &&
+			h.Lines[i+1].Kind == LineAdded {
+
+			oldLine := h.Lines[i]
+			newLine := h.Lines[i+1]
+
+			// Find character-level differences
+			patches := dmp.DiffMain(oldLine.Content, newLine.Content, false)
+			patches = dmp.DiffCleanupSemantic(patches)
+			patches = dmp.DiffCleanupMerge(patches)
+			patches = dmp.DiffCleanupEfficiency(patches)
+
+			segments := make([]Segment, 0)
+
+			removeStart := 0
+			addStart := 0
+			for _, patch := range patches {
+				switch patch.Type {
+				case diffmatchpatch.DiffDelete:
+					segments = append(segments, Segment{
+						Start: removeStart,
+						End:   removeStart + len(patch.Text),
+						Type:  LineRemoved,
+						Text:  patch.Text,
+					})
+					removeStart += len(patch.Text)
+				case diffmatchpatch.DiffInsert:
+					segments = append(segments, Segment{
+						Start: addStart,
+						End:   addStart + len(patch.Text),
+						Type:  LineAdded,
+						Text:  patch.Text,
+					})
+					addStart += len(patch.Text)
+				default:
+					// Context text, no highlighting needed
+					removeStart += len(patch.Text)
+					addStart += len(patch.Text)
+				}
+			}
+			oldLine.Segments = segments
+			newLine.Segments = segments
+
+			updated = append(updated, oldLine, newLine)
+			i++ // Skip the next line as we've already processed it
+		} else {
+			updated = append(updated, h.Lines[i])
+		}
+	}
+
+	h.Lines = updated
+}
+
+// pairLines converts a flat list of diff lines to pairs for side-by-side display
+func pairLines(lines []DiffLine) []linePair {
+	var pairs []linePair
+	i := 0
+
+	for i < len(lines) {
+		switch lines[i].Kind {
+		case LineRemoved:
+			// Check if the next line is an addition, if so pair them
+			if i+1 < len(lines) && lines[i+1].Kind == LineAdded {
+				pairs = append(pairs, linePair{left: &lines[i], right: &lines[i+1]})
+				i += 2
+			} else {
+				pairs = append(pairs, linePair{left: &lines[i], right: nil})
+				i++
+			}
+		case LineAdded:
+			pairs = append(pairs, linePair{left: nil, right: &lines[i]})
+			i++
+		case LineContext:
+			pairs = append(pairs, linePair{left: &lines[i], right: &lines[i]})
+			i++
+		}
+	}
+
+	return pairs
+}
+
+// -------------------------------------------------------------------------
+// Syntax Highlighting
+// -------------------------------------------------------------------------
+
+// SyntaxHighlight applies syntax highlighting to text based on file extension
+func SyntaxHighlight(w io.Writer, source, fileName, formatter string, bg lipgloss.TerminalColor) error {
+	t := theme.CurrentTheme()
+
+	// Determine the language lexer to use
+	l := lexers.Match(fileName)
+	if l == nil {
+		l = lexers.Analyse(source)
+	}
+	if l == nil {
+		l = lexers.Fallback
+	}
+	l = chroma.Coalesce(l)
+
+	// Get the formatter
+	f := formatters.Get(formatter)
+	if f == nil {
+		f = formatters.Fallback
+	}
+
+	// Dynamic theme based on current theme values
+	syntaxThemeXml := fmt.Sprintf(`
+	<style name="opencode-theme">
+	<!-- Base colors -->
+	<entry type="Background" style="bg:%s"/>
+	<entry type="Text" style="%s"/>
+	<entry type="Other" style="%s"/>
+	<entry type="Error" style="%s"/>
+	<!-- Keywords -->
+	<entry type="Keyword" style="%s"/>
+	<entry type="KeywordConstant" style="%s"/>
+	<entry type="KeywordDeclaration" style="%s"/>
+	<entry type="KeywordNamespace" style="%s"/>
+	<entry type="KeywordPseudo" style="%s"/>
+	<entry type="KeywordReserved" style="%s"/>
+	<entry type="KeywordType" style="%s"/>
+	<!-- Names -->
+	<entry type="Name" style="%s"/>
+	<entry type="NameAttribute" style="%s"/>
+	<entry type="NameBuiltin" style="%s"/>
+	<entry type="NameBuiltinPseudo" style="%s"/>
+	<entry type="NameClass" style="%s"/>
+	<entry type="NameConstant" style="%s"/>
+	<entry type="NameDecorator" style="%s"/>
+	<entry type="NameEntity" style="%s"/>
+	<entry type="NameException" style="%s"/>
+	<entry type="NameFunction" style="%s"/>
+	<entry type="NameLabel" style="%s"/>
+	<entry type="NameNamespace" style="%s"/>
+	<entry type="NameOther" style="%s"/>
+	<entry type="NameTag" style="%s"/>
+	<entry type="NameVariable" style="%s"/>
+	<entry type="NameVariableClass" style="%s"/>
+	<entry type="NameVariableGlobal" style="%s"/>
+	<entry type="NameVariableInstance" style="%s"/>
+	<!-- Literals -->
+	<entry type="Literal" style="%s"/>
+	<entry type="LiteralDate" style="%s"/>
+	<entry type="LiteralString" style="%s"/>
+	<entry type="LiteralStringBacktick" style="%s"/>
+	<entry type="LiteralStringChar" style="%s"/>
+	<entry type="LiteralStringDoc" style="%s"/>
+	<entry type="LiteralStringDouble" style="%s"/>
+	<entry type="LiteralStringEscape" style="%s"/>
+	<entry type="LiteralStringHeredoc" style="%s"/>
+	<entry type="LiteralStringInterpol" style="%s"/>
+	<entry type="LiteralStringOther" style="%s"/>
+	<entry type="LiteralStringRegex" style="%s"/>
+	<entry type="LiteralStringSingle" style="%s"/>
+	<entry type="LiteralStringSymbol" style="%s"/>
+	<!-- Numbers -->
+	<entry type="LiteralNumber" style="%s"/>
+	<entry type="LiteralNumberBin" style="%s"/>
+	<entry type="LiteralNumberFloat" style="%s"/>
+	<entry type="LiteralNumberHex" style="%s"/>
+	<entry type="LiteralNumberInteger" style="%s"/>
+	<entry type="LiteralNumberIntegerLong" style="%s"/>
+	<entry type="LiteralNumberOct" style="%s"/>
+	<!-- Operators -->
+	<entry type="Operator" style="%s"/>
+	<entry type="OperatorWord" style="%s"/>
+	<entry type="Punctuation" style="%s"/>
+	<!-- Comments -->
+	<entry type="Comment" style="%s"/>
+	<entry type="CommentHashbang" style="%s"/>
+	<entry type="CommentMultiline" style="%s"/>
+	<entry type="CommentSingle" style="%s"/>
+	<entry type="CommentSpecial" style="%s"/>
+	<entry type="CommentPreproc" style="%s"/>
+	<!-- Generic styles -->
+	<entry type="Generic" style="%s"/>
+	<entry type="GenericDeleted" style="%s"/>
+	<entry type="GenericEmph" style="italic %s"/>
+	<entry type="GenericError" style="%s"/>
+	<entry type="GenericHeading" style="bold %s"/>
+	<entry type="GenericInserted" style="%s"/>
+	<entry type="GenericOutput" style="%s"/>
+	<entry type="GenericPrompt" style="%s"/>
+	<entry type="GenericStrong" style="bold %s"/>
+	<entry type="GenericSubheading" style="bold %s"/>
+	<entry type="GenericTraceback" style="%s"/>
+	<entry type="GenericUnderline" style="underline"/>
+	<entry type="TextWhitespace" style="%s"/>
+</style>
+`,
+		getColor(t.Background()), // Background
+		getColor(t.Text()),       // Text
+		getColor(t.Text()),       // Other
+		getColor(t.Error()),      // Error
+
+		getColor(t.SyntaxKeyword()), // Keyword
+		getColor(t.SyntaxKeyword()), // KeywordConstant
+		getColor(t.SyntaxKeyword()), // KeywordDeclaration
+		getColor(t.SyntaxKeyword()), // KeywordNamespace
+		getColor(t.SyntaxKeyword()), // KeywordPseudo
+		getColor(t.SyntaxKeyword()), // KeywordReserved
+		getColor(t.SyntaxType()),    // KeywordType
+
+		getColor(t.Text()),           // Name
+		getColor(t.SyntaxVariable()), // NameAttribute
+		getColor(t.SyntaxType()),     // NameBuiltin
+		getColor(t.SyntaxVariable()), // NameBuiltinPseudo
+		getColor(t.SyntaxType()),     // NameClass
+		getColor(t.SyntaxVariable()), // NameConstant
+		getColor(t.SyntaxFunction()), // NameDecorator
+		getColor(t.SyntaxVariable()), // NameEntity
+		getColor(t.SyntaxType()),     // NameException
+		getColor(t.SyntaxFunction()), // NameFunction
+		getColor(t.Text()),           // NameLabel
+		getColor(t.SyntaxType()),     // NameNamespace
+		getColor(t.SyntaxVariable()), // NameOther
+		getColor(t.SyntaxKeyword()),  // NameTag
+		getColor(t.SyntaxVariable()), // NameVariable
+		getColor(t.SyntaxVariable()), // NameVariableClass
+		getColor(t.SyntaxVariable()), // NameVariableGlobal
+		getColor(t.SyntaxVariable()), // NameVariableInstance
+
+		getColor(t.SyntaxString()), // Literal
+		getColor(t.SyntaxString()), // LiteralDate
+		getColor(t.SyntaxString()), // LiteralString
+		getColor(t.SyntaxString()), // LiteralStringBacktick
+		getColor(t.SyntaxString()), // LiteralStringChar
+		getColor(t.SyntaxString()), // LiteralStringDoc
+		getColor(t.SyntaxString()), // LiteralStringDouble
+		getColor(t.SyntaxString()), // LiteralStringEscape
+		getColor(t.SyntaxString()), // LiteralStringHeredoc
+		getColor(t.SyntaxString()), // LiteralStringInterpol
+		getColor(t.SyntaxString()), // LiteralStringOther
+		getColor(t.SyntaxString()), // LiteralStringRegex
+		getColor(t.SyntaxString()), // LiteralStringSingle
+		getColor(t.SyntaxString()), // LiteralStringSymbol
+
+		getColor(t.SyntaxNumber()), // LiteralNumber
+		getColor(t.SyntaxNumber()), // LiteralNumberBin
+		getColor(t.SyntaxNumber()), // LiteralNumberFloat
+		getColor(t.SyntaxNumber()), // LiteralNumberHex
+		getColor(t.SyntaxNumber()), // LiteralNumberInteger
+		getColor(t.SyntaxNumber()), // LiteralNumberIntegerLong
+		getColor(t.SyntaxNumber()), // LiteralNumberOct
+
+		getColor(t.SyntaxOperator()),    // Operator
+		getColor(t.SyntaxKeyword()),     // OperatorWord
+		getColor(t.SyntaxPunctuation()), // Punctuation
+
+		getColor(t.SyntaxComment()), // Comment
+		getColor(t.SyntaxComment()), // CommentHashbang
+		getColor(t.SyntaxComment()), // CommentMultiline
+		getColor(t.SyntaxComment()), // CommentSingle
+		getColor(t.SyntaxComment()), // CommentSpecial
+		getColor(t.SyntaxKeyword()), // CommentPreproc
+
+		getColor(t.Text()),      // Generic
+		getColor(t.Error()),     // GenericDeleted
+		getColor(t.Text()),      // GenericEmph
+		getColor(t.Error()),     // GenericError
+		getColor(t.Text()),      // GenericHeading
+		getColor(t.Success()),   // GenericInserted
+		getColor(t.TextMuted()), // GenericOutput
+		getColor(t.Text()),      // GenericPrompt
+		getColor(t.Text()),      // GenericStrong
+		getColor(t.Text()),      // GenericSubheading
+		getColor(t.Error()),     // GenericTraceback
+		getColor(t.Text()),      // TextWhitespace
+	)
+
+	r := strings.NewReader(syntaxThemeXml)
+	style := chroma.MustNewXMLStyle(r)
+
+	// Modify the style to use the provided background
+	s, err := style.Builder().Transform(
+		func(t chroma.StyleEntry) chroma.StyleEntry {
+			r, g, b, _ := bg.RGBA()
+			t.Background = chroma.NewColour(uint8(r>>8), uint8(g>>8), uint8(b>>8))
+			return t
+		},
+	).Build()
+	if err != nil {
+		s = styles.Fallback
+	}
+
+	// Tokenize and format
+	it, err := l.Tokenise(nil, source)
+	if err != nil {
+		return err
+	}
+
+	return f.Format(w, s, it)
+}
+
+// getColor returns the appropriate hex color string based on terminal background
+func getColor(adaptiveColor lipgloss.AdaptiveColor) string {
+	if lipgloss.HasDarkBackground() {
+		return adaptiveColor.Dark
+	}
+	return adaptiveColor.Light
+}
+
+// highlightLine applies syntax highlighting to a single line
+func highlightLine(fileName string, line string, bg lipgloss.TerminalColor) string {
+	var buf bytes.Buffer
+	err := SyntaxHighlight(&buf, line, fileName, "terminal16m", bg)
+	if err != nil {
+		return line
+	}
+	return buf.String()
+}
+
+// createStyles generates the lipgloss styles needed for rendering diffs
+func createStyles(t theme.Theme) (removedLineStyle, addedLineStyle, contextLineStyle, lineNumberStyle lipgloss.Style) {
+	removedLineStyle = lipgloss.NewStyle().Background(t.DiffRemovedBg())
+	addedLineStyle = lipgloss.NewStyle().Background(t.DiffAddedBg())
+	contextLineStyle = lipgloss.NewStyle().Background(t.DiffContextBg())
+	lineNumberStyle = lipgloss.NewStyle().Foreground(t.DiffLineNumber())
+
+	return
+}
+
+// -------------------------------------------------------------------------
+// Rendering Functions
+// -------------------------------------------------------------------------
+
+// applyHighlighting applies intra-line highlighting to a piece of text
+func applyHighlighting(content string, segments []Segment, segmentType LineType, highlightBg lipgloss.AdaptiveColor) string {
+	// Find all ANSI sequences in the content
+	ansiRegex := regexp.MustCompile(`\x1b(?:[@-Z\\-_]|\[[0-9?]*(?:;[0-9?]*)*[@-~])`)
+	ansiMatches := ansiRegex.FindAllStringIndex(content, -1)
+
+	// Build a mapping of visible character positions to their actual indices
+	visibleIdx := 0
+	ansiSequences := make(map[int]string)
+	lastAnsiSeq := "\x1b[0m" // Default reset sequence
+
+	for i := 0; i < len(content); {
+		isAnsi := false
+		for _, match := range ansiMatches {
+			if match[0] == i {
+				ansiSequences[visibleIdx] = content[match[0]:match[1]]
+				lastAnsiSeq = content[match[0]:match[1]]
+				i = match[1]
+				isAnsi = true
+				break
+			}
+		}
+		if isAnsi {
+			continue
+		}
+
+		// For non-ANSI positions, store the last ANSI sequence
+		if _, exists := ansiSequences[visibleIdx]; !exists {
+			ansiSequences[visibleIdx] = lastAnsiSeq
+		}
+		visibleIdx++
+		i++
+	}
+
+	// Apply highlighting
+	var sb strings.Builder
+	inSelection := false
+	currentPos := 0
+
+	// Get the appropriate color based on terminal background
+	bgColor := lipgloss.Color(getColor(highlightBg))
+	fgColor := lipgloss.Color(getColor(theme.CurrentTheme().Background()))
+
+	for i := 0; i < len(content); {
+		// Check if we're at an ANSI sequence
+		isAnsi := false
+		for _, match := range ansiMatches {
+			if match[0] == i {
+				sb.WriteString(content[match[0]:match[1]]) // Preserve ANSI sequence
+				i = match[1]
+				isAnsi = true
+				break
+			}
+		}
+		if isAnsi {
+			continue
+		}
+
+		// Check for segment boundaries
+		for _, seg := range segments {
+			if seg.Type == segmentType {
+				if currentPos == seg.Start {
+					inSelection = true
+				}
+				if currentPos == seg.End {
+					inSelection = false
+				}
+			}
+		}
+
+		// Get current character
+		char := string(content[i])
+
+		if inSelection {
+			// Get the current styling
+			currentStyle := ansiSequences[currentPos]
+
+			// Apply foreground and background highlight
+			sb.WriteString("\x1b[38;2;")
+			r, g, b, _ := fgColor.RGBA()
+			sb.WriteString(fmt.Sprintf("%d;%d;%dm", r>>8, g>>8, b>>8))
+			sb.WriteString("\x1b[48;2;")
+			r, g, b, _ = bgColor.RGBA()
+			sb.WriteString(fmt.Sprintf("%d;%d;%dm", r>>8, g>>8, b>>8))
+			sb.WriteString(char)
+
+			// Full reset of all attributes to ensure clean state
+			sb.WriteString("\x1b[0m")
+
+			// Reapply the original ANSI sequence
+			sb.WriteString(currentStyle)
+		} else {
+			// Not in selection, just copy the character
+			sb.WriteString(char)
+		}
+
+		currentPos++
+		i++
+	}
+
+	return sb.String()
+}
+
+// renderDiffColumnLine is a helper function that handles the common logic for rendering diff columns
+func renderDiffColumnLine(
+	fileName string,
+	dl *DiffLine,
+	colWidth int,
+	isLeftColumn bool,
+	t theme.Theme,
+) string {
+	if dl == nil {
+		contextLineStyle := lipgloss.NewStyle().Background(t.DiffContextBg())
+		return contextLineStyle.Width(colWidth).Render("")
+	}
+
+	removedLineStyle, addedLineStyle, contextLineStyle, lineNumberStyle := createStyles(t)
+
+	// Determine line style based on line type and column
+	var marker string
+	var bgStyle lipgloss.Style
+	var lineNum string
+	var highlightType LineType
+	var highlightColor lipgloss.AdaptiveColor
+
+	if isLeftColumn {
+		// Left column logic
+		switch dl.Kind {
+		case LineRemoved:
+			marker = "-"
+			bgStyle = removedLineStyle
+			lineNumberStyle = lineNumberStyle.Foreground(t.DiffRemoved()).Background(t.DiffRemovedLineNumberBg())
+			highlightType = LineRemoved
+			highlightColor = t.DiffHighlightRemoved()
+		case LineAdded:
+			marker = "?"
+			bgStyle = contextLineStyle
+		case LineContext:
+			marker = " "
+			bgStyle = contextLineStyle
+		}
+
+		// Format line number for left column
+		if dl.OldLineNo > 0 {
+			lineNum = fmt.Sprintf("%6d", dl.OldLineNo)
+		}
+	} else {
+		// Right column logic
+		switch dl.Kind {
+		case LineAdded:
+			marker = "+"
+			bgStyle = addedLineStyle
+			lineNumberStyle = lineNumberStyle.Foreground(t.DiffAdded()).Background(t.DiffAddedLineNumberBg())
+			highlightType = LineAdded
+			highlightColor = t.DiffHighlightAdded()
+		case LineRemoved:
+			marker = "?"
+			bgStyle = contextLineStyle
+		case LineContext:
+			marker = " "
+			bgStyle = contextLineStyle
+		}
+
+		// Format line number for right column
+		if dl.NewLineNo > 0 {
+			lineNum = fmt.Sprintf("%6d", dl.NewLineNo)
+		}
+	}
+
+	// Style the marker based on line type
+	var styledMarker string
+	switch dl.Kind {
+	case LineRemoved:
+		styledMarker = removedLineStyle.Foreground(t.DiffRemoved()).Render(marker)
+	case LineAdded:
+		styledMarker = addedLineStyle.Foreground(t.DiffAdded()).Render(marker)
+	case LineContext:
+		styledMarker = contextLineStyle.Foreground(t.TextMuted()).Render(marker)
+	default:
+		styledMarker = marker
+	}
+
+	// Create the line prefix
+	prefix := lineNumberStyle.Render(lineNum + " " + styledMarker)
+
+	// Apply syntax highlighting
+	content := highlightLine(fileName, dl.Content, bgStyle.GetBackground())
+
+	// Apply intra-line highlighting if needed
+	if (dl.Kind == LineRemoved && isLeftColumn || dl.Kind == LineAdded && !isLeftColumn) && len(dl.Segments) > 0 {
+		content = applyHighlighting(content, dl.Segments, highlightType, highlightColor)
+	}
+
+	// Add a padding space for added/removed lines
+	if (dl.Kind == LineRemoved && isLeftColumn) || (dl.Kind == LineAdded && !isLeftColumn) {
+		content = bgStyle.Render(" ") + content
+	}
+
+	// Create the final line and truncate if needed
+	lineText := prefix + content
+	return bgStyle.MaxHeight(1).Width(colWidth).Render(
+		ansi.Truncate(
+			lineText,
+			colWidth,
+			lipgloss.NewStyle().Background(bgStyle.GetBackground()).Foreground(t.TextMuted()).Render("..."),
+		),
+	)
+}
+
+// renderLeftColumn formats the left side of a side-by-side diff
+func renderLeftColumn(fileName string, dl *DiffLine, colWidth int) string {
+	return renderDiffColumnLine(fileName, dl, colWidth, true, theme.CurrentTheme())
+}
+
+// renderRightColumn formats the right side of a side-by-side diff
+func renderRightColumn(fileName string, dl *DiffLine, colWidth int) string {
+	return renderDiffColumnLine(fileName, dl, colWidth, false, theme.CurrentTheme())
+}
+
+// -------------------------------------------------------------------------
+// Public API
+// -------------------------------------------------------------------------
+
+// RenderSideBySideHunk formats a hunk for side-by-side display
+func RenderSideBySideHunk(fileName string, h Hunk, opts ...SideBySideOption) string {
+	// Apply options to create the configuration
+	config := NewSideBySideConfig(opts...)
+
+	// Make a copy of the hunk so we don't modify the original
+	hunkCopy := Hunk{Lines: make([]DiffLine, len(h.Lines))}
+	copy(hunkCopy.Lines, h.Lines)
+
+	// Highlight changes within lines
+	HighlightIntralineChanges(&hunkCopy)
+
+	// Pair lines for side-by-side display
+	pairs := pairLines(hunkCopy.Lines)
+
+	// Calculate column width
+	colWidth := config.TotalWidth / 2
+
+	leftWidth := colWidth
+	rightWidth := config.TotalWidth - colWidth
+	var sb strings.Builder
+	for _, p := range pairs {
+		leftStr := renderLeftColumn(fileName, p.left, leftWidth)
+		rightStr := renderRightColumn(fileName, p.right, rightWidth)
+		sb.WriteString(leftStr + rightStr + "\n")
+	}
+
+	return sb.String()
+}
+
+// FormatDiff creates a side-by-side formatted view of a diff
+func FormatDiff(diffText string, opts ...SideBySideOption) (string, error) {
+	t := theme.CurrentTheme()
+	diffResult, err := ParseUnifiedDiff(diffText)
+	if err != nil {
+		return "", err
+	}
+
+	var sb strings.Builder
+	config := NewSideBySideConfig(opts...)
+	for _, h := range diffResult.Hunks {
+		sb.WriteString(
+			lipgloss.NewStyle().
+				Background(t.DiffHunkHeader()).
+				Foreground(t.Background()).
+				Width(config.TotalWidth).
+				Render(h.Header) + "\n",
+		)
+		sb.WriteString(RenderSideBySideHunk(diffResult.OldFile, h, opts...))
+	}
+
+	return sb.String(), nil
+}
+
+// GenerateDiff creates a unified diff from two file contents
+func GenerateDiff(beforeContent, afterContent, fileName string) (string, int, int) {
+	// remove the cwd prefix and ensure consistent path format
+	// this prevents issues with absolute paths in different environments
+	cwd := config.WorkingDirectory()
+	fileName = strings.TrimPrefix(fileName, cwd)
+	fileName = strings.TrimPrefix(fileName, "/")
+
+	edits := udiff.Strings(beforeContent, afterContent)
+	unified, _ := udiff.ToUnified("a/"+fileName, "b/"+fileName, beforeContent, edits, 8)
+
+	var (
+		additions = 0
+		removals  = 0
+	)
+
+	lines := strings.SplitSeq(unified, "\n")
+	for line := range lines {
+		if strings.HasPrefix(line, "+") && !strings.HasPrefix(line, "+++") {
+			additions++
+		} else if strings.HasPrefix(line, "-") && !strings.HasPrefix(line, "---") {
+			removals++
+		}
+	}
+
+	return unified, additions, removals
+}

packages/tui/internal/diff/diff_test.go

@@ -0,0 +1,103 @@
+package diff
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/stretchr/testify/assert"
+)
+
+// TestApplyHighlighting tests the applyHighlighting function with various ANSI sequences
+func TestApplyHighlighting(t *testing.T) {
+	t.Parallel()
+
+	// Mock theme colors for testing
+	mockHighlightBg := lipgloss.AdaptiveColor{
+		Dark:  "#FF0000", // Red background for highlighting
+		Light: "#FF0000",
+	}
+
+	// Test cases
+	tests := []struct {
+		name           string
+		content        string
+		segments       []Segment
+		segmentType    LineType
+		expectContains string
+	}{
+		{
+			name:        "Simple text with no ANSI",
+			content:     "This is a test",
+			segments:    []Segment{{Start: 0, End: 4, Type: LineAdded}},
+			segmentType: LineAdded,
+			// Should contain full reset sequence after highlighting
+			expectContains: "\x1b[0m",
+		},
+		{
+			name:        "Text with existing ANSI foreground",
+			content:     "This \x1b[32mis\x1b[0m a test", // "is" in green
+			segments:    []Segment{{Start: 5, End: 7, Type: LineAdded}},
+			segmentType: LineAdded,
+			// Should contain full reset sequence after highlighting
+			expectContains: "\x1b[0m",
+		},
+		{
+			name:        "Text with existing ANSI background",
+			content:     "This \x1b[42mis\x1b[0m a test", // "is" with green background
+			segments:    []Segment{{Start: 5, End: 7, Type: LineAdded}},
+			segmentType: LineAdded,
+			// Should contain full reset sequence after highlighting
+			expectContains: "\x1b[0m",
+		},
+		{
+			name:        "Text with complex ANSI styling",
+			content:     "This \x1b[1;32;45mis\x1b[0m a test", // "is" bold green on magenta
+			segments:    []Segment{{Start: 5, End: 7, Type: LineAdded}},
+			segmentType: LineAdded,
+			// Should contain full reset sequence after highlighting
+			expectContains: "\x1b[0m",
+		},
+	}
+
+	for _, tc := range tests {
+		tc := tc // Capture range variable for parallel testing
+		t.Run(tc.name, func(t *testing.T) {
+			t.Parallel()
+			result := applyHighlighting(tc.content, tc.segments, tc.segmentType, mockHighlightBg)
+			
+			// Verify the result contains the expected sequence
+			assert.Contains(t, result, tc.expectContains, 
+				"Result should contain full reset sequence")
+			
+			// Print the result for manual inspection if needed
+			if t.Failed() {
+				fmt.Printf("Original: %q\nResult: %q\n", tc.content, result)
+			}
+		})
+	}
+}
+
+// TestApplyHighlightingWithMultipleSegments tests highlighting multiple segments
+func TestApplyHighlightingWithMultipleSegments(t *testing.T) {
+	t.Parallel()
+
+	// Mock theme colors for testing
+	mockHighlightBg := lipgloss.AdaptiveColor{
+		Dark:  "#FF0000", // Red background for highlighting
+		Light: "#FF0000",
+	}
+
+	content := "This is a test with multiple segments to highlight"
+	segments := []Segment{
+		{Start: 0, End: 4, Type: LineAdded},   // "This"
+		{Start: 8, End: 9, Type: LineAdded},   // "a"
+		{Start: 15, End: 23, Type: LineAdded}, // "multiple"
+	}
+
+	result := applyHighlighting(content, segments, LineAdded, mockHighlightBg)
+	
+	// Verify the result contains the full reset sequence
+	assert.Contains(t, result, "\x1b[0m", 
+		"Result should contain full reset sequence")
+}

packages/tui/internal/diff/patch.go

@@ -0,0 +1,740 @@
+package diff
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+type ActionType string
+
+const (
+	ActionAdd    ActionType = "add"
+	ActionDelete ActionType = "delete"
+	ActionUpdate ActionType = "update"
+)
+
+type FileChange struct {
+	Type       ActionType
+	OldContent *string
+	NewContent *string
+	MovePath   *string
+}
+
+type Commit struct {
+	Changes map[string]FileChange
+}
+
+type Chunk struct {
+	OrigIndex int      // line index of the first line in the original file
+	DelLines  []string // lines to delete
+	InsLines  []string // lines to insert
+}
+
+type PatchAction struct {
+	Type     ActionType
+	NewFile  *string
+	Chunks   []Chunk
+	MovePath *string
+}
+
+type Patch struct {
+	Actions map[string]PatchAction
+}
+
+type DiffError struct {
+	message string
+}
+
+func (e DiffError) Error() string {
+	return e.message
+}
+
+// Helper functions for error handling
+func NewDiffError(message string) DiffError {
+	return DiffError{message: message}
+}
+
+func fileError(action, reason, path string) DiffError {
+	return NewDiffError(fmt.Sprintf("%s File Error: %s: %s", action, reason, path))
+}
+
+func contextError(index int, context string, isEOF bool) DiffError {
+	prefix := "Invalid Context"
+	if isEOF {
+		prefix = "Invalid EOF Context"
+	}
+	return NewDiffError(fmt.Sprintf("%s %d:\n%s", prefix, index, context))
+}
+
+type Parser struct {
+	currentFiles map[string]string
+	lines        []string
+	index        int
+	patch        Patch
+	fuzz         int
+}
+
+func NewParser(currentFiles map[string]string, lines []string) *Parser {
+	return &Parser{
+		currentFiles: currentFiles,
+		lines:        lines,
+		index:        0,
+		patch:        Patch{Actions: make(map[string]PatchAction, len(currentFiles))},
+		fuzz:         0,
+	}
+}
+
+func (p *Parser) isDone(prefixes []string) bool {
+	if p.index >= len(p.lines) {
+		return true
+	}
+	for _, prefix := range prefixes {
+		if strings.HasPrefix(p.lines[p.index], prefix) {
+			return true
+		}
+	}
+	return false
+}
+
+func (p *Parser) startsWith(prefix any) bool {
+	var prefixes []string
+	switch v := prefix.(type) {
+	case string:
+		prefixes = []string{v}
+	case []string:
+		prefixes = v
+	}
+
+	for _, pfx := range prefixes {
+		if strings.HasPrefix(p.lines[p.index], pfx) {
+			return true
+		}
+	}
+	return false
+}
+
+func (p *Parser) readStr(prefix string, returnEverything bool) string {
+	if p.index >= len(p.lines) {
+		return "" // Changed from panic to return empty string for safer operation
+	}
+	if strings.HasPrefix(p.lines[p.index], prefix) {
+		var text string
+		if returnEverything {
+			text = p.lines[p.index]
+		} else {
+			text = p.lines[p.index][len(prefix):]
+		}
+		p.index++
+		return text
+	}
+	return ""
+}
+
+func (p *Parser) Parse() error {
+	endPatchPrefixes := []string{"*** End Patch"}
+
+	for !p.isDone(endPatchPrefixes) {
+		path := p.readStr("*** Update File: ", false)
+		if path != "" {
+			if _, exists := p.patch.Actions[path]; exists {
+				return fileError("Update", "Duplicate Path", path)
+			}
+			moveTo := p.readStr("*** Move to: ", false)
+			if _, exists := p.currentFiles[path]; !exists {
+				return fileError("Update", "Missing File", path)
+			}
+			text := p.currentFiles[path]
+			action, err := p.parseUpdateFile(text)
+			if err != nil {
+				return err
+			}
+			if moveTo != "" {
+				action.MovePath = &moveTo
+			}
+			p.patch.Actions[path] = action
+			continue
+		}
+
+		path = p.readStr("*** Delete File: ", false)
+		if path != "" {
+			if _, exists := p.patch.Actions[path]; exists {
+				return fileError("Delete", "Duplicate Path", path)
+			}
+			if _, exists := p.currentFiles[path]; !exists {
+				return fileError("Delete", "Missing File", path)
+			}
+			p.patch.Actions[path] = PatchAction{Type: ActionDelete, Chunks: []Chunk{}}
+			continue
+		}
+
+		path = p.readStr("*** Add File: ", false)
+		if path != "" {
+			if _, exists := p.patch.Actions[path]; exists {
+				return fileError("Add", "Duplicate Path", path)
+			}
+			if _, exists := p.currentFiles[path]; exists {
+				return fileError("Add", "File already exists", path)
+			}
+			action, err := p.parseAddFile()
+			if err != nil {
+				return err
+			}
+			p.patch.Actions[path] = action
+			continue
+		}
+
+		return NewDiffError(fmt.Sprintf("Unknown Line: %s", p.lines[p.index]))
+	}
+
+	if !p.startsWith("*** End Patch") {
+		return NewDiffError("Missing End Patch")
+	}
+	p.index++
+
+	return nil
+}
+
+func (p *Parser) parseUpdateFile(text string) (PatchAction, error) {
+	action := PatchAction{Type: ActionUpdate, Chunks: []Chunk{}}
+	fileLines := strings.Split(text, "\n")
+	index := 0
+
+	endPrefixes := []string{
+		"*** End Patch",
+		"*** Update File:",
+		"*** Delete File:",
+		"*** Add File:",
+		"*** End of File",
+	}
+
+	for !p.isDone(endPrefixes) {
+		defStr := p.readStr("@@ ", false)
+		sectionStr := ""
+		if defStr == "" && p.index < len(p.lines) && p.lines[p.index] == "@@" {
+			sectionStr = p.lines[p.index]
+			p.index++
+		}
+		if defStr == "" && sectionStr == "" && index != 0 {
+			return action, NewDiffError(fmt.Sprintf("Invalid Line:\n%s", p.lines[p.index]))
+		}
+		if strings.TrimSpace(defStr) != "" {
+			found := false
+			for i := range fileLines[:index] {
+				if fileLines[i] == defStr {
+					found = true
+					break
+				}
+			}
+
+			if !found {
+				for i := index; i < len(fileLines); i++ {
+					if fileLines[i] == defStr {
+						index = i + 1
+						found = true
+						break
+					}
+				}
+			}
+
+			if !found {
+				for i := range fileLines[:index] {
+					if strings.TrimSpace(fileLines[i]) == strings.TrimSpace(defStr) {
+						found = true
+						break
+					}
+				}
+			}
+
+			if !found {
+				for i := index; i < len(fileLines); i++ {
+					if strings.TrimSpace(fileLines[i]) == strings.TrimSpace(defStr) {
+						index = i + 1
+						p.fuzz++
+						found = true
+						break
+					}
+				}
+			}
+		}
+
+		nextChunkContext, chunks, endPatchIndex, eof := peekNextSection(p.lines, p.index)
+		newIndex, fuzz := findContext(fileLines, nextChunkContext, index, eof)
+		if newIndex == -1 {
+			ctxText := strings.Join(nextChunkContext, "\n")
+			return action, contextError(index, ctxText, eof)
+		}
+		p.fuzz += fuzz
+
+		for _, ch := range chunks {
+			ch.OrigIndex += newIndex
+			action.Chunks = append(action.Chunks, ch)
+		}
+		index = newIndex + len(nextChunkContext)
+		p.index = endPatchIndex
+	}
+	return action, nil
+}
+
+func (p *Parser) parseAddFile() (PatchAction, error) {
+	lines := make([]string, 0, 16) // Preallocate space for better performance
+	endPrefixes := []string{
+		"*** End Patch",
+		"*** Update File:",
+		"*** Delete File:",
+		"*** Add File:",
+	}
+
+	for !p.isDone(endPrefixes) {
+		s := p.readStr("", true)
+		if !strings.HasPrefix(s, "+") {
+			return PatchAction{}, NewDiffError(fmt.Sprintf("Invalid Add File Line: %s", s))
+		}
+		lines = append(lines, s[1:])
+	}
+
+	newFile := strings.Join(lines, "\n")
+	return PatchAction{
+		Type:    ActionAdd,
+		NewFile: &newFile,
+		Chunks:  []Chunk{},
+	}, nil
+}
+
+// Refactored to use a matcher function for each comparison type
+func findContextCore(lines []string, context []string, start int) (int, int) {
+	if len(context) == 0 {
+		return start, 0
+	}
+
+	// Try exact match
+	if idx, fuzz := tryFindMatch(lines, context, start, func(a, b string) bool {
+		return a == b
+	}); idx >= 0 {
+		return idx, fuzz
+	}
+
+	// Try trimming right whitespace
+	if idx, fuzz := tryFindMatch(lines, context, start, func(a, b string) bool {
+		return strings.TrimRight(a, " \t") == strings.TrimRight(b, " \t")
+	}); idx >= 0 {
+		return idx, fuzz
+	}
+
+	// Try trimming all whitespace
+	if idx, fuzz := tryFindMatch(lines, context, start, func(a, b string) bool {
+		return strings.TrimSpace(a) == strings.TrimSpace(b)
+	}); idx >= 0 {
+		return idx, fuzz
+	}
+
+	return -1, 0
+}
+
+// Helper function to DRY up the match logic
+func tryFindMatch(lines []string, context []string, start int,
+	compareFunc func(string, string) bool,
+) (int, int) {
+	for i := start; i < len(lines); i++ {
+		if i+len(context) <= len(lines) {
+			match := true
+			for j := range context {
+				if !compareFunc(lines[i+j], context[j]) {
+					match = false
+					break
+				}
+			}
+			if match {
+				// Return fuzz level: 0 for exact, 1 for trimRight, 100 for trimSpace
+				var fuzz int
+				if compareFunc("a ", "a") && !compareFunc("a", "b") {
+					fuzz = 1
+				} else if compareFunc("a  ", "a") {
+					fuzz = 100
+				}
+				return i, fuzz
+			}
+		}
+	}
+	return -1, 0
+}
+
+func findContext(lines []string, context []string, start int, eof bool) (int, int) {
+	if eof {
+		newIndex, fuzz := findContextCore(lines, context, len(lines)-len(context))
+		if newIndex != -1 {
+			return newIndex, fuzz
+		}
+		newIndex, fuzz = findContextCore(lines, context, start)
+		return newIndex, fuzz + 10000
+	}
+	return findContextCore(lines, context, start)
+}
+
+func peekNextSection(lines []string, initialIndex int) ([]string, []Chunk, int, bool) {
+	index := initialIndex
+	old := make([]string, 0, 32) // Preallocate for better performance
+	delLines := make([]string, 0, 8)
+	insLines := make([]string, 0, 8)
+	chunks := make([]Chunk, 0, 4)
+	mode := "keep"
+
+	// End conditions for the section
+	endSectionConditions := func(s string) bool {
+		return strings.HasPrefix(s, "@@") ||
+			strings.HasPrefix(s, "*** End Patch") ||
+			strings.HasPrefix(s, "*** Update File:") ||
+			strings.HasPrefix(s, "*** Delete File:") ||
+			strings.HasPrefix(s, "*** Add File:") ||
+			strings.HasPrefix(s, "*** End of File") ||
+			s == "***" ||
+			strings.HasPrefix(s, "***")
+	}
+
+	for index < len(lines) {
+		s := lines[index]
+		if endSectionConditions(s) {
+			break
+		}
+		index++
+		lastMode := mode
+		line := s
+
+		if len(line) > 0 {
+			switch line[0] {
+			case '+':
+				mode = "add"
+			case '-':
+				mode = "delete"
+			case ' ':
+				mode = "keep"
+			default:
+				mode = "keep"
+				line = " " + line
+			}
+		} else {
+			mode = "keep"
+			line = " "
+		}
+
+		line = line[1:]
+		if mode == "keep" && lastMode != mode {
+			if len(insLines) > 0 || len(delLines) > 0 {
+				chunks = append(chunks, Chunk{
+					OrigIndex: len(old) - len(delLines),
+					DelLines:  delLines,
+					InsLines:  insLines,
+				})
+			}
+			delLines = make([]string, 0, 8)
+			insLines = make([]string, 0, 8)
+		}
+		switch mode {
+		case "delete":
+			delLines = append(delLines, line)
+			old = append(old, line)
+		case "add":
+			insLines = append(insLines, line)
+		default:
+			old = append(old, line)
+		}
+	}
+
+	if len(insLines) > 0 || len(delLines) > 0 {
+		chunks = append(chunks, Chunk{
+			OrigIndex: len(old) - len(delLines),
+			DelLines:  delLines,
+			InsLines:  insLines,
+		})
+	}
+
+	if index < len(lines) && lines[index] == "*** End of File" {
+		index++
+		return old, chunks, index, true
+	}
+	return old, chunks, index, false
+}
+
+func TextToPatch(text string, orig map[string]string) (Patch, int, error) {
+	text = strings.TrimSpace(text)
+	lines := strings.Split(text, "\n")
+	if len(lines) < 2 || !strings.HasPrefix(lines[0], "*** Begin Patch") || lines[len(lines)-1] != "*** End Patch" {
+		return Patch{}, 0, NewDiffError("Invalid patch text")
+	}
+	parser := NewParser(orig, lines)
+	parser.index = 1
+	if err := parser.Parse(); err != nil {
+		return Patch{}, 0, err
+	}
+	return parser.patch, parser.fuzz, nil
+}
+
+func IdentifyFilesNeeded(text string) []string {
+	text = strings.TrimSpace(text)
+	lines := strings.Split(text, "\n")
+	result := make(map[string]bool)
+
+	for _, line := range lines {
+		if strings.HasPrefix(line, "*** Update File: ") {
+			result[line[len("*** Update File: "):]] = true
+		}
+		if strings.HasPrefix(line, "*** Delete File: ") {
+			result[line[len("*** Delete File: "):]] = true
+		}
+	}
+
+	files := make([]string, 0, len(result))
+	for file := range result {
+		files = append(files, file)
+	}
+	return files
+}
+
+func IdentifyFilesAdded(text string) []string {
+	text = strings.TrimSpace(text)
+	lines := strings.Split(text, "\n")
+	result := make(map[string]bool)
+
+	for _, line := range lines {
+		if strings.HasPrefix(line, "*** Add File: ") {
+			result[line[len("*** Add File: "):]] = true
+		}
+	}
+
+	files := make([]string, 0, len(result))
+	for file := range result {
+		files = append(files, file)
+	}
+	return files
+}
+
+func getUpdatedFile(text string, action PatchAction, path string) (string, error) {
+	if action.Type != ActionUpdate {
+		return "", errors.New("expected UPDATE action")
+	}
+	origLines := strings.Split(text, "\n")
+	destLines := make([]string, 0, len(origLines)) // Preallocate with capacity
+	origIndex := 0
+
+	for _, chunk := range action.Chunks {
+		if chunk.OrigIndex > len(origLines) {
+			return "", NewDiffError(fmt.Sprintf("%s: chunk.orig_index %d > len(lines) %d", path, chunk.OrigIndex, len(origLines)))
+		}
+		if origIndex > chunk.OrigIndex {
+			return "", NewDiffError(fmt.Sprintf("%s: orig_index %d > chunk.orig_index %d", path, origIndex, chunk.OrigIndex))
+		}
+		destLines = append(destLines, origLines[origIndex:chunk.OrigIndex]...)
+		delta := chunk.OrigIndex - origIndex
+		origIndex += delta
+
+		if len(chunk.InsLines) > 0 {
+			destLines = append(destLines, chunk.InsLines...)
+		}
+		origIndex += len(chunk.DelLines)
+	}
+
+	destLines = append(destLines, origLines[origIndex:]...)
+	return strings.Join(destLines, "\n"), nil
+}
+
+func PatchToCommit(patch Patch, orig map[string]string) (Commit, error) {
+	commit := Commit{Changes: make(map[string]FileChange, len(patch.Actions))}
+	for pathKey, action := range patch.Actions {
+		switch action.Type {
+		case ActionDelete:
+			oldContent := orig[pathKey]
+			commit.Changes[pathKey] = FileChange{
+				Type:       ActionDelete,
+				OldContent: &oldContent,
+			}
+		case ActionAdd:
+			commit.Changes[pathKey] = FileChange{
+				Type:       ActionAdd,
+				NewContent: action.NewFile,
+			}
+		case ActionUpdate:
+			newContent, err := getUpdatedFile(orig[pathKey], action, pathKey)
+			if err != nil {
+				return Commit{}, err
+			}
+			oldContent := orig[pathKey]
+			fileChange := FileChange{
+				Type:       ActionUpdate,
+				OldContent: &oldContent,
+				NewContent: &newContent,
+			}
+			if action.MovePath != nil {
+				fileChange.MovePath = action.MovePath
+			}
+			commit.Changes[pathKey] = fileChange
+		}
+	}
+	return commit, nil
+}
+
+func AssembleChanges(orig map[string]string, updatedFiles map[string]string) Commit {
+	commit := Commit{Changes: make(map[string]FileChange, len(updatedFiles))}
+	for p, newContent := range updatedFiles {
+		oldContent, exists := orig[p]
+		if exists && oldContent == newContent {
+			continue
+		}
+
+		if exists && newContent != "" {
+			commit.Changes[p] = FileChange{
+				Type:       ActionUpdate,
+				OldContent: &oldContent,
+				NewContent: &newContent,
+			}
+		} else if newContent != "" {
+			commit.Changes[p] = FileChange{
+				Type:       ActionAdd,
+				NewContent: &newContent,
+			}
+		} else if exists {
+			commit.Changes[p] = FileChange{
+				Type:       ActionDelete,
+				OldContent: &oldContent,
+			}
+		} else {
+			return commit // Changed from panic to simply return current commit
+		}
+	}
+	return commit
+}
+
+func LoadFiles(paths []string, openFn func(string) (string, error)) (map[string]string, error) {
+	orig := make(map[string]string, len(paths))
+	for _, p := range paths {
+		content, err := openFn(p)
+		if err != nil {
+			return nil, fileError("Open", "File not found", p)
+		}
+		orig[p] = content
+	}
+	return orig, nil
+}
+
+func ApplyCommit(commit Commit, writeFn func(string, string) error, removeFn func(string) error) error {
+	for p, change := range commit.Changes {
+		switch change.Type {
+		case ActionDelete:
+			if err := removeFn(p); err != nil {
+				return err
+			}
+		case ActionAdd:
+			if change.NewContent == nil {
+				return NewDiffError(fmt.Sprintf("Add action for %s has nil new_content", p))
+			}
+			if err := writeFn(p, *change.NewContent); err != nil {
+				return err
+			}
+		case ActionUpdate:
+			if change.NewContent == nil {
+				return NewDiffError(fmt.Sprintf("Update action for %s has nil new_content", p))
+			}
+			if change.MovePath != nil {
+				if err := writeFn(*change.MovePath, *change.NewContent); err != nil {
+					return err
+				}
+				if err := removeFn(p); err != nil {
+					return err
+				}
+			} else {
+				if err := writeFn(p, *change.NewContent); err != nil {
+					return err
+				}
+			}
+		}
+	}
+	return nil
+}
+
+func ProcessPatch(text string, openFn func(string) (string, error), writeFn func(string, string) error, removeFn func(string) error) (string, error) {
+	if !strings.HasPrefix(text, "*** Begin Patch") {
+		return "", NewDiffError("Patch must start with *** Begin Patch")
+	}
+	paths := IdentifyFilesNeeded(text)
+	orig, err := LoadFiles(paths, openFn)
+	if err != nil {
+		return "", err
+	}
+
+	patch, fuzz, err := TextToPatch(text, orig)
+	if err != nil {
+		return "", err
+	}
+
+	if fuzz > 0 {
+		return "", NewDiffError(fmt.Sprintf("Patch contains fuzzy matches (fuzz level: %d)", fuzz))
+	}
+
+	commit, err := PatchToCommit(patch, orig)
+	if err != nil {
+		return "", err
+	}
+
+	if err := ApplyCommit(commit, writeFn, removeFn); err != nil {
+		return "", err
+	}
+
+	return "Patch applied successfully", nil
+}
+
+func OpenFile(p string) (string, error) {
+	data, err := os.ReadFile(p)
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
+func WriteFile(p string, content string) error {
+	if filepath.IsAbs(p) {
+		return NewDiffError("We do not support absolute paths.")
+	}
+
+	dir := filepath.Dir(p)
+	if dir != "." {
+		if err := os.MkdirAll(dir, 0o755); err != nil {
+			return err
+		}
+	}
+
+	return os.WriteFile(p, []byte(content), 0o644)
+}
+
+func RemoveFile(p string) error {
+	return os.Remove(p)
+}
+
+func ValidatePatch(patchText string, files map[string]string) (bool, string, error) {
+	if !strings.HasPrefix(patchText, "*** Begin Patch") {
+		return false, "Patch must start with *** Begin Patch", nil
+	}
+
+	neededFiles := IdentifyFilesNeeded(patchText)
+	for _, filePath := range neededFiles {
+		if _, exists := files[filePath]; !exists {
+			return false, fmt.Sprintf("File not found: %s", filePath), nil
+		}
+	}
+
+	patch, fuzz, err := TextToPatch(patchText, files)
+	if err != nil {
+		return false, err.Error(), nil
+	}
+
+	if fuzz > 0 {
+		return false, fmt.Sprintf("Patch contains fuzzy matches (fuzz level: %d)", fuzz), nil
+	}
+
+	_, err = PatchToCommit(patch, files)
+	if err != nil {
+		return false, err.Error(), nil
+	}
+
+	return true, "Patch is valid", nil
+}

packages/tui/internal/fileutil/fileutil.go

@@ -0,0 +1,163 @@
+package fileutil
+
+import (
+	"fmt"
+	"io/fs"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+
+	"github.com/bmatcuk/doublestar/v4"
+	"github.com/sst/opencode/internal/status"
+)
+
+var (
+	rgPath  string
+	fzfPath string
+)
+
+func Init() {
+	var err error
+	rgPath, err = exec.LookPath("rg")
+	if err != nil {
+		status.Warn("Ripgrep (rg) not found in $PATH. Some features might be limited or slower.")
+		rgPath = ""
+	}
+	fzfPath, err = exec.LookPath("fzf")
+	if err != nil {
+		status.Warn("FZF not found in $PATH. Some features might be limited or slower.")
+		fzfPath = ""
+	}
+}
+
+func GetRgCmd(globPattern string) *exec.Cmd {
+	if rgPath == "" {
+		return nil
+	}
+	rgArgs := []string{
+		"--files",
+		"-L",
+		"--null",
+	}
+	if globPattern != "" {
+		if !filepath.IsAbs(globPattern) && !strings.HasPrefix(globPattern, "/") {
+			globPattern = "/" + globPattern
+		}
+		rgArgs = append(rgArgs, "--glob", globPattern)
+	}
+	cmd := exec.Command(rgPath, rgArgs...)
+	cmd.Dir = "."
+	return cmd
+}
+
+func GetFzfCmd(query string) *exec.Cmd {
+	if fzfPath == "" {
+		return nil
+	}
+	fzfArgs := []string{
+		"--filter",
+		query,
+		"--read0",
+		"--print0",
+	}
+	cmd := exec.Command(fzfPath, fzfArgs...)
+	cmd.Dir = "."
+	return cmd
+}
+
+type FileInfo struct {
+	Path    string
+	ModTime time.Time
+}
+
+func SkipHidden(path string) bool {
+	// Check for hidden files (starting with a dot)
+	base := filepath.Base(path)
+	if base != "." && strings.HasPrefix(base, ".") {
+		return true
+	}
+
+	commonIgnoredDirs := map[string]bool{
+		".opencode":        true,
+		"node_modules":     true,
+		"vendor":           true,
+		"dist":             true,
+		"build":            true,
+		"target":           true,
+		".git":             true,
+		".idea":            true,
+		".vscode":          true,
+		"__pycache__":      true,
+		"bin":              true,
+		"obj":              true,
+		"out":              true,
+		"coverage":         true,
+		"tmp":              true,
+		"temp":             true,
+		"logs":             true,
+		"generated":        true,
+		"bower_components": true,
+		"jspm_packages":    true,
+	}
+
+	parts := strings.Split(path, string(os.PathSeparator))
+	for _, part := range parts {
+		if commonIgnoredDirs[part] {
+			return true
+		}
+	}
+	return false
+}
+
+func GlobWithDoublestar(pattern, searchPath string, limit int) ([]string, bool, error) {
+	fsys := os.DirFS(searchPath)
+	relPattern := strings.TrimPrefix(pattern, "/")
+	var matches []FileInfo
+
+	err := doublestar.GlobWalk(fsys, relPattern, func(path string, d fs.DirEntry) error {
+		if d.IsDir() {
+			return nil
+		}
+		if SkipHidden(path) {
+			return nil
+		}
+		info, err := d.Info()
+		if err != nil {
+			return nil
+		}
+		absPath := path
+		if !strings.HasPrefix(absPath, searchPath) && searchPath != "." {
+			absPath = filepath.Join(searchPath, absPath)
+		} else if !strings.HasPrefix(absPath, "/") && searchPath == "." {
+			absPath = filepath.Join(searchPath, absPath) // Ensure relative paths are joined correctly
+		}
+
+		matches = append(matches, FileInfo{Path: absPath, ModTime: info.ModTime()})
+		if limit > 0 && len(matches) >= limit*2 {
+			return fs.SkipAll
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, false, fmt.Errorf("glob walk error: %w", err)
+	}
+
+	sort.Slice(matches, func(i, j int) bool {
+		return matches[i].ModTime.After(matches[j].ModTime)
+	})
+
+	truncated := false
+	if limit > 0 && len(matches) > limit {
+		matches = matches[:limit]
+		truncated = true
+	}
+
+	results := make([]string, len(matches))
+	for i, m := range matches {
+		results[i] = m.Path
+	}
+	return results, truncated, nil
+}

packages/tui/internal/format/format.go

@@ -0,0 +1,46 @@
+package format
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+// OutputFormat represents the format for non-interactive mode output
+type OutputFormat string
+
+const (
+	// TextFormat is plain text output (default)
+	TextFormat OutputFormat = "text"
+
+	// JSONFormat is output wrapped in a JSON object
+	JSONFormat OutputFormat = "json"
+)
+
+// IsValid checks if the output format is valid
+func (f OutputFormat) IsValid() bool {
+	return f == TextFormat || f == JSONFormat
+}
+
+// String returns the string representation of the output format
+func (f OutputFormat) String() string {
+	return string(f)
+}
+
+// FormatOutput formats the given content according to the specified format
+func FormatOutput(content string, format OutputFormat) (string, error) {
+	switch format {
+	case TextFormat:
+		return content, nil
+	case JSONFormat:
+		jsonData := map[string]string{
+			"response": content,
+		}
+		jsonBytes, err := json.MarshalIndent(jsonData, "", "  ")
+		if err != nil {
+			return "", fmt.Errorf("failed to marshal JSON: %w", err)
+		}
+		return string(jsonBytes), nil
+	default:
+		return "", fmt.Errorf("unsupported output format: %s", format)
+	}
+}

packages/tui/internal/format/format_test.go

@@ -0,0 +1,90 @@
+package format
+
+import (
+	"testing"
+)
+
+func TestOutputFormat_IsValid(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name   string
+		format OutputFormat
+		want   bool
+	}{
+		{
+			name:   "text format",
+			format: TextFormat,
+			want:   true,
+		},
+		{
+			name:   "json format",
+			format: JSONFormat,
+			want:   true,
+		},
+		{
+			name:   "invalid format",
+			format: "invalid",
+			want:   false,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			if got := tt.format.IsValid(); got != tt.want {
+				t.Errorf("OutputFormat.IsValid() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestFormatOutput(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name    string
+		content string
+		format  OutputFormat
+		want    string
+		wantErr bool
+	}{
+		{
+			name:    "text format",
+			content: "test content",
+			format:  TextFormat,
+			want:    "test content",
+			wantErr: false,
+		},
+		{
+			name:    "json format",
+			content: "test content",
+			format:  JSONFormat,
+			want:    "{\n  \"response\": \"test content\"\n}",
+			wantErr: false,
+		},
+		{
+			name:    "invalid format",
+			content: "test content",
+			format:  "invalid",
+			want:    "",
+			wantErr: true,
+		},
+	}
+
+	for _, tt := range tests {
+		tt := tt
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+			got, err := FormatOutput(tt.content, tt.format)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("FormatOutput() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if got != tt.want {
+				t.Errorf("FormatOutput() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}

packages/tui/internal/pubsub/broker.go

@@ -0,0 +1,113 @@
+package pubsub
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sync"
+	"time"
+)
+
+const defaultChannelBufferSize = 100
+
+type Broker[T any] struct {
+	subs     map[chan Event[T]]context.CancelFunc
+	mu       sync.RWMutex
+	isClosed bool
+}
+
+func NewBroker[T any]() *Broker[T] {
+	return &Broker[T]{
+		subs: make(map[chan Event[T]]context.CancelFunc),
+	}
+}
+
+func (b *Broker[T]) Shutdown() {
+	b.mu.Lock()
+	if b.isClosed {
+		b.mu.Unlock()
+		return
+	}
+	b.isClosed = true
+
+	for ch, cancel := range b.subs {
+		cancel()
+		close(ch)
+		delete(b.subs, ch)
+	}
+	b.mu.Unlock()
+	slog.Debug("PubSub broker shut down", "type", fmt.Sprintf("%T", *new(T)))
+}
+
+func (b *Broker[T]) Subscribe(ctx context.Context) <-chan Event[T] {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+
+	if b.isClosed {
+		closedCh := make(chan Event[T])
+		close(closedCh)
+		return closedCh
+	}
+
+	subCtx, subCancel := context.WithCancel(ctx)
+	subscriberChannel := make(chan Event[T], defaultChannelBufferSize)
+	b.subs[subscriberChannel] = subCancel
+
+	go func() {
+		<-subCtx.Done()
+		b.mu.Lock()
+		defer b.mu.Unlock()
+		if _, ok := b.subs[subscriberChannel]; ok {
+			close(subscriberChannel)
+			delete(b.subs, subscriberChannel)
+		}
+	}()
+
+	return subscriberChannel
+}
+
+func (b *Broker[T]) Publish(eventType EventType, payload T) {
+	b.mu.RLock()
+	defer b.mu.RUnlock()
+
+	if b.isClosed {
+		slog.Warn("Attempted to publish on a closed pubsub broker", "type", eventType, "payload_type", fmt.Sprintf("%T", payload))
+		return
+	}
+
+	event := Event[T]{Type: eventType, Payload: payload}
+
+	for ch := range b.subs {
+		// Non-blocking send with a fallback to a goroutine to prevent slow subscribers
+		// from blocking the publisher.
+		select {
+		case ch <- event:
+			// Successfully sent
+		default:
+			// Subscriber channel is full or receiver is slow.
+			// Send in a new goroutine to avoid blocking the publisher.
+			// This might lead to out-of-order delivery for this specific slow subscriber.
+			go func(sChan chan Event[T], ev Event[T]) {
+				// Re-check if broker is closed before attempting send in goroutine
+				b.mu.RLock()
+				isBrokerClosed := b.isClosed
+				b.mu.RUnlock()
+				if isBrokerClosed {
+					return
+				}
+
+				select {
+				case sChan <- ev:
+				case <-time.After(2 * time.Second): // Timeout for slow subscriber
+					slog.Warn("PubSub: Dropped event for slow subscriber after timeout", "type", ev.Type)
+				}
+			}(ch, event)
+		}
+	}
+}
+
+func (b *Broker[T]) GetSubscriberCount() int {
+	b.mu.RLock()
+	defer b.mu.RUnlock()
+	return len(b.subs)
+}

packages/tui/internal/pubsub/broker_test.go

@@ -0,0 +1,144 @@
+package pubsub
+
+import (
+	"context"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestBrokerSubscribe(t *testing.T) {
+	t.Parallel()
+
+	t.Run("with cancellable context", func(t *testing.T) {
+		t.Parallel()
+		broker := NewBroker[string]()
+		ctx, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		ch := broker.Subscribe(ctx)
+		assert.NotNil(t, ch)
+		assert.Equal(t, 1, broker.GetSubscriberCount())
+
+		// Cancel the context should remove the subscription
+		cancel()
+		time.Sleep(10 * time.Millisecond) // Give time for goroutine to process
+		assert.Equal(t, 0, broker.GetSubscriberCount())
+	})
+
+	t.Run("with background context", func(t *testing.T) {
+		t.Parallel()
+		broker := NewBroker[string]()
+
+		// Using context.Background() should not leak goroutines
+		ch := broker.Subscribe(context.Background())
+		assert.NotNil(t, ch)
+		assert.Equal(t, 1, broker.GetSubscriberCount())
+
+		// Shutdown should clean up all subscriptions
+		broker.Shutdown()
+		assert.Equal(t, 0, broker.GetSubscriberCount())
+	})
+}
+
+func TestBrokerPublish(t *testing.T) {
+	t.Parallel()
+	broker := NewBroker[string]()
+	ctx := t.Context()
+
+	ch := broker.Subscribe(ctx)
+
+	// Publish a message
+	broker.Publish(EventTypeCreated, "test message")
+
+	// Verify message is received
+	select {
+	case event := <-ch:
+		assert.Equal(t, EventTypeCreated, event.Type)
+		assert.Equal(t, "test message", event.Payload)
+	case <-time.After(100 * time.Millisecond):
+		t.Fatal("timeout waiting for message")
+	}
+}
+
+func TestBrokerShutdown(t *testing.T) {
+	t.Parallel()
+	broker := NewBroker[string]()
+
+	// Create multiple subscribers
+	ch1 := broker.Subscribe(context.Background())
+	ch2 := broker.Subscribe(context.Background())
+
+	assert.Equal(t, 2, broker.GetSubscriberCount())
+
+	// Shutdown should close all channels and clean up
+	broker.Shutdown()
+
+	// Verify channels are closed
+	_, ok1 := <-ch1
+	_, ok2 := <-ch2
+	assert.False(t, ok1, "channel 1 should be closed")
+	assert.False(t, ok2, "channel 2 should be closed")
+
+	// Verify subscriber count is reset
+	assert.Equal(t, 0, broker.GetSubscriberCount())
+}
+
+func TestBrokerConcurrency(t *testing.T) {
+	t.Parallel()
+	broker := NewBroker[int]()
+
+	// Create a large number of subscribers
+	const numSubscribers = 100
+	var wg sync.WaitGroup
+	wg.Add(numSubscribers)
+
+	// Create a channel to collect received events
+	receivedEvents := make(chan int, numSubscribers)
+
+	for i := range numSubscribers {
+		go func(id int) {
+			defer wg.Done()
+			ctx, cancel := context.WithCancel(context.Background())
+			defer cancel()
+
+			ch := broker.Subscribe(ctx)
+
+			// Receive one message then cancel
+			select {
+			case event := <-ch:
+				receivedEvents <- event.Payload
+			case <-time.After(1 * time.Second):
+				t.Errorf("timeout waiting for message %d", id)
+			}
+			cancel()
+		}(i)
+	}
+
+	// Give subscribers time to set up
+	time.Sleep(10 * time.Millisecond)
+
+	// Publish messages to all subscribers
+	for i := range numSubscribers {
+		broker.Publish(EventTypeCreated, i)
+	}
+
+	// Wait for all subscribers to finish
+	wg.Wait()
+	close(receivedEvents)
+
+	// Give time for cleanup goroutines to run
+	time.Sleep(10 * time.Millisecond)
+
+	// Verify all subscribers are cleaned up
+	assert.Equal(t, 0, broker.GetSubscriberCount())
+
+	// Verify we received the expected number of events
+	count := 0
+	for range receivedEvents {
+		count++
+	}
+	assert.Equal(t, numSubscribers, count)
+}

packages/tui/internal/pubsub/events.go

@@ -0,0 +1,24 @@
+package pubsub
+
+import "context"
+
+type EventType string
+
+const (
+	EventTypeCreated EventType = "created"
+	EventTypeUpdated EventType = "updated"
+	EventTypeDeleted EventType = "deleted"
+)
+
+type Event[T any] struct {
+	Type    EventType
+	Payload T
+}
+
+type Subscriber[T any] interface {
+	Subscribe(ctx context.Context) <-chan Event[T]
+}
+
+type Publisher[T any] interface {
+	Publish(eventType EventType, payload T)
+}

packages/tui/internal/status/status.go

@@ -0,0 +1,142 @@
+package status
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"sync"
+	"time"
+
+	"github.com/sst/opencode/internal/pubsub"
+)
+
+type Level string
+
+const (
+	LevelInfo  Level = "info"
+	LevelWarn  Level = "warn"
+	LevelError Level = "error"
+	LevelDebug Level = "debug"
+)
+
+type StatusMessage struct {
+	Level     Level         `json:"level"`
+	Message   string        `json:"message"`
+	Timestamp time.Time     `json:"timestamp"`
+	Critical  bool          `json:"critical"`
+	Duration  time.Duration `json:"duration"`
+}
+
+// StatusOption is a function that configures a status message
+type StatusOption func(*StatusMessage)
+
+// WithCritical marks a status message as critical, causing it to be displayed immediately
+func WithCritical(critical bool) StatusOption {
+	return func(msg *StatusMessage) {
+		msg.Critical = critical
+	}
+}
+
+// WithDuration sets a custom display duration for a status message
+func WithDuration(duration time.Duration) StatusOption {
+	return func(msg *StatusMessage) {
+		msg.Duration = duration
+	}
+}
+
+const (
+	EventStatusPublished pubsub.EventType = "status_published"
+)
+
+type Service interface {
+	pubsub.Subscriber[StatusMessage]
+
+	Info(message string, opts ...StatusOption)
+	Warn(message string, opts ...StatusOption)
+	Error(message string, opts ...StatusOption)
+	Debug(message string, opts ...StatusOption)
+}
+
+type service struct {
+	broker *pubsub.Broker[StatusMessage]
+	mu     sync.RWMutex
+}
+
+var globalStatusService *service
+
+func InitService() error {
+	if globalStatusService != nil {
+		return fmt.Errorf("status service already initialized")
+	}
+	broker := pubsub.NewBroker[StatusMessage]()
+	globalStatusService = &service{
+		broker: broker,
+	}
+	return nil
+}
+
+func GetService() Service {
+	if globalStatusService == nil {
+		panic("status service not initialized. Call status.InitService() at application startup.")
+	}
+	return globalStatusService
+}
+
+func (s *service) Info(message string, opts ...StatusOption) {
+	s.publish(LevelInfo, message, opts...)
+	slog.Info(message)
+}
+
+func (s *service) Warn(message string, opts ...StatusOption) {
+	s.publish(LevelWarn, message, opts...)
+	slog.Warn(message)
+}
+
+func (s *service) Error(message string, opts ...StatusOption) {
+	s.publish(LevelError, message, opts...)
+	slog.Error(message)
+}
+
+func (s *service) Debug(message string, opts ...StatusOption) {
+	s.publish(LevelDebug, message, opts...)
+	slog.Debug(message)
+}
+
+func (s *service) publish(level Level, messageText string, opts ...StatusOption) {
+	statusMsg := StatusMessage{
+		Level:     level,
+		Message:   messageText,
+		Timestamp: time.Now(),
+	}
+
+	// Apply all options
+	for _, opt := range opts {
+		opt(&statusMsg)
+	}
+
+	s.broker.Publish(EventStatusPublished, statusMsg)
+}
+
+func (s *service) Subscribe(ctx context.Context) <-chan pubsub.Event[StatusMessage] {
+	return s.broker.Subscribe(ctx)
+}
+
+func Info(message string, opts ...StatusOption) {
+	GetService().Info(message, opts...)
+}
+
+func Warn(message string, opts ...StatusOption) {
+	GetService().Warn(message, opts...)
+}
+
+func Error(message string, opts ...StatusOption) {
+	GetService().Error(message, opts...)
+}
+
+func Debug(message string, opts ...StatusOption) {
+	GetService().Debug(message, opts...)
+}
+
+func Subscribe(ctx context.Context) <-chan pubsub.Event[StatusMessage] {
+	return GetService().Subscribe(ctx)
+}

packages/tui/internal/tui/app/app.go

@@ -0,0 +1,215 @@
+package app
+
+import (
+	"context"
+	"fmt"
+
+	"log/slog"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/fileutil"
+	"github.com/sst/opencode/internal/status"
+	"github.com/sst/opencode/internal/tui/state"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+	"github.com/sst/opencode/pkg/client"
+)
+
+type App struct {
+	Client   *client.ClientWithResponses
+	Events   *client.Client
+	Provider *client.ProviderInfo
+	Model    *client.ProviderModel
+	Session  *client.SessionInfo
+	Messages []client.MessageInfo
+	Status   status.Service
+
+	PrimaryAgentOLD AgentService
+
+	// UI state
+	filepickerOpen       bool
+	completionDialogOpen bool
+}
+
+func New(ctx context.Context) (*App, error) {
+	// Initialize status service (still needed for UI notifications)
+	err := status.InitService()
+	if err != nil {
+		slog.Error("Failed to initialize status service", "error", err)
+		return nil, err
+	}
+
+	// Initialize file utilities
+	fileutil.Init()
+
+	// Create HTTP client
+	url := "http://localhost:16713"
+	httpClient, err := client.NewClientWithResponses(url)
+	if err != nil {
+		slog.Error("Failed to create client", "error", err)
+		return nil, err
+	}
+	eventClient, err := client.NewClient(url)
+	if err != nil {
+		slog.Error("Failed to create event client", "error", err)
+		return nil, err
+	}
+
+	// Create service bridges
+	agentBridge := NewAgentServiceBridge(httpClient)
+
+	app := &App{
+		Client:          httpClient,
+		Events:          eventClient,
+		Session:         &client.SessionInfo{},
+		Messages:        []client.MessageInfo{},
+		PrimaryAgentOLD: agentBridge,
+		Status:          status.GetService(),
+	}
+
+	// Initialize theme based on configuration
+	app.initTheme()
+
+	return app, nil
+}
+
+type Attachment struct {
+	FilePath string
+	FileName string
+	MimeType string
+	Content  []byte
+}
+
+// Create creates a new session
+func (a *App) SendChatMessage(ctx context.Context, text string, attachments []Attachment) tea.Cmd {
+	var cmds []tea.Cmd
+	if a.Session.Id == "" {
+		resp, err := a.Client.PostSessionCreateWithResponse(ctx)
+		if err != nil {
+			status.Error(err.Error())
+			return nil
+		}
+		if resp.StatusCode() != 200 {
+			status.Error(fmt.Sprintf("failed to create session: %d", resp.StatusCode()))
+			return nil
+		}
+
+		info := resp.JSON200
+		a.Session = info
+
+		cmds = append(cmds, util.CmdHandler(state.SessionSelectedMsg(info)))
+	}
+
+	// TODO: Handle attachments when API supports them
+	if len(attachments) > 0 {
+		// For now, ignore attachments
+		// return "", fmt.Errorf("attachments not supported yet")
+	}
+
+	part := client.MessagePart{}
+	part.FromMessagePartText(client.MessagePartText{
+		Type: "text",
+		Text: text,
+	})
+	parts := []client.MessagePart{part}
+
+	go a.Client.PostSessionChatWithResponse(ctx, client.PostSessionChatJSONRequestBody{
+		SessionID:  a.Session.Id,
+		Parts:      parts,
+		ProviderID: a.Provider.Id,
+		ModelID:    a.Model.Id,
+	})
+
+	// The actual response will come through SSE
+	// For now, just return success
+	return tea.Batch(cmds...)
+}
+
+func (a *App) ListSessions(ctx context.Context) ([]client.SessionInfo, error) {
+	resp, err := a.Client.PostSessionListWithResponse(ctx)
+	if err != nil {
+		return nil, err
+	}
+	if resp.StatusCode() != 200 {
+		return nil, fmt.Errorf("failed to list sessions: %d", resp.StatusCode())
+	}
+	if resp.JSON200 == nil {
+		return []client.SessionInfo{}, nil
+	}
+
+	sessions := *resp.JSON200
+	return sessions, nil
+}
+
+func (a *App) ListMessages(ctx context.Context, sessionId string) ([]client.MessageInfo, error) {
+	resp, err := a.Client.PostSessionMessagesWithResponse(ctx, client.PostSessionMessagesJSONRequestBody{SessionID: sessionId})
+	if err != nil {
+		return nil, err
+	}
+	if resp.StatusCode() != 200 {
+		return nil, fmt.Errorf("failed to list messages: %d", resp.StatusCode())
+	}
+	if resp.JSON200 == nil {
+		return []client.MessageInfo{}, nil
+	}
+	messages := *resp.JSON200
+	return messages, nil
+}
+
+func (a *App) ListProviders(ctx context.Context) ([]client.ProviderInfo, error) {
+	resp, err := a.Client.PostProviderListWithResponse(ctx)
+	if err != nil {
+		return nil, err
+	}
+	if resp.StatusCode() != 200 {
+		return nil, fmt.Errorf("failed to list sessions: %d", resp.StatusCode())
+	}
+	if resp.JSON200 == nil {
+		return []client.ProviderInfo{}, nil
+	}
+
+	providers := *resp.JSON200
+	return providers, nil
+}
+
+// initTheme sets the application theme based on the configuration
+func (app *App) initTheme() {
+	cfg := config.Get()
+	if cfg == nil || cfg.TUI.Theme == "" {
+		return // Use default theme
+	}
+
+	// Try to set the theme from config
+	err := theme.SetTheme(cfg.TUI.Theme)
+	if err != nil {
+		slog.Warn("Failed to set theme from config, using default theme", "theme", cfg.TUI.Theme, "error", err)
+	} else {
+		slog.Debug("Set theme from config", "theme", cfg.TUI.Theme)
+	}
+}
+
+// IsFilepickerOpen returns whether the filepicker is currently open
+func (app *App) IsFilepickerOpen() bool {
+	return app.filepickerOpen
+}
+
+// SetFilepickerOpen sets the state of the filepicker
+func (app *App) SetFilepickerOpen(open bool) {
+	app.filepickerOpen = open
+}
+
+// IsCompletionDialogOpen returns whether the completion dialog is currently open
+func (app *App) IsCompletionDialogOpen() bool {
+	return app.completionDialogOpen
+}
+
+// SetCompletionDialogOpen sets the state of the completion dialog
+func (app *App) SetCompletionDialogOpen(open bool) {
+	app.completionDialogOpen = open
+}
+
+// Shutdown performs a clean shutdown of the application
+func (app *App) Shutdown() {
+	// TODO: cleanup?
+}

packages/tui/internal/tui/app/bridge.go

@@ -0,0 +1,42 @@
+package app
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/sst/opencode/pkg/client"
+)
+
+// AgentServiceBridge provides a minimal agent service that sends messages to the API
+type AgentServiceBridge struct {
+	client *client.ClientWithResponses
+}
+
+// NewAgentServiceBridge creates a new agent service bridge
+func NewAgentServiceBridge(client *client.ClientWithResponses) *AgentServiceBridge {
+	return &AgentServiceBridge{client: client}
+}
+
+// Cancel cancels the current generation - NOT IMPLEMENTED IN API YET
+func (a *AgentServiceBridge) Cancel(sessionID string) error {
+	// TODO: Not implemented in TypeScript API yet
+	return nil
+}
+
+// IsBusy checks if the agent is busy - NOT IMPLEMENTED IN API YET
+func (a *AgentServiceBridge) IsBusy() bool {
+	// TODO: Not implemented in TypeScript API yet
+	return false
+}
+
+// IsSessionBusy checks if the agent is busy for a specific session - NOT IMPLEMENTED IN API YET
+func (a *AgentServiceBridge) IsSessionBusy(sessionID string) bool {
+	// TODO: Not implemented in TypeScript API yet
+	return false
+}
+
+// CompactSession compacts a session - NOT IMPLEMENTED IN API YET
+func (a *AgentServiceBridge) CompactSession(ctx context.Context, sessionID string, force bool) error {
+	// TODO: Not implemented in TypeScript API yet
+	return fmt.Errorf("session compaction not implemented in API")
+}

packages/tui/internal/tui/app/interfaces.go

@@ -0,0 +1,13 @@
+package app
+
+import (
+	"context"
+)
+
+// AgentService defines the interface for agent operations
+type AgentService interface {
+	Cancel(sessionID string) error
+	IsBusy() bool
+	IsSessionBusy(sessionID string) bool
+	CompactSession(ctx context.Context, sessionID string, force bool) error
+}

packages/tui/internal/tui/components/chat/chat.go

@@ -0,0 +1,133 @@
+package chat
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/x/ansi"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/version"
+)
+
+type SendMsg struct {
+	Text        string
+	Attachments []app.Attachment
+}
+
+func header(width int) string {
+	return lipgloss.JoinVertical(
+		lipgloss.Top,
+		logo(width),
+		repo(width),
+		"",
+		cwd(width),
+	)
+}
+
+func lspsConfigured(width int) string {
+	// cfg := config.Get()
+	title := "LSP Servers"
+	title = ansi.Truncate(title, width, "…")
+
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	lsps := baseStyle.
+		Width(width).
+		Foreground(t.Primary()).
+		Bold(true).
+		Render(title)
+
+	// Get LSP names and sort them for consistent ordering
+	var lspNames []string
+	// for name := range cfg.LSP {
+	// 	lspNames = append(lspNames, name)
+	// }
+	sort.Strings(lspNames)
+
+	var lspViews []string
+	// for _, name := range lspNames {
+	// lsp := cfg.LSP[name]
+	// lspName := baseStyle.
+	// 	Foreground(t.Text()).
+	// 	Render(fmt.Sprintf("• %s", name))
+
+	// cmd := lsp.Command
+	// cmd = ansi.Truncate(cmd, width-lipgloss.Width(lspName)-3, "…")
+
+	// lspPath := baseStyle.
+	// 	Foreground(t.TextMuted()).
+	// 	Render(fmt.Sprintf(" (%s)", cmd))
+
+	// lspViews = append(lspViews,
+	// 	baseStyle.
+	// 		Width(width).
+	// 		Render(
+	// 			lipgloss.JoinHorizontal(
+	// 				lipgloss.Left,
+	// 				lspName,
+	// 				lspPath,
+	// 			),
+	// 		),
+	// )
+	// }
+
+	return baseStyle.
+		Width(width).
+		Render(
+			lipgloss.JoinVertical(
+				lipgloss.Left,
+				lsps,
+				lipgloss.JoinVertical(
+					lipgloss.Left,
+					lspViews...,
+				),
+			),
+		)
+}
+
+func logo(width int) string {
+	logo := fmt.Sprintf("%s %s", styles.OpenCodeIcon, "OpenCode")
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	versionText := baseStyle.
+		Foreground(t.TextMuted()).
+		Render(version.Version)
+
+	return baseStyle.
+		Bold(true).
+		Width(width).
+		Render(
+			lipgloss.JoinHorizontal(
+				lipgloss.Left,
+				logo,
+				" ",
+				versionText,
+			),
+		)
+}
+
+func repo(width int) string {
+	repo := "github.com/sst/opencode"
+	t := theme.CurrentTheme()
+
+	return styles.BaseStyle().
+		Foreground(t.TextMuted()).
+		Width(width).
+		Render(repo)
+}
+
+func cwd(width int) string {
+	cwd := fmt.Sprintf("cwd: %s", config.WorkingDirectory())
+	t := theme.CurrentTheme()
+
+	return styles.BaseStyle().
+		Foreground(t.TextMuted()).
+		Width(width).
+		Render(cwd)
+}

packages/tui/internal/tui/components/chat/editor.go

@@ -0,0 +1,406 @@
+package chat
+
+import (
+	"fmt"
+	"log/slog"
+	"os"
+	"os/exec"
+	"slices"
+	"strings"
+	"unicode"
+
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/textarea"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/status"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/components/dialog"
+	"github.com/sst/opencode/internal/tui/image"
+	"github.com/sst/opencode/internal/tui/layout"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+type editorCmp struct {
+	width          int
+	height         int
+	app            *app.App
+	textarea       textarea.Model
+	attachments    []app.Attachment
+	deleteMode     bool
+	history        []string
+	historyIndex   int
+	currentMessage string
+}
+
+type EditorKeyMaps struct {
+	Send        key.Binding
+	OpenEditor  key.Binding
+	Paste       key.Binding
+	HistoryUp   key.Binding
+	HistoryDown key.Binding
+}
+
+type bluredEditorKeyMaps struct {
+	Send       key.Binding
+	Focus      key.Binding
+	OpenEditor key.Binding
+}
+type DeleteAttachmentKeyMaps struct {
+	AttachmentDeleteMode key.Binding
+	Escape               key.Binding
+	DeleteAllAttachments key.Binding
+}
+
+var editorMaps = EditorKeyMaps{
+	Send: key.NewBinding(
+		key.WithKeys("enter", "ctrl+s"),
+		key.WithHelp("enter", "send message"),
+	),
+	OpenEditor: key.NewBinding(
+		key.WithKeys("ctrl+e"),
+		key.WithHelp("ctrl+e", "open editor"),
+	),
+	Paste: key.NewBinding(
+		key.WithKeys("ctrl+v"),
+		key.WithHelp("ctrl+v", "paste content"),
+	),
+	HistoryUp: key.NewBinding(
+		key.WithKeys("up"),
+		key.WithHelp("up", "previous message"),
+	),
+	HistoryDown: key.NewBinding(
+		key.WithKeys("down"),
+		key.WithHelp("down", "next message"),
+	),
+}
+
+var DeleteKeyMaps = DeleteAttachmentKeyMaps{
+	AttachmentDeleteMode: key.NewBinding(
+		key.WithKeys("ctrl+r"),
+		key.WithHelp("ctrl+r+{i}", "delete attachment at index i"),
+	),
+	Escape: key.NewBinding(
+		key.WithKeys("esc"),
+		key.WithHelp("esc", "cancel delete mode"),
+	),
+	DeleteAllAttachments: key.NewBinding(
+		key.WithKeys("r"),
+		key.WithHelp("ctrl+r+r", "delete all attachments"),
+	),
+}
+
+const (
+	maxAttachments = 5
+)
+
+func (m *editorCmp) openEditor(value string) tea.Cmd {
+	editor := os.Getenv("EDITOR")
+	if editor == "" {
+		editor = "nvim"
+	}
+
+	tmpfile, err := os.CreateTemp("", "msg_*.md")
+	tmpfile.WriteString(value)
+	if err != nil {
+		status.Error(err.Error())
+		return nil
+	}
+	tmpfile.Close()
+	c := exec.Command(editor, tmpfile.Name()) //nolint:gosec
+	c.Stdin = os.Stdin
+	c.Stdout = os.Stdout
+	c.Stderr = os.Stderr
+	return tea.ExecProcess(c, func(err error) tea.Msg {
+		if err != nil {
+			status.Error(err.Error())
+			return nil
+		}
+		content, err := os.ReadFile(tmpfile.Name())
+		if err != nil {
+			status.Error(err.Error())
+			return nil
+		}
+		if len(content) == 0 {
+			status.Warn("Message is empty")
+			return nil
+		}
+		os.Remove(tmpfile.Name())
+		attachments := m.attachments
+		m.attachments = nil
+		return SendMsg{
+			Text:        string(content),
+			Attachments: attachments,
+		}
+	})
+}
+
+func (m *editorCmp) Init() tea.Cmd {
+	return textarea.Blink
+}
+
+func (m *editorCmp) send() tea.Cmd {
+	value := m.textarea.Value()
+	m.textarea.Reset()
+	attachments := m.attachments
+
+	// Save to history if not empty and not a duplicate of the last entry
+	if value != "" {
+		if len(m.history) == 0 || m.history[len(m.history)-1] != value {
+			m.history = append(m.history, value)
+		}
+		m.historyIndex = len(m.history)
+		m.currentMessage = ""
+	}
+
+	m.attachments = nil
+	if value == "" {
+		return nil
+	}
+	return tea.Batch(
+		util.CmdHandler(SendMsg{
+			Text:        value,
+			Attachments: attachments,
+		}),
+	)
+}
+
+func (m *editorCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmd tea.Cmd
+	switch msg := msg.(type) {
+	case dialog.ThemeChangedMsg:
+		m.textarea = CreateTextArea(&m.textarea)
+	case dialog.CompletionSelectedMsg:
+		existingValue := m.textarea.Value()
+		modifiedValue := strings.Replace(existingValue, msg.SearchString, msg.CompletionValue, 1)
+
+		m.textarea.SetValue(modifiedValue)
+		return m, nil
+	case dialog.AttachmentAddedMsg:
+		if len(m.attachments) >= maxAttachments {
+			status.Error(fmt.Sprintf("cannot add more than %d images", maxAttachments))
+			return m, cmd
+		}
+		m.attachments = append(m.attachments, msg.Attachment)
+	case tea.KeyMsg:
+		if key.Matches(msg, DeleteKeyMaps.AttachmentDeleteMode) {
+			m.deleteMode = true
+			return m, nil
+		}
+		if key.Matches(msg, DeleteKeyMaps.DeleteAllAttachments) && m.deleteMode {
+			m.deleteMode = false
+			m.attachments = nil
+			return m, nil
+		}
+		if m.deleteMode && len(msg.Runes) > 0 && unicode.IsDigit(msg.Runes[0]) {
+			num := int(msg.Runes[0] - '0')
+			m.deleteMode = false
+			if num < 10 && len(m.attachments) > num {
+				if num == 0 {
+					m.attachments = m.attachments[num+1:]
+				} else {
+					m.attachments = slices.Delete(m.attachments, num, num+1)
+				}
+				return m, nil
+			}
+		}
+		if key.Matches(msg, messageKeys.PageUp) || key.Matches(msg, messageKeys.PageDown) ||
+			key.Matches(msg, messageKeys.HalfPageUp) || key.Matches(msg, messageKeys.HalfPageDown) {
+			return m, nil
+		}
+		if key.Matches(msg, editorMaps.OpenEditor) {
+			// if m.app.PrimaryAgentOLD.IsSessionBusy(m.app.CurrentSessionOLD.ID) {
+			// 	status.Warn("Agent is working, please wait...")
+			// 	return m, nil
+			// }
+			value := m.textarea.Value()
+			m.textarea.Reset()
+			return m, m.openEditor(value)
+		}
+		if key.Matches(msg, DeleteKeyMaps.Escape) {
+			m.deleteMode = false
+			return m, nil
+		}
+
+		if key.Matches(msg, editorMaps.Paste) {
+			imageBytes, text, err := image.GetImageFromClipboard()
+			if err != nil {
+				slog.Error(err.Error())
+				return m, cmd
+			}
+			if len(imageBytes) != 0 {
+				attachmentName := fmt.Sprintf("clipboard-image-%d", len(m.attachments))
+				attachment := app.Attachment{FilePath: attachmentName, FileName: attachmentName, Content: imageBytes, MimeType: "image/png"}
+				m.attachments = append(m.attachments, attachment)
+			} else {
+				m.textarea.SetValue(m.textarea.Value() + text)
+			}
+			return m, cmd
+		}
+
+		// Handle history navigation with up/down arrow keys
+		// Only handle history navigation if the filepicker is not open and completion dialog is not open
+		if m.textarea.Focused() && key.Matches(msg, editorMaps.HistoryUp) && !m.app.IsFilepickerOpen() && !m.app.IsCompletionDialogOpen() {
+			// Get the current line number
+			currentLine := m.textarea.Line()
+
+			// Only navigate history if we're at the first line
+			if currentLine == 0 && len(m.history) > 0 {
+				// Save current message if we're just starting to navigate
+				if m.historyIndex == len(m.history) {
+					m.currentMessage = m.textarea.Value()
+				}
+
+				// Go to previous message in history
+				if m.historyIndex > 0 {
+					m.historyIndex--
+					m.textarea.SetValue(m.history[m.historyIndex])
+				}
+				return m, nil
+			}
+		}
+
+		if m.textarea.Focused() && key.Matches(msg, editorMaps.HistoryDown) && !m.app.IsFilepickerOpen() && !m.app.IsCompletionDialogOpen() {
+			// Get the current line number and total lines
+			currentLine := m.textarea.Line()
+			value := m.textarea.Value()
+			lines := strings.Split(value, "\n")
+			totalLines := len(lines)
+
+			// Only navigate history if we're at the last line
+			if currentLine == totalLines-1 {
+				if m.historyIndex < len(m.history)-1 {
+					// Go to next message in history
+					m.historyIndex++
+					m.textarea.SetValue(m.history[m.historyIndex])
+				} else if m.historyIndex == len(m.history)-1 {
+					// Return to the current message being composed
+					m.historyIndex = len(m.history)
+					m.textarea.SetValue(m.currentMessage)
+				}
+				return m, nil
+			}
+		}
+
+		// Handle Enter key
+		if m.textarea.Focused() && key.Matches(msg, editorMaps.Send) {
+			value := m.textarea.Value()
+			if len(value) > 0 && value[len(value)-1] == '\\' {
+				// If the last character is a backslash, remove it and add a newline
+				m.textarea.SetValue(value[:len(value)-1] + "\n")
+				return m, nil
+			} else {
+				// Otherwise, send the message
+				return m, m.send()
+			}
+		}
+
+	}
+	m.textarea, cmd = m.textarea.Update(msg)
+	return m, cmd
+}
+
+func (m *editorCmp) View() string {
+	t := theme.CurrentTheme()
+
+	// Style the prompt with theme colors
+	style := lipgloss.NewStyle().
+		Padding(0, 0, 0, 1).
+		Bold(true).
+		Foreground(t.Primary())
+
+	if len(m.attachments) == 0 {
+		return lipgloss.JoinHorizontal(lipgloss.Top, style.Render(">"), m.textarea.View())
+	}
+	m.textarea.SetHeight(m.height - 1)
+	return lipgloss.JoinVertical(lipgloss.Top,
+		m.attachmentsContent(),
+		lipgloss.JoinHorizontal(lipgloss.Top, style.Render(">"),
+			m.textarea.View()),
+	)
+}
+
+func (m *editorCmp) SetSize(width, height int) tea.Cmd {
+	m.width = width
+	m.height = height
+	m.textarea.SetWidth(width - 3) // account for the prompt and padding right
+	m.textarea.SetHeight(height)
+	return nil
+}
+
+func (m *editorCmp) GetSize() (int, int) {
+	return m.textarea.Width(), m.textarea.Height()
+}
+
+func (m *editorCmp) attachmentsContent() string {
+	var styledAttachments []string
+	t := theme.CurrentTheme()
+	attachmentStyles := styles.BaseStyle().
+		MarginLeft(1).
+		Background(t.TextMuted()).
+		Foreground(t.Text())
+	for i, attachment := range m.attachments {
+		var filename string
+		if len(attachment.FileName) > 10 {
+			filename = fmt.Sprintf(" %s %s...", styles.DocumentIcon, attachment.FileName[0:7])
+		} else {
+			filename = fmt.Sprintf(" %s %s", styles.DocumentIcon, attachment.FileName)
+		}
+		if m.deleteMode {
+			filename = fmt.Sprintf("%d%s", i, filename)
+		}
+		styledAttachments = append(styledAttachments, attachmentStyles.Render(filename))
+	}
+	content := lipgloss.JoinHorizontal(lipgloss.Left, styledAttachments...)
+	return content
+}
+
+func (m *editorCmp) BindingKeys() []key.Binding {
+	bindings := []key.Binding{}
+	bindings = append(bindings, layout.KeyMapToSlice(editorMaps)...)
+	bindings = append(bindings, layout.KeyMapToSlice(DeleteKeyMaps)...)
+	return bindings
+}
+
+func CreateTextArea(existing *textarea.Model) textarea.Model {
+	t := theme.CurrentTheme()
+	bgColor := t.Background()
+	textColor := t.Text()
+	textMutedColor := t.TextMuted()
+
+	ta := textarea.New()
+	ta.BlurredStyle.Base = styles.BaseStyle().Background(bgColor).Foreground(textColor)
+	ta.BlurredStyle.CursorLine = styles.BaseStyle().Background(bgColor)
+	ta.BlurredStyle.Placeholder = styles.BaseStyle().Background(bgColor).Foreground(textMutedColor)
+	ta.BlurredStyle.Text = styles.BaseStyle().Background(bgColor).Foreground(textColor)
+	ta.FocusedStyle.Base = styles.BaseStyle().Background(bgColor).Foreground(textColor)
+	ta.FocusedStyle.CursorLine = styles.BaseStyle().Background(bgColor)
+	ta.FocusedStyle.Placeholder = styles.BaseStyle().Background(bgColor).Foreground(textMutedColor)
+	ta.FocusedStyle.Text = styles.BaseStyle().Background(bgColor).Foreground(textColor)
+
+	ta.Prompt = " "
+	ta.ShowLineNumbers = false
+	ta.CharLimit = -1
+
+	if existing != nil {
+		ta.SetValue(existing.Value())
+		ta.SetWidth(existing.Width())
+		ta.SetHeight(existing.Height())
+	}
+
+	ta.Focus()
+	return ta
+}
+
+func NewEditorCmp(app *app.App) tea.Model {
+	ta := CreateTextArea(nil)
+	return &editorCmp{
+		app:            app,
+		textarea:       ta,
+		history:        []string{},
+		historyIndex:   0,
+		currentMessage: "",
+	}
+}

packages/tui/internal/tui/components/chat/message.go

@@ -0,0 +1,716 @@
+package chat
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/charmbracelet/lipgloss"
+	"github.com/charmbracelet/x/ansi"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/diff"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/pkg/client"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
+)
+
+const (
+	maxResultHeight = 10
+)
+
+func toMarkdown(content string, width int) string {
+	r := styles.GetMarkdownRenderer(width)
+	rendered, _ := r.Render(content)
+	return strings.TrimSuffix(rendered, "\n")
+}
+
+func renderUserMessage(msg client.MessageInfo, width int) string {
+	t := theme.CurrentTheme()
+	style := styles.BaseStyle().
+		BorderLeft(true).
+		Foreground(t.TextMuted()).
+		BorderForeground(t.Secondary()).
+		BorderStyle(lipgloss.ThickBorder())
+
+	baseStyle := styles.BaseStyle()
+	// var styledAttachments []string
+	// attachmentStyles := baseStyle.
+	// 	MarginLeft(1).
+	// 	Background(t.TextMuted()).
+	// 	Foreground(t.Text())
+	// for _, attachment := range msg.BinaryContent() {
+	// 	file := filepath.Base(attachment.Path)
+	// 	var filename string
+	// 	if len(file) > 10 {
+	// 		filename = fmt.Sprintf(" %s %s...", styles.DocumentIcon, file[0:7])
+	// 	} else {
+	// 		filename = fmt.Sprintf(" %s %s", styles.DocumentIcon, file)
+	// 	}
+	// 	styledAttachments = append(styledAttachments, attachmentStyles.Render(filename))
+	// }
+
+	// Add timestamp info
+	timestamp := time.UnixMilli(int64(msg.Metadata.Time.Created)).Local().Format("02 Jan 2006 03:04 PM")
+	username, _ := config.GetUsername()
+	info := baseStyle.
+		Foreground(t.TextMuted()).
+		Render(fmt.Sprintf(" %s (%s)", username, timestamp))
+
+	content := ""
+	// if len(styledAttachments) > 0 {
+	// 	attachmentContent := baseStyle.Width(width).Render(lipgloss.JoinHorizontal(lipgloss.Left, styledAttachments...))
+	// 	content = renderMessage(msg.Content().String(), true, isFocused, width, append(info, attachmentContent)...)
+	// } else {
+	for _, p := range msg.Parts {
+		part, err := p.ValueByDiscriminator()
+		if err != nil {
+			continue //TODO: handle error?
+		}
+
+		switch part.(type) {
+		case client.MessagePartText:
+			textPart := part.(client.MessagePartText)
+			text := toMarkdown(textPart.Text, width)
+			content = style.Render(lipgloss.JoinVertical(lipgloss.Left, text, info))
+		}
+	}
+
+	return styles.ForceReplaceBackgroundWithLipgloss(content, t.Background())
+}
+
+func convertToMap(input *any) (map[string]any, bool) {
+	if input == nil {
+		return nil, false // Handle nil pointer
+	}
+	value := *input                 // Dereference the pointer to get the interface value
+	m, ok := value.(map[string]any) // Type assertion
+	return m, ok
+}
+
+func renderAssistantMessage(
+	msg client.MessageInfo,
+	width int,
+	showToolMessages bool,
+) string {
+	t := theme.CurrentTheme()
+	style := styles.BaseStyle().
+		BorderLeft(true).
+		Foreground(t.TextMuted()).
+		BorderForeground(t.Primary()).
+		BorderStyle(lipgloss.ThickBorder())
+	toolStyle := styles.BaseStyle().
+		BorderLeft(true).
+		Foreground(t.TextMuted()).
+		BorderForeground(t.TextMuted()).
+		BorderStyle(lipgloss.ThickBorder())
+
+	baseStyle := styles.BaseStyle()
+	messages := []string{}
+
+	// content := strings.TrimSpace(msg.Content().String())
+	// thinking := msg.IsThinking()
+	// thinkingContent := msg.ReasoningContent().Thinking
+	// finished := msg.IsFinished()
+	// finishData := msg.FinishPart()
+
+	// Add timestamp info
+	timestamp := time.UnixMilli(int64(msg.Metadata.Time.Created)).Local().Format("02 Jan 2006 03:04 PM")
+	modelName := msg.Metadata.Assistant.ModelID
+	info := baseStyle.
+		Foreground(t.TextMuted()).
+		Render(fmt.Sprintf(" %s (%s)", modelName, timestamp))
+
+	for _, p := range msg.Parts {
+		part, err := p.ValueByDiscriminator()
+		if err != nil {
+			continue //TODO: handle error?
+		}
+
+		switch part.(type) {
+		case client.MessagePartText:
+			textPart := part.(client.MessagePartText)
+			text := toMarkdown(textPart.Text, width)
+			content := style.Render(lipgloss.JoinVertical(lipgloss.Left, text, info))
+			message := styles.ForceReplaceBackgroundWithLipgloss(content, t.Background())
+			messages = append(messages, message)
+
+		case client.MessagePartToolInvocation:
+			if !showToolMessages {
+				continue
+			}
+
+			toolInvocationPart := part.(client.MessagePartToolInvocation)
+			toolInvocation, _ := toolInvocationPart.ToolInvocation.ValueByDiscriminator()
+			switch toolInvocation.(type) {
+			case client.MessageToolInvocationToolCall:
+				toolCall := toolInvocation.(client.MessageToolInvocationToolCall)
+				toolName := renderToolName(toolCall.ToolName)
+
+				var toolArgs []string
+				toolMap, _ := convertToMap(toolCall.Args)
+				for _, arg := range toolMap {
+					toolArgs = append(toolArgs, fmt.Sprintf("%v", arg))
+				}
+				params := renderParams(width-lipgloss.Width(toolName)-1, toolArgs...)
+				title := styles.Padded().Render(fmt.Sprintf("%s: %s", toolName, params))
+
+				content := toolStyle.Render(lipgloss.JoinVertical(lipgloss.Left,
+					title,
+					" In progress...",
+				))
+				message := styles.ForceReplaceBackgroundWithLipgloss(content, t.Background())
+				messages = append(messages, message)
+
+			case client.MessageToolInvocationToolResult:
+				toolInvocationResult := toolInvocation.(client.MessageToolInvocationToolResult)
+				toolName := renderToolName(toolInvocationResult.ToolName)
+				var toolArgs []string
+				toolMap, _ := convertToMap(toolInvocationResult.Args)
+				for _, arg := range toolMap {
+					toolArgs = append(toolArgs, fmt.Sprintf("%v", arg))
+				}
+				params := renderParams(width-lipgloss.Width(toolName)-1, toolArgs...)
+				title := styles.Padded().Render(fmt.Sprintf("%s: %s", toolName, params))
+				metadata := msg.Metadata.Tool[toolInvocationResult.ToolCallId].(map[string]any)
+
+				var markdown string
+				if toolInvocationResult.ToolName == "edit" {
+					filename := toolMap["filePath"].(string)
+					title = styles.Padded().Render(fmt.Sprintf("%s: %s", toolName, filename))
+					oldString := toolMap["oldString"].(string)
+					newString := toolMap["newString"].(string)
+					patch, _, _ := diff.GenerateDiff(oldString, newString, filename)
+					formattedDiff, _ := diff.FormatDiff(patch, diff.WithTotalWidth(width))
+					markdown = strings.TrimSpace(formattedDiff)
+					message := toolStyle.Render(lipgloss.JoinVertical(lipgloss.Left,
+						title,
+						markdown,
+					))
+					messages = append(messages, message)
+				} else if toolInvocationResult.ToolName == "view" {
+					result := toolInvocationResult.Result
+					if metadata["preview"] != nil {
+						result = metadata["preview"].(string)
+					}
+					filename := toolMap["filePath"].(string)
+					ext := filepath.Ext(filename)
+					if ext == "" {
+						ext = ""
+					} else {
+						ext = strings.ToLower(ext[1:])
+					}
+					result = fmt.Sprintf("```%s\n%s\n```", ext, truncateHeight(result, 10))
+					markdown = toMarkdown(result, width)
+					content := toolStyle.Render(lipgloss.JoinVertical(lipgloss.Left,
+						title,
+						markdown,
+					))
+					message := styles.ForceReplaceBackgroundWithLipgloss(content, t.Background())
+					messages = append(messages, message)
+				} else {
+					result := truncateHeight(strings.TrimSpace(toolInvocationResult.Result), 10)
+					markdown = toMarkdown(result, width)
+					content := toolStyle.Render(lipgloss.JoinVertical(lipgloss.Left,
+						title,
+						markdown,
+					))
+					message := styles.ForceReplaceBackgroundWithLipgloss(content, t.Background())
+					messages = append(messages, message)
+				}
+			}
+		}
+	}
+
+	// if finished {
+	// 	// Add finish info if available
+	// 	switch finishData.Reason {
+	// 	case message.FinishReasonCanceled:
+	// 		info = append(info, baseStyle.
+	// 			Width(width-1).
+	// 			Foreground(t.Warning()).
+	// 			Render("(canceled)"),
+	// 		)
+	// 	case message.FinishReasonError:
+	// 		info = append(info, baseStyle.
+	// 			Width(width-1).
+	// 			Foreground(t.Error()).
+	// 			Render("(error)"),
+	// 		)
+	// 	case message.FinishReasonPermissionDenied:
+	// 		info = append(info, baseStyle.
+	// 			Width(width-1).
+	// 			Foreground(t.Info()).
+	// 			Render("(permission denied)"),
+	// 		)
+	// 	}
+	// }
+
+	// if content != "" || (finished && finishData.Reason == message.FinishReasonEndTurn) {
+	// 	if content == "" {
+	// 		content = "*Finished without output*"
+	// 	}
+	//
+	// 	content = renderMessage(content, false, width, info...)
+	// 	messages = append(messages, content)
+	// 	// position += messages[0].height
+	// 	position++ // for the space
+	// } else if thinking && thinkingContent != "" {
+	// 	// Render the thinking content with timestamp
+	// 	content = renderMessage(thinkingContent, false, width, info...)
+	// 	messages = append(messages, content)
+	// 	position += lipgloss.Height(content)
+	// 	position++ // for the space
+	// }
+
+	// Only render tool messages if they should be shown
+	if showToolMessages {
+		// for i, toolCall := range msg.ToolCalls() {
+		// 	toolCallContent := renderToolMessage(
+		// 		toolCall,
+		// 		allMessages,
+		// 		messagesService,
+		// 		focusedUIMessageId,
+		// 		false,
+		// 		width,
+		// 		i+1,
+		// 	)
+		// 	messages = append(messages, toolCallContent)
+		// }
+	}
+
+	return strings.Join(messages, "\n\n")
+}
+
+func renderToolName(name string) string {
+	switch name {
+	// case agent.AgentToolName:
+	// 	return "Task"
+	case "ls":
+		return "List"
+	default:
+		return cases.Title(language.Und).String(name)
+	}
+}
+
+func renderToolAction(name string) string {
+	switch name {
+	// case agent.AgentToolName:
+	// 	return "Preparing prompt..."
+	case "bash":
+		return "Building command..."
+	case "edit":
+		return "Preparing edit..."
+	case "fetch":
+		return "Writing fetch..."
+	case "glob":
+		return "Finding files..."
+	case "grep":
+		return "Searching content..."
+	case "ls":
+		return "Listing directory..."
+	case "view":
+		return "Reading file..."
+	case "write":
+		return "Preparing write..."
+	case "patch":
+		return "Preparing patch..."
+	case "batch":
+		return "Running batch operations..."
+	}
+	return "Working..."
+}
+
+// renders params, params[0] (params[1]=params[2] ....)
+func renderParams(paramsWidth int, params ...string) string {
+	if len(params) == 0 {
+		return ""
+	}
+	mainParam := params[0]
+	if len(mainParam) > paramsWidth {
+		mainParam = mainParam[:paramsWidth-3] + "..."
+	}
+
+	if len(params) == 1 {
+		return mainParam
+	}
+	otherParams := params[1:]
+	// create pairs of key/value
+	// if odd number of params, the last one is a key without value
+	if len(otherParams)%2 != 0 {
+		otherParams = append(otherParams, "")
+	}
+	parts := make([]string, 0, len(otherParams)/2)
+	for i := 0; i < len(otherParams); i += 2 {
+		key := otherParams[i]
+		value := otherParams[i+1]
+		if value == "" {
+			continue
+		}
+		parts = append(parts, fmt.Sprintf("%s=%s", key, value))
+	}
+
+	partsRendered := strings.Join(parts, ", ")
+	remainingWidth := paramsWidth - lipgloss.Width(partsRendered) - 5 // for the space
+	if remainingWidth < 30 {
+		// No space for the params, just show the main
+		return mainParam
+	}
+
+	if len(parts) > 0 {
+		mainParam = fmt.Sprintf("%s (%s)", mainParam, strings.Join(parts, ", "))
+	}
+
+	return ansi.Truncate(mainParam, paramsWidth, "...")
+}
+
+func removeWorkingDirPrefix(path string) string {
+	wd := config.WorkingDirectory()
+	if strings.HasPrefix(path, wd) {
+		path = strings.TrimPrefix(path, wd)
+	}
+	if strings.HasPrefix(path, "/") {
+		path = strings.TrimPrefix(path, "/")
+	}
+	if strings.HasPrefix(path, "./") {
+		path = strings.TrimPrefix(path, "./")
+	}
+	if strings.HasPrefix(path, "../") {
+		path = strings.TrimPrefix(path, "../")
+	}
+	return path
+}
+
+func renderToolParams(paramWidth int, toolCall any) string {
+	params := ""
+	switch toolCall {
+	// // case agent.AgentToolName:
+	// // 	var params agent.AgentParams
+	// // 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// // 	prompt := strings.ReplaceAll(params.Prompt, "\n", " ")
+	// // 	return renderParams(paramWidth, prompt)
+	// case "bash":
+	// 	var params tools.BashParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	command := strings.ReplaceAll(params.Command, "\n", " ")
+	// 	return renderParams(paramWidth, command)
+	// case "edit":
+	// 	var params tools.EditParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	filePath := removeWorkingDirPrefix(params.FilePath)
+	// 	return renderParams(paramWidth, filePath)
+	// case "fetch":
+	// 	var params tools.FetchParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	url := params.URL
+	// 	toolParams := []string{
+	// 		url,
+	// 	}
+	// 	if params.Format != "" {
+	// 		toolParams = append(toolParams, "format", params.Format)
+	// 	}
+	// 	if params.Timeout != 0 {
+	// 		toolParams = append(toolParams, "timeout", (time.Duration(params.Timeout) * time.Second).String())
+	// 	}
+	// 	return renderParams(paramWidth, toolParams...)
+	// case tools.GlobToolName:
+	// 	var params tools.GlobParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	pattern := params.Pattern
+	// 	toolParams := []string{
+	// 		pattern,
+	// 	}
+	// 	if params.Path != "" {
+	// 		toolParams = append(toolParams, "path", params.Path)
+	// 	}
+	// 	return renderParams(paramWidth, toolParams...)
+	// case tools.GrepToolName:
+	// 	var params tools.GrepParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	pattern := params.Pattern
+	// 	toolParams := []string{
+	// 		pattern,
+	// 	}
+	// 	if params.Path != "" {
+	// 		toolParams = append(toolParams, "path", params.Path)
+	// 	}
+	// 	if params.Include != "" {
+	// 		toolParams = append(toolParams, "include", params.Include)
+	// 	}
+	// 	if params.LiteralText {
+	// 		toolParams = append(toolParams, "literal", "true")
+	// 	}
+	// 	return renderParams(paramWidth, toolParams...)
+	// case tools.LSToolName:
+	// 	var params tools.LSParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	path := params.Path
+	// 	if path == "" {
+	// 		path = "."
+	// 	}
+	// 	return renderParams(paramWidth, path)
+	// case tools.ViewToolName:
+	// 	var params tools.ViewParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	filePath := removeWorkingDirPrefix(params.FilePath)
+	// 	toolParams := []string{
+	// 		filePath,
+	// 	}
+	// 	if params.Limit != 0 {
+	// 		toolParams = append(toolParams, "limit", fmt.Sprintf("%d", params.Limit))
+	// 	}
+	// 	if params.Offset != 0 {
+	// 		toolParams = append(toolParams, "offset", fmt.Sprintf("%d", params.Offset))
+	// 	}
+	// 	return renderParams(paramWidth, toolParams...)
+	// case tools.WriteToolName:
+	// 	var params tools.WriteParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	filePath := removeWorkingDirPrefix(params.FilePath)
+	// 	return renderParams(paramWidth, filePath)
+	// case tools.BatchToolName:
+	// 	var params tools.BatchParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	return renderParams(paramWidth, fmt.Sprintf("%d parallel calls", len(params.Calls)))
+	// default:
+	// 	input := strings.ReplaceAll(toolCall, "\n", " ")
+	// 	params = renderParams(paramWidth, input)
+	}
+	return params
+}
+
+func truncateHeight(content string, height int) string {
+	lines := strings.Split(content, "\n")
+	if len(lines) > height {
+		return strings.Join(lines[:height], "\n")
+	}
+	return content
+}
+
+func renderToolResponse(toolCall any, response any, width int) string {
+	return ""
+	// t := theme.CurrentTheme()
+	// baseStyle := styles.BaseStyle()
+	//
+	// if response.IsError {
+	// 	errContent := fmt.Sprintf("Error: %s", strings.ReplaceAll(response.Content, "\n", " "))
+	// 	errContent = ansi.Truncate(errContent, width-1, "...")
+	// 	return baseStyle.
+	// 		Width(width).
+	// 		Foreground(t.Error()).
+	// 		Render(errContent)
+	// }
+	//
+	// resultContent := truncateHeight(response.Content, maxResultHeight)
+	// switch toolCall.Name {
+	// case agent.AgentToolName:
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		toMarkdown(resultContent, false, width),
+	// 		t.Background(),
+	// 	)
+	// case tools.BashToolName:
+	// 	resultContent = fmt.Sprintf("```bash\n%s\n```", resultContent)
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		toMarkdown(resultContent, width),
+	// 		t.Background(),
+	// 	)
+	// case tools.EditToolName:
+	// 	metadata := tools.EditResponseMetadata{}
+	// 	json.Unmarshal([]byte(response.Metadata), &metadata)
+	// 	formattedDiff, _ := diff.FormatDiff(metadata.Diff, diff.WithTotalWidth(width))
+	// 	return formattedDiff
+	// case tools.FetchToolName:
+	// 	var params tools.FetchParams
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	mdFormat := "markdown"
+	// 	switch params.Format {
+	// 	case "text":
+	// 		mdFormat = "text"
+	// 	case "html":
+	// 		mdFormat = "html"
+	// 	}
+	// 	resultContent = fmt.Sprintf("```%s\n%s\n```", mdFormat, resultContent)
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		toMarkdown(resultContent, width),
+	// 		t.Background(),
+	// 	)
+	// case tools.GlobToolName:
+	// 	return baseStyle.Width(width).Foreground(t.TextMuted()).Render(resultContent)
+	// case tools.GrepToolName:
+	// 	return baseStyle.Width(width).Foreground(t.TextMuted()).Render(resultContent)
+	// case tools.LSToolName:
+	// 	return baseStyle.Width(width).Foreground(t.TextMuted()).Render(resultContent)
+	// case tools.ViewToolName:
+	// 	metadata := tools.ViewResponseMetadata{}
+	// 	json.Unmarshal([]byte(response.Metadata), &metadata)
+	// 	ext := filepath.Ext(metadata.FilePath)
+	// 	if ext == "" {
+	// 		ext = ""
+	// 	} else {
+	// 		ext = strings.ToLower(ext[1:])
+	// 	}
+	// 	resultContent = fmt.Sprintf("```%s\n%s\n```", ext, truncateHeight(metadata.Content, maxResultHeight))
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		toMarkdown(resultContent, width),
+	// 		t.Background(),
+	// 	)
+	// case tools.WriteToolName:
+	// 	params := tools.WriteParams{}
+	// 	json.Unmarshal([]byte(toolCall.Input), &params)
+	// 	metadata := tools.WriteResponseMetadata{}
+	// 	json.Unmarshal([]byte(response.Metadata), &metadata)
+	// 	ext := filepath.Ext(params.FilePath)
+	// 	if ext == "" {
+	// 		ext = ""
+	// 	} else {
+	// 		ext = strings.ToLower(ext[1:])
+	// 	}
+	// 	resultContent = fmt.Sprintf("```%s\n%s\n```", ext, truncateHeight(params.Content, maxResultHeight))
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		toMarkdown(resultContent, width),
+	// 		t.Background(),
+	// 	)
+	// case tools.BatchToolName:
+	// 	var batchResult tools.BatchResult
+	// 	if err := json.Unmarshal([]byte(resultContent), &batchResult); err != nil {
+	// 		return baseStyle.Width(width).Foreground(t.Error()).Render(fmt.Sprintf("Error parsing batch result: %s", err))
+	// 	}
+	//
+	// 	var toolCalls []string
+	// 	for i, result := range batchResult.Results {
+	// 		toolName := renderToolName(result.ToolName)
+	//
+	// 		// Format the tool input as a string
+	// 		inputStr := string(result.ToolInput)
+	//
+	// 		// Format the result
+	// 		var resultStr string
+	// 		if result.Error != "" {
+	// 			resultStr = fmt.Sprintf("Error: %s", result.Error)
+	// 		} else {
+	// 			var toolResponse tools.ToolResponse
+	// 			if err := json.Unmarshal(result.Result, &toolResponse); err != nil {
+	// 				resultStr = "Error parsing tool response"
+	// 			} else {
+	// 				resultStr = truncateHeight(toolResponse.Content, 3)
+	// 			}
+	// 		}
+	//
+	// 		// Format the tool call
+	// 		toolCall := fmt.Sprintf("%d. %s: %s\n   %s", i+1, toolName, inputStr, resultStr)
+	// 		toolCalls = append(toolCalls, toolCall)
+	// 	}
+	//
+	// 	return baseStyle.Width(width).Foreground(t.TextMuted()).Render(strings.Join(toolCalls, "\n\n"))
+	// default:
+	// 	resultContent = fmt.Sprintf("```text\n%s\n```", resultContent)
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		toMarkdown(resultContent, width),
+	// 		t.Background(),
+	// 	)
+	// }
+}
+
+// func renderToolMessage(
+// 	toolCall message.ToolCall,
+// 	allMessages []message.Message,
+// 	messagesService message.Service,
+// 	focusedUIMessageId string,
+// 	nested bool,
+// 	width int,
+// 	position int,
+// ) string {
+// 	if nested {
+// 		width = width - 3
+// 	}
+//
+// 	t := theme.CurrentTheme()
+// 	baseStyle := styles.BaseStyle()
+//
+// 	style := baseStyle.
+// 		Width(width - 1).
+// 		BorderLeft(true).
+// 		BorderStyle(lipgloss.ThickBorder()).
+// 		PaddingLeft(1).
+// 		BorderForeground(t.TextMuted())
+//
+// 	response := findToolResponse(toolCall.ID, allMessages)
+// 	toolNameText := baseStyle.Foreground(t.TextMuted()).
+// 		Render(fmt.Sprintf("%s: ", renderToolName(toolCall.Name)))
+//
+// 	if !toolCall.Finished {
+// 		// Get a brief description of what the tool is doing
+// 		toolAction := renderToolAction(toolCall.Name)
+//
+// 		progressText := baseStyle.
+// 			Width(width - 2 - lipgloss.Width(toolNameText)).
+// 			Foreground(t.TextMuted()).
+// 			Render(fmt.Sprintf("%s", toolAction))
+//
+// 		content := style.Render(lipgloss.JoinHorizontal(lipgloss.Left, toolNameText, progressText))
+// 		return content
+// 	}
+//
+// 	params := renderToolParams(width-1-lipgloss.Width(toolNameText), toolCall)
+// 	responseContent := ""
+// 	if response != nil {
+// 		responseContent = renderToolResponse(toolCall, *response, width-2)
+// 		responseContent = strings.TrimSuffix(responseContent, "\n")
+// 	} else {
+// 		responseContent = baseStyle.
+// 			Italic(true).
+// 			Width(width - 2).
+// 			Foreground(t.TextMuted()).
+// 			Render("Waiting for response...")
+// 	}
+//
+// 	parts := []string{}
+// 	if !nested {
+// 		formattedParams := baseStyle.
+// 			Width(width - 2 - lipgloss.Width(toolNameText)).
+// 			Foreground(t.TextMuted()).
+// 			Render(params)
+//
+// 		parts = append(parts, lipgloss.JoinHorizontal(lipgloss.Left, toolNameText, formattedParams))
+// 	} else {
+// 		prefix := baseStyle.
+// 			Foreground(t.TextMuted()).
+// 			Render(" └ ")
+// 		formattedParams := baseStyle.
+// 			Width(width - 2 - lipgloss.Width(toolNameText)).
+// 			Foreground(t.TextMuted()).
+// 			Render(params)
+// 		parts = append(parts, lipgloss.JoinHorizontal(lipgloss.Left, prefix, toolNameText, formattedParams))
+// 	}
+//
+// 	// if toolCall.Name == agent.AgentToolName {
+// 	// 	taskMessages, _ := messagesService.List(context.Background(), toolCall.ID)
+// 	// 	toolCalls := []message.ToolCall{}
+// 	// 	for _, v := range taskMessages {
+// 	// 		toolCalls = append(toolCalls, v.ToolCalls()...)
+// 	// 	}
+// 	// 	for _, call := range toolCalls {
+// 	// 		rendered := renderToolMessage(call, []message.Message{}, messagesService, focusedUIMessageId, true, width, 0)
+// 	// 		parts = append(parts, rendered.content)
+// 	// 	}
+// 	// }
+// 	if responseContent != "" && !nested {
+// 		parts = append(parts, responseContent)
+// 	}
+//
+// 	content := style.Render(
+// 		lipgloss.JoinVertical(
+// 			lipgloss.Left,
+// 			parts...,
+// 		),
+// 	)
+// 	if nested {
+// 		content = lipgloss.JoinVertical(
+// 			lipgloss.Left,
+// 			parts...,
+// 		)
+// 	}
+// 	return content
+// }

packages/tui/internal/tui/components/chat/messages.go

@@ -0,0 +1,344 @@
+package chat
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/spinner"
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/components/dialog"
+	"github.com/sst/opencode/internal/tui/state"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/pkg/client"
+)
+
+type messagesCmp struct {
+	app              *app.App
+	width, height    int
+	viewport         viewport.Model
+	spinner          spinner.Model
+	rendering        bool
+	attachments      viewport.Model
+	showToolMessages bool
+}
+type renderFinishedMsg struct{}
+type ToggleToolMessagesMsg struct{}
+
+type MessageKeys struct {
+	PageDown     key.Binding
+	PageUp       key.Binding
+	HalfPageUp   key.Binding
+	HalfPageDown key.Binding
+}
+
+var messageKeys = MessageKeys{
+	PageDown: key.NewBinding(
+		key.WithKeys("pgdown"),
+		key.WithHelp("f/pgdn", "page down"),
+	),
+	PageUp: key.NewBinding(
+		key.WithKeys("pgup"),
+		key.WithHelp("b/pgup", "page up"),
+	),
+	HalfPageUp: key.NewBinding(
+		key.WithKeys("ctrl+u"),
+		key.WithHelp("ctrl+u", "½ page up"),
+	),
+	HalfPageDown: key.NewBinding(
+		key.WithKeys("ctrl+d", "ctrl+d"),
+		key.WithHelp("ctrl+d", "½ page down"),
+	),
+}
+
+func (m *messagesCmp) Init() tea.Cmd {
+	return tea.Batch(m.viewport.Init(), m.spinner.Tick)
+}
+
+func (m *messagesCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmds []tea.Cmd
+	switch msg := msg.(type) {
+	case dialog.ThemeChangedMsg:
+		m.renderView()
+		return m, nil
+	case ToggleToolMessagesMsg:
+		m.showToolMessages = !m.showToolMessages
+		m.renderView()
+		return m, nil
+	case state.SessionSelectedMsg:
+		cmd := m.Reload()
+		return m, cmd
+	case state.SessionClearedMsg:
+		cmd := m.Reload()
+		return m, cmd
+	case tea.KeyMsg:
+		if key.Matches(msg, messageKeys.PageUp) || key.Matches(msg, messageKeys.PageDown) ||
+			key.Matches(msg, messageKeys.HalfPageUp) || key.Matches(msg, messageKeys.HalfPageDown) {
+			u, cmd := m.viewport.Update(msg)
+			m.viewport = u
+			cmds = append(cmds, cmd)
+		}
+	case renderFinishedMsg:
+		m.rendering = false
+		m.viewport.GotoBottom()
+	case state.StateUpdatedMsg:
+		m.renderView()
+		m.viewport.GotoBottom()
+	}
+
+	spinner, cmd := m.spinner.Update(msg)
+	m.spinner = spinner
+	cmds = append(cmds, cmd)
+	return m, tea.Batch(cmds...)
+}
+
+func (m *messagesCmp) renderView() {
+	if m.width == 0 {
+		return
+	}
+
+	messages := make([]string, 0)
+	for _, msg := range m.app.Messages {
+		switch msg.Role {
+		case client.User:
+			content := renderUserMessage(msg, m.width)
+			messages = append(messages, content+"\n")
+		case client.Assistant:
+			content := renderAssistantMessage(msg, m.width, m.showToolMessages)
+			messages = append(messages, content+"\n")
+		}
+	}
+
+	m.viewport.SetContent(
+		styles.BaseStyle().
+			Render(
+				lipgloss.JoinVertical(
+					lipgloss.Top,
+					messages...,
+				),
+			),
+	)
+}
+
+func (m *messagesCmp) View() string {
+	baseStyle := styles.BaseStyle()
+
+	if m.rendering {
+		return baseStyle.
+			Width(m.width).
+			Render(
+				lipgloss.JoinVertical(
+					lipgloss.Top,
+					"Loading...",
+					m.working(),
+					m.help(),
+				),
+			)
+	}
+
+	if len(m.app.Messages) == 0 {
+		content := baseStyle.
+			Width(m.width).
+			Height(m.height - 1).
+			Render(
+				m.initialScreen(),
+			)
+
+		return baseStyle.
+			Width(m.width).
+			Render(
+				lipgloss.JoinVertical(
+					lipgloss.Top,
+					content,
+					"",
+					m.help(),
+				),
+			)
+	}
+
+	return baseStyle.
+		Width(m.width).
+		Render(
+			lipgloss.JoinVertical(
+				lipgloss.Top,
+				m.viewport.View(),
+				m.working(),
+				m.help(),
+			),
+		)
+}
+
+// func hasToolsWithoutResponse(messages []message.Message) bool {
+// 	toolCalls := make([]message.ToolCall, 0)
+// 	toolResults := make([]message.ToolResult, 0)
+// 	for _, m := range messages {
+// 		toolCalls = append(toolCalls, m.ToolCalls()...)
+// 		toolResults = append(toolResults, m.ToolResults()...)
+// 	}
+//
+// 	for _, v := range toolCalls {
+// 		found := false
+// 		for _, r := range toolResults {
+// 			if v.ID == r.ToolCallID {
+// 				found = true
+// 				break
+// 			}
+// 		}
+// 		if !found && v.Finished {
+// 			return true
+// 		}
+// 	}
+// 	return false
+// }
+
+// func hasUnfinishedToolCalls(messages []message.Message) bool {
+// 	toolCalls := make([]message.ToolCall, 0)
+// 	for _, m := range messages {
+// 		toolCalls = append(toolCalls, m.ToolCalls()...)
+// 	}
+// 	for _, v := range toolCalls {
+// 		if !v.Finished {
+// 			return true
+// 		}
+// 	}
+// 	return false
+// }
+
+func (m *messagesCmp) working() string {
+	text := ""
+	if len(m.app.Messages) > 0 {
+		t := theme.CurrentTheme()
+		baseStyle := styles.BaseStyle()
+
+		task := ""
+
+		lastMessage := m.app.Messages[len(m.app.Messages)-1]
+		if lastMessage.Metadata.Time.Completed == nil {
+			task = "Working..."
+		}
+		// lastMessage := m.app.Messages[len(m.app.Messages)-1]
+		// if hasToolsWithoutResponse(m.app.Messages) {
+		// 	task = "Waiting for tool response..."
+		// } else if hasUnfinishedToolCalls(m.app.Messages) {
+		// 	task = "Building tool call..."
+		// } else if !lastMessage.IsFinished() {
+		// 	task = "Generating..."
+		// }
+		if task != "" {
+			text += baseStyle.
+				Width(m.width).
+				Foreground(t.Primary()).
+				Bold(true).
+				Render(fmt.Sprintf("%s %s ", m.spinner.View(), task))
+		}
+	}
+	return text
+}
+
+func (m *messagesCmp) help() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	text := ""
+
+	if m.app.PrimaryAgentOLD.IsBusy() {
+		text += lipgloss.JoinHorizontal(
+			lipgloss.Left,
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render("press "),
+			baseStyle.Foreground(t.Text()).Bold(true).Render("esc"),
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render(" to interrupt"),
+		)
+	} else {
+		text += lipgloss.JoinHorizontal(
+			lipgloss.Left,
+			baseStyle.Foreground(t.Text()).Bold(true).Render("enter"),
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render(" to send,"),
+			baseStyle.Foreground(t.Text()).Bold(true).Render(" \\"),
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render("+"),
+			baseStyle.Foreground(t.Text()).Bold(true).Render("enter"),
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render(" for newline,"),
+			baseStyle.Foreground(t.Text()).Bold(true).Render(" ↑↓"),
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render(" for history,"),
+			baseStyle.Foreground(t.Text()).Bold(true).Render(" ctrl+h"),
+			baseStyle.Foreground(t.TextMuted()).Bold(true).Render(" to toggle tool messages"),
+		)
+	}
+	return baseStyle.
+		Width(m.width).
+		Render(text)
+}
+
+func (m *messagesCmp) initialScreen() string {
+	baseStyle := styles.BaseStyle()
+
+	return baseStyle.Width(m.width).Render(
+		lipgloss.JoinVertical(
+			lipgloss.Top,
+			header(m.width),
+			"",
+			lspsConfigured(m.width),
+		),
+	)
+}
+
+func (m *messagesCmp) SetSize(width, height int) tea.Cmd {
+	if m.width == width && m.height == height {
+		return nil
+	}
+	m.width = width
+	m.height = height
+	m.viewport.Width = width
+	m.viewport.Height = height - 2
+	m.attachments.Width = width + 40
+	m.attachments.Height = 3
+	m.renderView()
+	return nil
+}
+
+func (m *messagesCmp) GetSize() (int, int) {
+	return m.width, m.height
+}
+
+func (m *messagesCmp) Reload() tea.Cmd {
+	m.rendering = true
+	return func() tea.Msg {
+		m.renderView()
+		return renderFinishedMsg{}
+	}
+}
+
+func (m *messagesCmp) BindingKeys() []key.Binding {
+	return []key.Binding{
+		m.viewport.KeyMap.PageDown,
+		m.viewport.KeyMap.PageUp,
+		m.viewport.KeyMap.HalfPageUp,
+		m.viewport.KeyMap.HalfPageDown,
+	}
+}
+
+func NewMessagesCmp(app *app.App) tea.Model {
+	customSpinner := spinner.Spinner{
+		Frames: []string{" ", "┃", "┃"},
+		FPS:    time.Second / 3,
+	}
+	s := spinner.New(spinner.WithSpinner(customSpinner))
+
+	vp := viewport.New(0, 0)
+	attachments := viewport.New(0, 0)
+	vp.KeyMap.PageUp = messageKeys.PageUp
+	vp.KeyMap.PageDown = messageKeys.PageDown
+	vp.KeyMap.HalfPageUp = messageKeys.HalfPageUp
+	vp.KeyMap.HalfPageDown = messageKeys.HalfPageDown
+
+	return &messagesCmp{
+		app:              app,
+		viewport:         vp,
+		spinner:          s,
+		attachments:      attachments,
+		showToolMessages: true,
+	}
+}

packages/tui/internal/tui/components/chat/sidebar.go

@@ -0,0 +1,220 @@
+package chat
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/state"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+)
+
+type sidebarCmp struct {
+	app           *app.App
+	width, height int
+	modFiles      map[string]struct {
+		additions int
+		removals  int
+	}
+}
+
+func (m *sidebarCmp) Init() tea.Cmd {
+	// TODO: History service not implemented in API yet
+	// Initialize the modified files map
+	m.modFiles = make(map[string]struct {
+		additions int
+		removals  int
+	})
+	return nil
+}
+
+func (m *sidebarCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg.(type) {
+	case state.SessionSelectedMsg:
+		// TODO: History service not implemented in API yet
+		// ctx := context.Background()
+		// m.loadModifiedFiles(ctx)
+		// case pubsub.Event[history.File]:
+		// TODO: History service not implemented in API yet
+		// if msg.Payload.SessionID == m.app.CurrentSession.ID {
+		// 	// Process the individual file change instead of reloading all files
+		// 	ctx := context.Background()
+		// 	m.processFileChanges(ctx, msg.Payload)
+		// }
+	}
+	return m, nil
+}
+
+func (m *sidebarCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+	shareUrl := ""
+	if m.app.Session.Share != nil {
+		shareUrl = baseStyle.Foreground(t.TextMuted()).Render(m.app.Session.Share.Url)
+	}
+
+	// qrcode := ""
+	// if m.app.Session.ShareID != nil {
+	// 	url := "https://dev.opencode.ai/share?id="
+	// 	qrcode, _, _ = qr.Generate(url + m.app.Session.Id)
+	// }
+
+	return baseStyle.
+		Width(m.width).
+		PaddingLeft(4).
+		PaddingRight(1).
+		Render(
+			lipgloss.JoinVertical(
+				lipgloss.Top,
+				header(m.width),
+				" ",
+				m.sessionSection(),
+				shareUrl,
+			),
+		)
+}
+
+func (m *sidebarCmp) sessionSection() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	sessionKey := baseStyle.
+		Foreground(t.Primary()).
+		Bold(true).
+		Render("Session")
+
+	sessionValue := baseStyle.
+		Foreground(t.Text()).
+		Render(fmt.Sprintf(": %s", m.app.Session.Title))
+
+	return sessionKey + sessionValue
+}
+
+func (m *sidebarCmp) modifiedFile(filePath string, additions, removals int) string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	stats := ""
+	if additions > 0 && removals > 0 {
+		additionsStr := baseStyle.
+			Foreground(t.Success()).
+			PaddingLeft(1).
+			Render(fmt.Sprintf("+%d", additions))
+
+		removalsStr := baseStyle.
+			Foreground(t.Error()).
+			PaddingLeft(1).
+			Render(fmt.Sprintf("-%d", removals))
+
+		content := lipgloss.JoinHorizontal(lipgloss.Left, additionsStr, removalsStr)
+		stats = baseStyle.Width(lipgloss.Width(content)).Render(content)
+	} else if additions > 0 {
+		additionsStr := fmt.Sprintf(" %s", baseStyle.
+			PaddingLeft(1).
+			Foreground(t.Success()).
+			Render(fmt.Sprintf("+%d", additions)))
+		stats = baseStyle.Width(lipgloss.Width(additionsStr)).Render(additionsStr)
+	} else if removals > 0 {
+		removalsStr := fmt.Sprintf(" %s", baseStyle.
+			PaddingLeft(1).
+			Foreground(t.Error()).
+			Render(fmt.Sprintf("-%d", removals)))
+		stats = baseStyle.Width(lipgloss.Width(removalsStr)).Render(removalsStr)
+	}
+
+	filePathStr := baseStyle.Render(filePath)
+
+	return baseStyle.
+		Width(m.width).
+		Render(
+			lipgloss.JoinHorizontal(
+				lipgloss.Left,
+				filePathStr,
+				stats,
+			),
+		)
+}
+
+func (m *sidebarCmp) modifiedFiles() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	modifiedFiles := baseStyle.
+		Width(m.width).
+		Foreground(t.Primary()).
+		Bold(true).
+		Render("Modified Files:")
+
+	// If no modified files, show a placeholder message
+	if m.modFiles == nil || len(m.modFiles) == 0 {
+		message := "No modified files"
+		remainingWidth := m.width - lipgloss.Width(message)
+		if remainingWidth > 0 {
+			message += strings.Repeat(" ", remainingWidth)
+		}
+		return baseStyle.
+			Width(m.width).
+			Render(
+				lipgloss.JoinVertical(
+					lipgloss.Top,
+					modifiedFiles,
+					baseStyle.Foreground(t.TextMuted()).Render(message),
+				),
+			)
+	}
+
+	// Sort file paths alphabetically for consistent ordering
+	var paths []string
+	for path := range m.modFiles {
+		paths = append(paths, path)
+	}
+	sort.Strings(paths)
+
+	// Create views for each file in sorted order
+	var fileViews []string
+	for _, path := range paths {
+		stats := m.modFiles[path]
+		fileViews = append(fileViews, m.modifiedFile(path, stats.additions, stats.removals))
+	}
+
+	return baseStyle.
+		Width(m.width).
+		Render(
+			lipgloss.JoinVertical(
+				lipgloss.Top,
+				modifiedFiles,
+				lipgloss.JoinVertical(
+					lipgloss.Left,
+					fileViews...,
+				),
+			),
+		)
+}
+
+func (m *sidebarCmp) SetSize(width, height int) tea.Cmd {
+	m.width = width
+	m.height = height
+	return nil
+}
+
+func (m *sidebarCmp) GetSize() (int, int) {
+	return m.width, m.height
+}
+
+func NewSidebarCmp(app *app.App) tea.Model {
+	return &sidebarCmp{
+		app: app,
+	}
+}
+
+// Helper function to get the display path for a file
+func getDisplayPath(path string) string {
+	workingDir := config.WorkingDirectory()
+	displayPath := strings.TrimPrefix(path, workingDir)
+	return strings.TrimPrefix(displayPath, "/")
+}

packages/tui/internal/tui/components/core/status.go

@@ -0,0 +1,366 @@
+package core
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/pubsub"
+	"github.com/sst/opencode/internal/status"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+)
+
+type StatusCmp interface {
+	tea.Model
+	SetHelpWidgetMsg(string)
+}
+
+type statusCmp struct {
+	app         *app.App
+	queue       []status.StatusMessage
+	width       int
+	messageTTL  time.Duration
+	activeUntil time.Time
+}
+
+// clearMessageCmd is a command that clears status messages after a timeout
+func (m statusCmp) clearMessageCmd() tea.Cmd {
+	return tea.Tick(time.Second, func(t time.Time) tea.Msg {
+		return statusCleanupMsg{time: t}
+	})
+}
+
+// statusCleanupMsg is a message that triggers cleanup of expired status messages
+type statusCleanupMsg struct {
+	time time.Time
+}
+
+func (m statusCmp) Init() tea.Cmd {
+	return m.clearMessageCmd()
+}
+
+func (m statusCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		return m, nil
+	case pubsub.Event[status.StatusMessage]:
+		if msg.Type == status.EventStatusPublished {
+			// If this is a critical message, move it to the front of the queue
+			if msg.Payload.Critical {
+				// Insert at the front of the queue
+				m.queue = append([]status.StatusMessage{msg.Payload}, m.queue...)
+
+				// Reset active time to show critical message immediately
+				m.activeUntil = time.Time{}
+			} else {
+				// Otherwise, just add it to the queue
+				m.queue = append(m.queue, msg.Payload)
+
+				// If this is the first message and nothing is active, activate it immediately
+				if len(m.queue) == 1 && m.activeUntil.IsZero() {
+					now := time.Now()
+					duration := m.messageTTL
+					if msg.Payload.Duration > 0 {
+						duration = msg.Payload.Duration
+					}
+					m.activeUntil = now.Add(duration)
+				}
+			}
+		}
+	case statusCleanupMsg:
+		now := msg.time
+
+		// If the active message has expired, remove it and activate the next one
+		if !m.activeUntil.IsZero() && m.activeUntil.Before(now) {
+			// Current message expired, remove it if we have one
+			if len(m.queue) > 0 {
+				m.queue = m.queue[1:]
+			}
+			m.activeUntil = time.Time{}
+		}
+
+		// If we have messages in queue but none are active, activate the first one
+		if len(m.queue) > 0 && m.activeUntil.IsZero() {
+			// Use custom duration if specified, otherwise use default
+			duration := m.messageTTL
+			if m.queue[0].Duration > 0 {
+				duration = m.queue[0].Duration
+			}
+			m.activeUntil = now.Add(duration)
+		}
+
+		return m, m.clearMessageCmd()
+	}
+	return m, nil
+}
+
+var helpWidget = ""
+
+// getHelpWidget returns the help widget with current theme colors
+func getHelpWidget(helpText string) string {
+	t := theme.CurrentTheme()
+	if helpText == "" {
+		helpText = "ctrl+? help"
+	}
+
+	return styles.Padded().
+		Background(t.TextMuted()).
+		Foreground(t.BackgroundDarker()).
+		Bold(true).
+		Render(helpText)
+}
+
+func formatTokensAndCost(tokens float32, contextWindow float32, cost float32) string {
+	// Format tokens in human-readable format (e.g., 110K, 1.2M)
+	var formattedTokens string
+	switch {
+	case tokens >= 1_000_000:
+		formattedTokens = fmt.Sprintf("%.1fM", float64(tokens)/1_000_000)
+	case tokens >= 1_000:
+		formattedTokens = fmt.Sprintf("%.1fK", float64(tokens)/1_000)
+	default:
+		formattedTokens = fmt.Sprintf("%d", int(tokens))
+	}
+
+	// Remove .0 suffix if present
+	if strings.HasSuffix(formattedTokens, ".0K") {
+		formattedTokens = strings.Replace(formattedTokens, ".0K", "K", 1)
+	}
+	if strings.HasSuffix(formattedTokens, ".0M") {
+		formattedTokens = strings.Replace(formattedTokens, ".0M", "M", 1)
+	}
+
+	// Format cost with $ symbol and 2 decimal places
+	formattedCost := fmt.Sprintf("$%.2f", cost)
+
+	percentage := (float64(tokens) / float64(contextWindow)) * 100
+
+	return fmt.Sprintf("Tokens: %s (%d%%), Cost: %s", formattedTokens, int(percentage), formattedCost)
+}
+
+func (m statusCmp) View() string {
+	t := theme.CurrentTheme()
+	// modelID := config.Get().Agents[config.AgentPrimary].Model
+	// model := models.SupportedModels[modelID]
+
+	// Initialize the help widget
+	status := getHelpWidget("")
+
+	if m.app.Session.Id != "" {
+		tokens := float32(0)
+		cost := float32(0)
+		contextWindow := float32(200_000) // TODO: Get context window from model
+
+		for _, message := range m.app.Messages {
+			if message.Metadata.Assistant != nil {
+				cost += message.Metadata.Assistant.Cost
+				usage := message.Metadata.Assistant.Tokens
+				tokens += (usage.Input + usage.Output + usage.Reasoning)
+			}
+		}
+
+		tokensInfo := styles.Padded().
+			Background(t.Text()).
+			Foreground(t.BackgroundSecondary()).
+			Render(formatTokensAndCost(tokens, contextWindow, cost))
+		status += tokensInfo
+	}
+
+	diagnostics := styles.Padded().Background(t.BackgroundDarker()).Render(m.projectDiagnostics())
+
+	modelName := m.model()
+
+	statusWidth := max(
+		0,
+		m.width-
+			lipgloss.Width(status)-
+			lipgloss.Width(modelName)-
+			lipgloss.Width(diagnostics),
+	)
+
+	const minInlineWidth = 30
+
+	// Display the first status message if available
+	var statusMessage string
+	if len(m.queue) > 0 {
+		sm := m.queue[0]
+		infoStyle := styles.Padded().
+			Foreground(t.Background())
+
+		switch sm.Level {
+		case "info":
+			infoStyle = infoStyle.Background(t.Info())
+		case "warn":
+			infoStyle = infoStyle.Background(t.Warning())
+		case "error":
+			infoStyle = infoStyle.Background(t.Error())
+		case "debug":
+			infoStyle = infoStyle.Background(t.TextMuted())
+		}
+
+		// Truncate message if it's longer than available width
+		msg := sm.Message
+		availWidth := statusWidth - 10
+
+		// If we have enough space, show inline
+		if availWidth >= minInlineWidth {
+			if len(msg) > availWidth && availWidth > 0 {
+				msg = msg[:availWidth] + "..."
+			}
+			status += infoStyle.Width(statusWidth).Render(msg)
+		} else {
+			// Otherwise, prepare a full-width message to show above
+			if len(msg) > m.width-10 && m.width > 10 {
+				msg = msg[:m.width-10] + "..."
+			}
+			statusMessage = infoStyle.Width(m.width).Render(msg)
+
+			// Add empty space in the status bar
+			status += styles.Padded().
+				Foreground(t.Text()).
+				Background(t.BackgroundSecondary()).
+				Width(statusWidth).
+				Render("")
+		}
+	} else {
+		status += styles.Padded().
+			Foreground(t.Text()).
+			Background(t.BackgroundSecondary()).
+			Width(statusWidth).
+			Render("")
+	}
+
+	status += diagnostics
+	status += modelName
+
+	// If we have a separate status message, prepend it
+	if statusMessage != "" {
+		return statusMessage + "\n" + status
+	} else {
+		blank := styles.BaseStyle().Background(t.Background()).Width(m.width).Render("")
+		return blank + "\n" + status
+	}
+}
+
+func (m *statusCmp) projectDiagnostics() string {
+	t := theme.CurrentTheme()
+
+	// Check if any LSP server is still initializing
+	initializing := false
+	// for _, client := range m.app.LSPClients {
+	// 	if client.GetServerState() == lsp.StateStarting {
+	// 		initializing = true
+	// 		break
+	// 	}
+	// }
+
+	// If any server is initializing, show that status
+	if initializing {
+		return lipgloss.NewStyle().
+			Foreground(t.Warning()).
+			Render(fmt.Sprintf("%s Initializing LSP...", styles.SpinnerIcon))
+	}
+
+	// errorDiagnostics := []protocol.Diagnostic{}
+	// warnDiagnostics := []protocol.Diagnostic{}
+	// hintDiagnostics := []protocol.Diagnostic{}
+	// infoDiagnostics := []protocol.Diagnostic{}
+	// for _, client := range m.app.LSPClients {
+	// 	for _, d := range client.GetDiagnostics() {
+	// 		for _, diag := range d {
+	// 			switch diag.Severity {
+	// 			case protocol.SeverityError:
+	// 				errorDiagnostics = append(errorDiagnostics, diag)
+	// 			case protocol.SeverityWarning:
+	// 				warnDiagnostics = append(warnDiagnostics, diag)
+	// 			case protocol.SeverityHint:
+	// 				hintDiagnostics = append(hintDiagnostics, diag)
+	// 			case protocol.SeverityInformation:
+	// 				infoDiagnostics = append(infoDiagnostics, diag)
+	// 			}
+	// 		}
+	// 	}
+	// }
+	return styles.ForceReplaceBackgroundWithLipgloss(
+		styles.Padded().Render("No diagnostics"),
+		t.BackgroundDarker(),
+	)
+
+	// if len(errorDiagnostics) == 0 &&
+	// 	len(warnDiagnostics) == 0 &&
+	// 	len(infoDiagnostics) == 0 &&
+	// 	len(hintDiagnostics) == 0 {
+	// 	return styles.ForceReplaceBackgroundWithLipgloss(
+	// 		styles.Padded().Render("No diagnostics"),
+	// 		t.BackgroundDarker(),
+	// 	)
+	// }
+
+	// diagnostics := []string{}
+	//
+	// errStr := lipgloss.NewStyle().
+	// 	Background(t.BackgroundDarker()).
+	// 	Foreground(t.Error()).
+	// 	Render(fmt.Sprintf("%s %d", styles.ErrorIcon, len(errorDiagnostics)))
+	// diagnostics = append(diagnostics, errStr)
+	//
+	// warnStr := lipgloss.NewStyle().
+	// 	Background(t.BackgroundDarker()).
+	// 	Foreground(t.Warning()).
+	// 	Render(fmt.Sprintf("%s %d", styles.WarningIcon, len(warnDiagnostics)))
+	// diagnostics = append(diagnostics, warnStr)
+	//
+	// infoStr := lipgloss.NewStyle().
+	// 	Background(t.BackgroundDarker()).
+	// 	Foreground(t.Info()).
+	// 	Render(fmt.Sprintf("%s %d", styles.InfoIcon, len(infoDiagnostics)))
+	// diagnostics = append(diagnostics, infoStr)
+	//
+	// hintStr := lipgloss.NewStyle().
+	// 	Background(t.BackgroundDarker()).
+	// 	Foreground(t.Text()).
+	// 	Render(fmt.Sprintf("%s %d", styles.HintIcon, len(hintDiagnostics)))
+	// diagnostics = append(diagnostics, hintStr)
+	//
+	// return styles.ForceReplaceBackgroundWithLipgloss(
+	// 	styles.Padded().Render(strings.Join(diagnostics, " ")),
+	// 	t.BackgroundDarker(),
+	// )
+}
+
+func (m statusCmp) model() string {
+	t := theme.CurrentTheme()
+	model := "None"
+	if m.app.Model != nil {
+		model = *m.app.Model.Name
+	}
+
+	return styles.Padded().
+		Background(t.Secondary()).
+		Foreground(t.Background()).
+		Render(model)
+}
+
+func (m statusCmp) SetHelpWidgetMsg(s string) {
+	// Update the help widget text using the getHelpWidget function
+	helpWidget = getHelpWidget(s)
+}
+
+func NewStatusCmp(app *app.App) StatusCmp {
+	// Initialize the help widget with default text
+	helpWidget = getHelpWidget("")
+
+	statusComponent := &statusCmp{
+		app:         app,
+		queue:       []status.StatusMessage{},
+		messageTTL:  4 * time.Second,
+		activeUntil: time.Time{},
+	}
+
+	return statusComponent
+}

packages/tui/internal/tui/components/dialog/arguments.go

@@ -0,0 +1,257 @@
+package dialog
+
+import (
+	"fmt"
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+type argumentsDialogKeyMap struct {
+	Enter  key.Binding
+	Escape key.Binding
+}
+
+// ShortHelp implements key.Map.
+func (k argumentsDialogKeyMap) ShortHelp() []key.Binding {
+	return []key.Binding{
+		key.NewBinding(
+			key.WithKeys("enter"),
+			key.WithHelp("enter", "confirm"),
+		),
+		key.NewBinding(
+			key.WithKeys("esc"),
+			key.WithHelp("esc", "cancel"),
+		),
+	}
+}
+
+// FullHelp implements key.Map.
+func (k argumentsDialogKeyMap) FullHelp() [][]key.Binding {
+	return [][]key.Binding{k.ShortHelp()}
+}
+
+// ShowMultiArgumentsDialogMsg is a message that is sent to show the multi-arguments dialog.
+type ShowMultiArgumentsDialogMsg struct {
+	CommandID string
+	Content   string
+	ArgNames  []string
+}
+
+// CloseMultiArgumentsDialogMsg is a message that is sent when the multi-arguments dialog is closed.
+type CloseMultiArgumentsDialogMsg struct {
+	Submit    bool
+	CommandID string
+	Content   string
+	Args      map[string]string
+}
+
+// MultiArgumentsDialogCmp is a component that asks the user for multiple command arguments.
+type MultiArgumentsDialogCmp struct {
+	width, height int
+	inputs        []textinput.Model
+	focusIndex    int
+	keys          argumentsDialogKeyMap
+	commandID     string
+	content       string
+	argNames      []string
+}
+
+// NewMultiArgumentsDialogCmp creates a new MultiArgumentsDialogCmp.
+func NewMultiArgumentsDialogCmp(commandID, content string, argNames []string) MultiArgumentsDialogCmp {
+	t := theme.CurrentTheme()
+	inputs := make([]textinput.Model, len(argNames))
+
+	for i, name := range argNames {
+		ti := textinput.New()
+		ti.Placeholder = fmt.Sprintf("Enter value for %s...", name)
+		ti.Width = 40
+		ti.Prompt = ""
+		ti.PlaceholderStyle = ti.PlaceholderStyle.Background(t.Background())
+		ti.PromptStyle = ti.PromptStyle.Background(t.Background())
+		ti.TextStyle = ti.TextStyle.Background(t.Background())
+
+		// Only focus the first input initially
+		if i == 0 {
+			ti.Focus()
+			ti.PromptStyle = ti.PromptStyle.Foreground(t.Primary())
+			ti.TextStyle = ti.TextStyle.Foreground(t.Primary())
+		} else {
+			ti.Blur()
+		}
+
+		inputs[i] = ti
+	}
+
+	return MultiArgumentsDialogCmp{
+		inputs:     inputs,
+		keys:       argumentsDialogKeyMap{},
+		commandID:  commandID,
+		content:    content,
+		argNames:   argNames,
+		focusIndex: 0,
+	}
+}
+
+// Init implements tea.Model.
+func (m MultiArgumentsDialogCmp) Init() tea.Cmd {
+	// Make sure only the first input is focused
+	for i := range m.inputs {
+		if i == 0 {
+			m.inputs[i].Focus()
+		} else {
+			m.inputs[i].Blur()
+		}
+	}
+
+	return textinput.Blink
+}
+
+// Update implements tea.Model.
+func (m MultiArgumentsDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmds []tea.Cmd
+	t := theme.CurrentTheme()
+
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch {
+		case key.Matches(msg, key.NewBinding(key.WithKeys("esc"))):
+			return m, util.CmdHandler(CloseMultiArgumentsDialogMsg{
+				Submit:    false,
+				CommandID: m.commandID,
+				Content:   m.content,
+				Args:      nil,
+			})
+		case key.Matches(msg, key.NewBinding(key.WithKeys("enter"))):
+			// If we're on the last input, submit the form
+			if m.focusIndex == len(m.inputs)-1 {
+				args := make(map[string]string)
+				for i, name := range m.argNames {
+					args[name] = m.inputs[i].Value()
+				}
+				return m, util.CmdHandler(CloseMultiArgumentsDialogMsg{
+					Submit:    true,
+					CommandID: m.commandID,
+					Content:   m.content,
+					Args:      args,
+				})
+			}
+			// Otherwise, move to the next input
+			m.inputs[m.focusIndex].Blur()
+			m.focusIndex++
+			m.inputs[m.focusIndex].Focus()
+			m.inputs[m.focusIndex].PromptStyle = m.inputs[m.focusIndex].PromptStyle.Foreground(t.Primary())
+			m.inputs[m.focusIndex].TextStyle = m.inputs[m.focusIndex].TextStyle.Foreground(t.Primary())
+		case key.Matches(msg, key.NewBinding(key.WithKeys("tab"))):
+			// Move to the next input
+			m.inputs[m.focusIndex].Blur()
+			m.focusIndex = (m.focusIndex + 1) % len(m.inputs)
+			m.inputs[m.focusIndex].Focus()
+			m.inputs[m.focusIndex].PromptStyle = m.inputs[m.focusIndex].PromptStyle.Foreground(t.Primary())
+			m.inputs[m.focusIndex].TextStyle = m.inputs[m.focusIndex].TextStyle.Foreground(t.Primary())
+		case key.Matches(msg, key.NewBinding(key.WithKeys("shift+tab"))):
+			// Move to the previous input
+			m.inputs[m.focusIndex].Blur()
+			m.focusIndex = (m.focusIndex - 1 + len(m.inputs)) % len(m.inputs)
+			m.inputs[m.focusIndex].Focus()
+			m.inputs[m.focusIndex].PromptStyle = m.inputs[m.focusIndex].PromptStyle.Foreground(t.Primary())
+			m.inputs[m.focusIndex].TextStyle = m.inputs[m.focusIndex].TextStyle.Foreground(t.Primary())
+		}
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+	}
+
+	// Update the focused input
+	var cmd tea.Cmd
+	m.inputs[m.focusIndex], cmd = m.inputs[m.focusIndex].Update(msg)
+	cmds = append(cmds, cmd)
+
+	return m, tea.Batch(cmds...)
+}
+
+// View implements tea.Model.
+func (m MultiArgumentsDialogCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	// Calculate width needed for content
+	maxWidth := 60 // Width for explanation text
+
+	title := lipgloss.NewStyle().
+		Foreground(t.Primary()).
+		Bold(true).
+		Width(maxWidth).
+		Padding(0, 1).
+		Background(t.Background()).
+		Render("Command Arguments")
+
+	explanation := lipgloss.NewStyle().
+		Foreground(t.Text()).
+		Width(maxWidth).
+		Padding(0, 1).
+		Background(t.Background()).
+		Render("This command requires multiple arguments. Please enter values for each:")
+
+	// Create input fields for each argument
+	inputFields := make([]string, len(m.inputs))
+	for i, input := range m.inputs {
+		// Highlight the label of the focused input
+		labelStyle := lipgloss.NewStyle().
+			Width(maxWidth).
+			Padding(1, 1, 0, 1).
+			Background(t.Background())
+
+		if i == m.focusIndex {
+			labelStyle = labelStyle.Foreground(t.Primary()).Bold(true)
+		} else {
+			labelStyle = labelStyle.Foreground(t.TextMuted())
+		}
+
+		label := labelStyle.Render(m.argNames[i] + ":")
+
+		field := lipgloss.NewStyle().
+			Foreground(t.Text()).
+			Width(maxWidth).
+			Padding(0, 1).
+			Background(t.Background()).
+			Render(input.View())
+
+		inputFields[i] = lipgloss.JoinVertical(lipgloss.Left, label, field)
+	}
+
+	maxWidth = min(maxWidth, m.width-10)
+
+	// Join all elements vertically
+	elements := []string{title, explanation}
+	elements = append(elements, inputFields...)
+
+	content := lipgloss.JoinVertical(
+		lipgloss.Left,
+		elements...,
+	)
+
+	return baseStyle.Padding(1, 2).
+		Border(lipgloss.RoundedBorder()).
+		BorderBackground(t.Background()).
+		BorderForeground(t.TextMuted()).
+		Background(t.Background()).
+		Width(lipgloss.Width(content) + 4).
+		Render(content)
+}
+
+// SetSize sets the size of the component.
+func (m *MultiArgumentsDialogCmp) SetSize(width, height int) {
+	m.width = width
+	m.height = height
+}
+
+// Bindings implements layout.Bindings.
+func (m MultiArgumentsDialogCmp) Bindings() []key.Binding {
+	return m.keys.ShortHelp()
+}

packages/tui/internal/tui/components/dialog/commands.go

@@ -0,0 +1,180 @@
+package dialog
+
+import (
+	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	utilComponents "github.com/sst/opencode/internal/tui/components/util"
+	"github.com/sst/opencode/internal/tui/layout"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+// Command represents a command that can be executed
+type Command struct {
+	ID          string
+	Title       string
+	Description string
+	Handler     func(cmd Command) tea.Cmd
+}
+
+func (ci Command) Render(selected bool, width int) string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	descStyle := baseStyle.Width(width).Foreground(t.TextMuted())
+	itemStyle := baseStyle.Width(width).
+		Foreground(t.Text()).
+		Background(t.Background())
+
+	if selected {
+		itemStyle = itemStyle.
+			Background(t.Primary()).
+			Foreground(t.Background()).
+			Bold(true)
+		descStyle = descStyle.
+			Background(t.Primary()).
+			Foreground(t.Background())
+	}
+
+	title := itemStyle.Padding(0, 1).Render(ci.Title)
+	if ci.Description != "" {
+		description := descStyle.Padding(0, 1).Render(ci.Description)
+		return lipgloss.JoinVertical(lipgloss.Left, title, description)
+	}
+	return title
+}
+
+// CommandSelectedMsg is sent when a command is selected
+type CommandSelectedMsg struct {
+	Command Command
+}
+
+// CloseCommandDialogMsg is sent when the command dialog is closed
+type CloseCommandDialogMsg struct{}
+
+// CommandDialog interface for the command selection dialog
+type CommandDialog interface {
+	tea.Model
+	layout.Bindings
+	SetCommands(commands []Command)
+}
+
+type commandDialogCmp struct {
+	listView utilComponents.SimpleList[Command]
+	width    int
+	height   int
+}
+
+type commandKeyMap struct {
+	Enter  key.Binding
+	Escape key.Binding
+}
+
+var commandKeys = commandKeyMap{
+	Enter: key.NewBinding(
+		key.WithKeys("enter"),
+		key.WithHelp("enter", "select command"),
+	),
+	Escape: key.NewBinding(
+		key.WithKeys("esc"),
+		key.WithHelp("esc", "close"),
+	),
+}
+
+func (c *commandDialogCmp) Init() tea.Cmd {
+	return c.listView.Init()
+}
+
+func (c *commandDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmds []tea.Cmd
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch {
+		case key.Matches(msg, commandKeys.Enter):
+			selectedItem, idx := c.listView.GetSelectedItem()
+			if idx != -1 {
+				return c, util.CmdHandler(CommandSelectedMsg{
+					Command: selectedItem,
+				})
+			}
+		case key.Matches(msg, commandKeys.Escape):
+			return c, util.CmdHandler(CloseCommandDialogMsg{})
+		}
+	case tea.WindowSizeMsg:
+		c.width = msg.Width
+		c.height = msg.Height
+	}
+
+	u, cmd := c.listView.Update(msg)
+	c.listView = u.(utilComponents.SimpleList[Command])
+	cmds = append(cmds, cmd)
+
+	return c, tea.Batch(cmds...)
+}
+
+func (c *commandDialogCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	maxWidth := 40
+
+	commands := c.listView.GetItems()
+
+	for _, cmd := range commands {
+		if len(cmd.Title) > maxWidth-4 {
+			maxWidth = len(cmd.Title) + 4
+		}
+		if cmd.Description != "" {
+			if len(cmd.Description) > maxWidth-4 {
+				maxWidth = len(cmd.Description) + 4
+			}
+		}
+	}
+
+	c.listView.SetMaxWidth(maxWidth)
+
+	title := baseStyle.
+		Foreground(t.Primary()).
+		Bold(true).
+		Width(maxWidth).
+		Padding(0, 1).
+		Render("Commands")
+
+	content := lipgloss.JoinVertical(
+		lipgloss.Left,
+		title,
+		baseStyle.Width(maxWidth).Render(""),
+		baseStyle.Width(maxWidth).Render(c.listView.View()),
+		baseStyle.Width(maxWidth).Render(""),
+	)
+
+	return baseStyle.Padding(1, 2).
+		Border(lipgloss.RoundedBorder()).
+		BorderBackground(t.Background()).
+		BorderForeground(t.TextMuted()).
+		Width(lipgloss.Width(content) + 4).
+		Render(content)
+}
+
+func (c *commandDialogCmp) BindingKeys() []key.Binding {
+	return layout.KeyMapToSlice(commandKeys)
+}
+
+func (c *commandDialogCmp) SetCommands(commands []Command) {
+	c.listView.SetItems(commands)
+}
+
+// NewCommandDialogCmp creates a new command selection dialog
+func NewCommandDialogCmp() CommandDialog {
+	listView := utilComponents.NewSimpleList[Command](
+		[]Command{},
+		10,
+		"No commands available",
+		true,
+	)
+	return &commandDialogCmp{
+		listView: listView,
+	}
+}

packages/tui/internal/tui/components/dialog/complete.go

@@ -0,0 +1,263 @@
+package dialog
+
+import (
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/textarea"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/status"
+	utilComponents "github.com/sst/opencode/internal/tui/components/util"
+	"github.com/sst/opencode/internal/tui/layout"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+type CompletionItem struct {
+	title string
+	Title string
+	Value string
+}
+
+type CompletionItemI interface {
+	utilComponents.SimpleListItem
+	GetValue() string
+	DisplayValue() string
+}
+
+func (ci *CompletionItem) Render(selected bool, width int) string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	itemStyle := baseStyle.
+		Width(width).
+		Padding(0, 1)
+
+	if selected {
+		itemStyle = itemStyle.
+			Background(t.Background()).
+			Foreground(t.Primary()).
+			Bold(true)
+	}
+
+	title := itemStyle.Render(
+		ci.GetValue(),
+	)
+
+	return title
+}
+
+func (ci *CompletionItem) DisplayValue() string {
+	return ci.Title
+}
+
+func (ci *CompletionItem) GetValue() string {
+	return ci.Value
+}
+
+func NewCompletionItem(completionItem CompletionItem) CompletionItemI {
+	return &completionItem
+}
+
+type CompletionProvider interface {
+	GetId() string
+	GetEntry() CompletionItemI
+	GetChildEntries(query string) ([]CompletionItemI, error)
+}
+
+type CompletionSelectedMsg struct {
+	SearchString    string
+	CompletionValue string
+}
+
+type CompletionDialogCompleteItemMsg struct {
+	Value string
+}
+
+type CompletionDialogCloseMsg struct{}
+
+type CompletionDialog interface {
+	tea.Model
+	layout.Bindings
+	SetWidth(width int)
+}
+
+type completionDialogCmp struct {
+	query                string
+	completionProvider   CompletionProvider
+	width                int
+	height               int
+	pseudoSearchTextArea textarea.Model
+	listView             utilComponents.SimpleList[CompletionItemI]
+}
+
+type completionDialogKeyMap struct {
+	Complete key.Binding
+	Cancel   key.Binding
+}
+
+var completionDialogKeys = completionDialogKeyMap{
+	Complete: key.NewBinding(
+		key.WithKeys("tab", "enter"),
+	),
+	Cancel: key.NewBinding(
+		key.WithKeys(" ", "esc", "backspace"),
+	),
+}
+
+func (c *completionDialogCmp) Init() tea.Cmd {
+	return nil
+}
+
+func (c *completionDialogCmp) complete(item CompletionItemI) tea.Cmd {
+	value := c.pseudoSearchTextArea.Value()
+
+	if value == "" {
+		return nil
+	}
+
+	return tea.Batch(
+		util.CmdHandler(CompletionSelectedMsg{
+			SearchString:    value,
+			CompletionValue: item.GetValue(),
+		}),
+		c.close(),
+	)
+}
+
+func (c *completionDialogCmp) close() tea.Cmd {
+	c.listView.SetItems([]CompletionItemI{})
+	c.pseudoSearchTextArea.Reset()
+	c.pseudoSearchTextArea.Blur()
+
+	return util.CmdHandler(CompletionDialogCloseMsg{})
+}
+
+func (c *completionDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmds []tea.Cmd
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		if c.pseudoSearchTextArea.Focused() {
+
+			if !key.Matches(msg, completionDialogKeys.Complete) {
+
+				var cmd tea.Cmd
+				c.pseudoSearchTextArea, cmd = c.pseudoSearchTextArea.Update(msg)
+				cmds = append(cmds, cmd)
+
+				var query string
+				query = c.pseudoSearchTextArea.Value()
+				if query != "" {
+					query = query[1:]
+				}
+
+				if query != c.query {
+					items, err := c.completionProvider.GetChildEntries(query)
+					if err != nil {
+						status.Error(err.Error())
+					}
+
+					c.listView.SetItems(items)
+					c.query = query
+				}
+
+				u, cmd := c.listView.Update(msg)
+				c.listView = u.(utilComponents.SimpleList[CompletionItemI])
+
+				cmds = append(cmds, cmd)
+			}
+
+			switch {
+			case key.Matches(msg, completionDialogKeys.Complete):
+				item, i := c.listView.GetSelectedItem()
+				if i == -1 {
+					return c, nil
+				}
+
+				cmd := c.complete(item)
+
+				return c, cmd
+			case key.Matches(msg, completionDialogKeys.Cancel):
+				// Only close on backspace when there are no characters left
+				if msg.String() != "backspace" || len(c.pseudoSearchTextArea.Value()) <= 0 {
+					return c, c.close()
+				}
+			}
+
+			return c, tea.Batch(cmds...)
+		} else {
+			items, err := c.completionProvider.GetChildEntries("")
+			if err != nil {
+				status.Error(err.Error())
+			}
+
+			c.listView.SetItems(items)
+			c.pseudoSearchTextArea.SetValue(msg.String())
+			return c, c.pseudoSearchTextArea.Focus()
+		}
+	case tea.WindowSizeMsg:
+		c.width = msg.Width
+		c.height = msg.Height
+	}
+
+	return c, tea.Batch(cmds...)
+}
+
+func (c *completionDialogCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	maxWidth := 40
+
+	completions := c.listView.GetItems()
+
+	for _, cmd := range completions {
+		title := cmd.DisplayValue()
+		if len(title) > maxWidth-4 {
+			maxWidth = len(title) + 4
+		}
+	}
+
+	c.listView.SetMaxWidth(maxWidth)
+
+	return baseStyle.Padding(0, 0).
+		Border(lipgloss.NormalBorder()).
+		BorderBottom(false).
+		BorderRight(false).
+		BorderLeft(false).
+		BorderBackground(t.Background()).
+		BorderForeground(t.TextMuted()).
+		Width(c.width).
+		Render(c.listView.View())
+}
+
+func (c *completionDialogCmp) SetWidth(width int) {
+	c.width = width
+}
+
+func (c *completionDialogCmp) BindingKeys() []key.Binding {
+	return layout.KeyMapToSlice(completionDialogKeys)
+}
+
+func NewCompletionDialogCmp(completionProvider CompletionProvider) CompletionDialog {
+	ti := textarea.New()
+
+	items, err := completionProvider.GetChildEntries("")
+	if err != nil {
+		status.Error(err.Error())
+	}
+
+	li := utilComponents.NewSimpleList(
+		items,
+		7,
+		"No file matches found",
+		false,
+	)
+
+	return &completionDialogCmp{
+		query:                "",
+		completionProvider:   completionProvider,
+		pseudoSearchTextArea: ti,
+		listView:             li,
+	}
+}

packages/tui/internal/tui/components/dialog/custom_commands.go

@@ -0,0 +1,186 @@
+package dialog
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/sst/opencode/internal/config"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+// Command prefix constants
+const (
+	UserCommandPrefix    = "user:"
+	ProjectCommandPrefix = "project:"
+)
+
+// namedArgPattern is a regex pattern to find named arguments in the format $NAME
+var namedArgPattern = regexp.MustCompile(`\$([A-Z][A-Z0-9_]*)`)
+
+// LoadCustomCommands loads custom commands from both XDG_CONFIG_HOME and project data directory
+func LoadCustomCommands() ([]Command, error) {
+	cfg := config.Get()
+	if cfg == nil {
+		return nil, fmt.Errorf("config not loaded")
+	}
+
+	var commands []Command
+
+	// Load user commands from XDG_CONFIG_HOME/opencode/commands
+	xdgConfigHome := os.Getenv("XDG_CONFIG_HOME")
+	if xdgConfigHome == "" {
+		// Default to ~/.config if XDG_CONFIG_HOME is not set
+		home, err := os.UserHomeDir()
+		if err == nil {
+			xdgConfigHome = filepath.Join(home, ".config")
+		}
+	}
+
+	if xdgConfigHome != "" {
+		userCommandsDir := filepath.Join(xdgConfigHome, "opencode", "commands")
+		userCommands, err := loadCommandsFromDir(userCommandsDir, UserCommandPrefix)
+		if err != nil {
+			// Log error but continue - we'll still try to load other commands
+			fmt.Printf("Warning: failed to load user commands from XDG_CONFIG_HOME: %v\n", err)
+		} else {
+			commands = append(commands, userCommands...)
+		}
+	}
+
+	// Load commands from $HOME/.opencode/commands
+	home, err := os.UserHomeDir()
+	if err == nil {
+		homeCommandsDir := filepath.Join(home, ".opencode", "commands")
+		homeCommands, err := loadCommandsFromDir(homeCommandsDir, UserCommandPrefix)
+		if err != nil {
+			// Log error but continue - we'll still try to load other commands
+			fmt.Printf("Warning: failed to load home commands: %v\n", err)
+		} else {
+			commands = append(commands, homeCommands...)
+		}
+	}
+
+	// Load project commands from data directory
+	projectCommandsDir := filepath.Join(cfg.Data.Directory, "commands")
+	projectCommands, err := loadCommandsFromDir(projectCommandsDir, ProjectCommandPrefix)
+	if err != nil {
+		// Log error but return what we have so far
+		fmt.Printf("Warning: failed to load project commands: %v\n", err)
+	} else {
+		commands = append(commands, projectCommands...)
+	}
+
+	return commands, nil
+}
+
+// loadCommandsFromDir loads commands from a specific directory with the given prefix
+func loadCommandsFromDir(commandsDir string, prefix string) ([]Command, error) {
+	// Check if the commands directory exists
+	if _, err := os.Stat(commandsDir); os.IsNotExist(err) {
+		// Create the commands directory if it doesn't exist
+		if err := os.MkdirAll(commandsDir, 0755); err != nil {
+			return nil, fmt.Errorf("failed to create commands directory %s: %w", commandsDir, err)
+		}
+		// Return empty list since we just created the directory
+		return []Command{}, nil
+	}
+
+	var commands []Command
+
+	// Walk through the commands directory and load all .md files
+	err := filepath.Walk(commandsDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		// Skip directories
+		if info.IsDir() {
+			return nil
+		}
+
+		// Only process markdown files
+		if !strings.HasSuffix(strings.ToLower(info.Name()), ".md") {
+			return nil
+		}
+
+		// Read the file content
+		content, err := os.ReadFile(path)
+		if err != nil {
+			return fmt.Errorf("failed to read command file %s: %w", path, err)
+		}
+
+		// Get the command ID from the file name without the .md extension
+		commandID := strings.TrimSuffix(info.Name(), filepath.Ext(info.Name()))
+
+		// Get relative path from commands directory
+		relPath, err := filepath.Rel(commandsDir, path)
+		if err != nil {
+			return fmt.Errorf("failed to get relative path for %s: %w", path, err)
+		}
+
+		// Create the command ID from the relative path
+		// Replace directory separators with colons
+		commandIDPath := strings.ReplaceAll(filepath.Dir(relPath), string(filepath.Separator), ":")
+		if commandIDPath != "." {
+			commandID = commandIDPath + ":" + commandID
+		}
+
+		// Create a command
+		command := Command{
+			ID:          prefix + commandID,
+			Title:       prefix + commandID,
+			Description: fmt.Sprintf("Custom command from %s", relPath),
+			Handler: func(cmd Command) tea.Cmd {
+				commandContent := string(content)
+
+				// Check for named arguments
+				matches := namedArgPattern.FindAllStringSubmatch(commandContent, -1)
+				if len(matches) > 0 {
+					// Extract unique argument names
+					argNames := make([]string, 0)
+					argMap := make(map[string]bool)
+
+					for _, match := range matches {
+						argName := match[1] // Group 1 is the name without $
+						if !argMap[argName] {
+							argMap[argName] = true
+							argNames = append(argNames, argName)
+						}
+					}
+
+					// Show multi-arguments dialog for all named arguments
+					return util.CmdHandler(ShowMultiArgumentsDialogMsg{
+						CommandID: cmd.ID,
+						Content:   commandContent,
+						ArgNames:  argNames,
+					})
+				}
+
+				// No arguments needed, run command directly
+				return util.CmdHandler(CommandRunCustomMsg{
+					Content: commandContent,
+					Args:    nil, // No arguments
+				})
+			},
+		}
+
+		commands = append(commands, command)
+		return nil
+	})
+
+	if err != nil {
+		return nil, fmt.Errorf("failed to load custom commands from %s: %w", commandsDir, err)
+	}
+
+	return commands, nil
+}
+
+// CommandRunCustomMsg is sent when a custom command is executed
+type CommandRunCustomMsg struct {
+	Content string
+	Args    map[string]string // Map of argument names to values
+}

packages/tui/internal/tui/components/dialog/custom_commands_test.go

@@ -0,0 +1,106 @@
+package dialog
+
+import (
+	"testing"
+	"regexp"
+)
+
+func TestNamedArgPattern(t *testing.T) {
+	testCases := []struct {
+		input    string
+		expected []string
+	}{
+		{
+			input:    "This is a test with $ARGUMENTS placeholder",
+			expected: []string{"ARGUMENTS"},
+		},
+		{
+			input:    "This is a test with $FOO and $BAR placeholders",
+			expected: []string{"FOO", "BAR"},
+		},
+		{
+			input:    "This is a test with $FOO_BAR and $BAZ123 placeholders",
+			expected: []string{"FOO_BAR", "BAZ123"},
+		},
+		{
+			input:    "This is a test with no placeholders",
+			expected: []string{},
+		},
+		{
+			input:    "This is a test with $FOO appearing twice: $FOO",
+			expected: []string{"FOO"},
+		},
+		{
+			input:    "This is a test with $1INVALID placeholder",
+			expected: []string{},
+		},
+	}
+
+	for _, tc := range testCases {
+		matches := namedArgPattern.FindAllStringSubmatch(tc.input, -1)
+		
+		// Extract unique argument names
+		argNames := make([]string, 0)
+		argMap := make(map[string]bool)
+		
+		for _, match := range matches {
+			argName := match[1] // Group 1 is the name without $
+			if !argMap[argName] {
+				argMap[argName] = true
+				argNames = append(argNames, argName)
+			}
+		}
+		
+		// Check if we got the expected number of arguments
+		if len(argNames) != len(tc.expected) {
+			t.Errorf("Expected %d arguments, got %d for input: %s", len(tc.expected), len(argNames), tc.input)
+			continue
+		}
+		
+		// Check if we got the expected argument names
+		for _, expectedArg := range tc.expected {
+			found := false
+			for _, actualArg := range argNames {
+				if actualArg == expectedArg {
+					found = true
+					break
+				}
+			}
+			if !found {
+				t.Errorf("Expected argument %s not found in %v for input: %s", expectedArg, argNames, tc.input)
+			}
+		}
+	}
+}
+
+func TestRegexPattern(t *testing.T) {
+	pattern := regexp.MustCompile(`\$([A-Z][A-Z0-9_]*)`)
+	
+	validMatches := []string{
+		"$FOO",
+		"$BAR",
+		"$FOO_BAR",
+		"$BAZ123",
+		"$ARGUMENTS",
+	}
+	
+	invalidMatches := []string{
+		"$foo",
+		"$1BAR",
+		"$_FOO",
+		"FOO",
+		"$",
+	}
+	
+	for _, valid := range validMatches {
+		if !pattern.MatchString(valid) {
+			t.Errorf("Expected %s to match, but it didn't", valid)
+		}
+	}
+	
+	for _, invalid := range invalidMatches {
+		if pattern.MatchString(invalid) {
+			t.Errorf("Expected %s not to match, but it did", invalid)
+		}
+	}
+}

packages/tui/internal/tui/components/dialog/filepicker.go

@@ -0,0 +1,485 @@
+package dialog
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"time"
+
+	"log/slog"
+
+	"github.com/atotto/clipboard"
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/textinput"
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/status"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/image"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+const (
+	maxAttachmentSize = int64(5 * 1024 * 1024) // 5MB
+	downArrow         = "down"
+	upArrow           = "up"
+)
+
+type FilePrickerKeyMap struct {
+	Enter          key.Binding
+	Down           key.Binding
+	Up             key.Binding
+	Forward        key.Binding
+	Backward       key.Binding
+	OpenFilePicker key.Binding
+	Esc            key.Binding
+	InsertCWD      key.Binding
+	Paste          key.Binding
+}
+
+var filePickerKeyMap = FilePrickerKeyMap{
+	Enter: key.NewBinding(
+		key.WithKeys("enter"),
+		key.WithHelp("enter", "select file/enter directory"),
+	),
+	Down: key.NewBinding(
+		key.WithKeys("j", downArrow),
+		key.WithHelp("↓/j", "down"),
+	),
+	Up: key.NewBinding(
+		key.WithKeys("k", upArrow),
+		key.WithHelp("↑/k", "up"),
+	),
+	Forward: key.NewBinding(
+		key.WithKeys("l"),
+		key.WithHelp("l", "enter directory"),
+	),
+	Backward: key.NewBinding(
+		key.WithKeys("h", "backspace"),
+		key.WithHelp("h/backspace", "go back"),
+	),
+	OpenFilePicker: key.NewBinding(
+		key.WithKeys("ctrl+f"),
+		key.WithHelp("ctrl+f", "open file picker"),
+	),
+	Esc: key.NewBinding(
+		key.WithKeys("esc"),
+		key.WithHelp("esc", "close/exit"),
+	),
+	InsertCWD: key.NewBinding(
+		key.WithKeys("i"),
+		key.WithHelp("i", "manual path input"),
+	),
+	Paste: key.NewBinding(
+		key.WithKeys("ctrl+v"),
+		key.WithHelp("ctrl+v", "paste file/directory path"),
+	),
+}
+
+type filepickerCmp struct {
+	basePath       string
+	width          int
+	height         int
+	cursor         int
+	err            error
+	cursorChain    stack
+	viewport       viewport.Model
+	dirs           []os.DirEntry
+	cwdDetails     *DirNode
+	selectedFile   string
+	cwd            textinput.Model
+	ShowFilePicker bool
+	app            *app.App
+}
+
+type DirNode struct {
+	parent    *DirNode
+	child     *DirNode
+	directory string
+}
+type stack []int
+
+func (s stack) Push(v int) stack {
+	return append(s, v)
+}
+
+func (s stack) Pop() (stack, int) {
+	l := len(s)
+	return s[:l-1], s[l-1]
+}
+
+type AttachmentAddedMsg struct {
+	Attachment app.Attachment
+}
+
+func (f *filepickerCmp) Init() tea.Cmd {
+	return nil
+}
+
+func (f *filepickerCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmd tea.Cmd
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		f.width = 60
+		f.height = 20
+		f.viewport.Width = 80
+		f.viewport.Height = 22
+		f.cursor = 0
+		f.getCurrentFileBelowCursor()
+	case tea.KeyMsg:
+		if f.cwd.Focused() {
+			f.cwd, cmd = f.cwd.Update(msg)
+		}
+		switch {
+		case key.Matches(msg, filePickerKeyMap.InsertCWD):
+			f.cwd.Focus()
+			return f, cmd
+		case key.Matches(msg, filePickerKeyMap.Esc):
+			if f.cwd.Focused() {
+				f.cwd.Blur()
+			}
+		case key.Matches(msg, filePickerKeyMap.Down):
+			if !f.cwd.Focused() || msg.String() == downArrow {
+				if f.cursor < len(f.dirs)-1 {
+					f.cursor++
+					f.getCurrentFileBelowCursor()
+				}
+			}
+		case key.Matches(msg, filePickerKeyMap.Up):
+			if !f.cwd.Focused() || msg.String() == upArrow {
+				if f.cursor > 0 {
+					f.cursor--
+					f.getCurrentFileBelowCursor()
+				}
+			}
+		case key.Matches(msg, filePickerKeyMap.Enter):
+			var path string
+			var isPathDir bool
+			if f.cwd.Focused() {
+				path = f.cwd.Value()
+				fileInfo, err := os.Stat(path)
+				if err != nil {
+					status.Error("Invalid path")
+					return f, cmd
+				}
+				isPathDir = fileInfo.IsDir()
+			} else {
+				path = filepath.Join(f.cwdDetails.directory, "/", f.dirs[f.cursor].Name())
+				isPathDir = f.dirs[f.cursor].IsDir()
+			}
+			if isPathDir {
+				newWorkingDir := DirNode{parent: f.cwdDetails, directory: path}
+				f.cwdDetails.child = &newWorkingDir
+				f.cwdDetails = f.cwdDetails.child
+				f.cursorChain = f.cursorChain.Push(f.cursor)
+				f.dirs = readDir(f.cwdDetails.directory, false)
+				f.cursor = 0
+				f.cwd.SetValue(f.cwdDetails.directory)
+				f.getCurrentFileBelowCursor()
+			} else {
+				f.selectedFile = path
+				return f.addAttachmentToMessage()
+			}
+		case key.Matches(msg, filePickerKeyMap.Esc):
+			if !f.cwd.Focused() {
+				f.cursorChain = make(stack, 0)
+				f.cursor = 0
+			} else {
+				f.cwd.Blur()
+			}
+		case key.Matches(msg, filePickerKeyMap.Forward):
+			if !f.cwd.Focused() {
+				if f.dirs[f.cursor].IsDir() {
+					path := filepath.Join(f.cwdDetails.directory, "/", f.dirs[f.cursor].Name())
+					newWorkingDir := DirNode{parent: f.cwdDetails, directory: path}
+					f.cwdDetails.child = &newWorkingDir
+					f.cwdDetails = f.cwdDetails.child
+					f.cursorChain = f.cursorChain.Push(f.cursor)
+					f.dirs = readDir(f.cwdDetails.directory, false)
+					f.cursor = 0
+					f.cwd.SetValue(f.cwdDetails.directory)
+					f.getCurrentFileBelowCursor()
+				}
+			}
+		case key.Matches(msg, filePickerKeyMap.Backward):
+			if !f.cwd.Focused() {
+				if len(f.cursorChain) != 0 && f.cwdDetails.parent != nil {
+					f.cursorChain, f.cursor = f.cursorChain.Pop()
+					f.cwdDetails = f.cwdDetails.parent
+					f.cwdDetails.child = nil
+					f.dirs = readDir(f.cwdDetails.directory, false)
+					f.cwd.SetValue(f.cwdDetails.directory)
+					f.getCurrentFileBelowCursor()
+				}
+			}
+		case key.Matches(msg, filePickerKeyMap.Paste):
+			if f.cwd.Focused() {
+				val, err := clipboard.ReadAll()
+				if err != nil {
+					slog.Error("failed to read clipboard")
+					return f, cmd
+				}
+				f.cwd.SetValue(f.cwd.Value() + val)
+			}
+		case key.Matches(msg, filePickerKeyMap.OpenFilePicker):
+			f.dirs = readDir(f.cwdDetails.directory, false)
+			f.cursor = 0
+			f.getCurrentFileBelowCursor()
+		}
+	}
+	return f, cmd
+}
+
+func (f *filepickerCmp) addAttachmentToMessage() (tea.Model, tea.Cmd) {
+	// modeInfo := GetSelectedModel(config.Get())
+	// if !modeInfo.SupportsAttachments {
+	// 	status.Error(fmt.Sprintf("Model %s doesn't support attachments", modeInfo.Name))
+	// 	return f, nil
+	// }
+
+	selectedFilePath := f.selectedFile
+	if !isExtSupported(selectedFilePath) {
+		status.Error("Unsupported file")
+		return f, nil
+	}
+
+	isFileLarge, err := image.ValidateFileSize(selectedFilePath, maxAttachmentSize)
+	if err != nil {
+		status.Error("unable to read the image")
+		return f, nil
+	}
+	if isFileLarge {
+		status.Error("file too large, max 5MB")
+		return f, nil
+	}
+
+	content, err := os.ReadFile(selectedFilePath)
+	if err != nil {
+		status.Error("Unable read selected file")
+		return f, nil
+	}
+
+	mimeBufferSize := min(512, len(content))
+	mimeType := http.DetectContentType(content[:mimeBufferSize])
+	fileName := filepath.Base(selectedFilePath)
+	attachment := app.Attachment{FilePath: selectedFilePath, FileName: fileName, MimeType: mimeType, Content: content}
+	f.selectedFile = ""
+	return f, util.CmdHandler(AttachmentAddedMsg{attachment})
+}
+
+func (f *filepickerCmp) View() string {
+	t := theme.CurrentTheme()
+	const maxVisibleDirs = 20
+	const maxWidth = 80
+
+	adjustedWidth := maxWidth
+	for _, file := range f.dirs {
+		if len(file.Name()) > adjustedWidth-4 { // Account for padding
+			adjustedWidth = len(file.Name()) + 4
+		}
+	}
+	adjustedWidth = max(30, min(adjustedWidth, f.width-15)) + 1
+
+	files := make([]string, 0, maxVisibleDirs)
+	startIdx := 0
+
+	if len(f.dirs) > maxVisibleDirs {
+		halfVisible := maxVisibleDirs / 2
+		if f.cursor >= halfVisible && f.cursor < len(f.dirs)-halfVisible {
+			startIdx = f.cursor - halfVisible
+		} else if f.cursor >= len(f.dirs)-halfVisible {
+			startIdx = len(f.dirs) - maxVisibleDirs
+		}
+	}
+
+	endIdx := min(startIdx+maxVisibleDirs, len(f.dirs))
+
+	for i := startIdx; i < endIdx; i++ {
+		file := f.dirs[i]
+		itemStyle := styles.BaseStyle().Width(adjustedWidth)
+
+		if i == f.cursor {
+			itemStyle = itemStyle.
+				Background(t.Primary()).
+				Foreground(t.Background()).
+				Bold(true)
+		}
+		filename := file.Name()
+
+		if len(filename) > adjustedWidth-4 {
+			filename = filename[:adjustedWidth-7] + "..."
+		}
+		if file.IsDir() {
+			filename = filename + "/"
+		}
+
+		files = append(files, itemStyle.Padding(0, 1).Render(filename))
+	}
+
+	// Pad to always show exactly 21 lines
+	for len(files) < maxVisibleDirs {
+		files = append(files, styles.BaseStyle().Width(adjustedWidth).Render(""))
+	}
+
+	currentPath := styles.BaseStyle().
+		Height(1).
+		Width(adjustedWidth).
+		Render(f.cwd.View())
+
+	viewportstyle := lipgloss.NewStyle().
+		Width(f.viewport.Width).
+		Background(t.Background()).
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(t.TextMuted()).
+		BorderBackground(t.Background()).
+		Padding(2).
+		Render(f.viewport.View())
+	var insertExitText string
+	if f.IsCWDFocused() {
+		insertExitText = "Press esc to exit typing path"
+	} else {
+		insertExitText = "Press i to start typing path"
+	}
+
+	content := lipgloss.JoinVertical(
+		lipgloss.Left,
+		currentPath,
+		styles.BaseStyle().Width(adjustedWidth).Render(""),
+		styles.BaseStyle().Width(adjustedWidth).Render(lipgloss.JoinVertical(lipgloss.Left, files...)),
+		styles.BaseStyle().Width(adjustedWidth).Render(""),
+		styles.BaseStyle().Foreground(t.TextMuted()).Width(adjustedWidth).Render(insertExitText),
+	)
+
+	f.cwd.SetValue(f.cwd.Value())
+	contentStyle := styles.BaseStyle().Padding(1, 2).
+		Border(lipgloss.RoundedBorder()).
+		BorderBackground(t.Background()).
+		BorderForeground(t.TextMuted()).
+		Width(lipgloss.Width(content) + 4)
+
+	return lipgloss.JoinHorizontal(lipgloss.Center, contentStyle.Render(content), viewportstyle)
+}
+
+type FilepickerCmp interface {
+	tea.Model
+	ToggleFilepicker(showFilepicker bool)
+	IsCWDFocused() bool
+}
+
+func (f *filepickerCmp) ToggleFilepicker(showFilepicker bool) {
+	f.ShowFilePicker = showFilepicker
+}
+
+func (f *filepickerCmp) IsCWDFocused() bool {
+	return f.cwd.Focused()
+}
+
+func NewFilepickerCmp(app *app.App) FilepickerCmp {
+	homepath, err := os.UserHomeDir()
+	if err != nil {
+		slog.Error("error loading user files")
+		return nil
+	}
+	baseDir := DirNode{parent: nil, directory: homepath}
+	dirs := readDir(homepath, false)
+	viewport := viewport.New(0, 0)
+	currentDirectory := textinput.New()
+	currentDirectory.CharLimit = 200
+	currentDirectory.Width = 44
+	currentDirectory.Cursor.Blink = true
+	currentDirectory.SetValue(baseDir.directory)
+	return &filepickerCmp{cwdDetails: &baseDir, dirs: dirs, cursorChain: make(stack, 0), viewport: viewport, cwd: currentDirectory, app: app}
+}
+
+func (f *filepickerCmp) getCurrentFileBelowCursor() {
+	if len(f.dirs) == 0 || f.cursor < 0 || f.cursor >= len(f.dirs) {
+		slog.Error(fmt.Sprintf("Invalid cursor position. Dirs length: %d, Cursor: %d", len(f.dirs), f.cursor))
+		f.viewport.SetContent("Preview unavailable")
+		return
+	}
+
+	dir := f.dirs[f.cursor]
+	filename := dir.Name()
+	if !dir.IsDir() && isExtSupported(filename) {
+		fullPath := f.cwdDetails.directory + "/" + dir.Name()
+
+		go func() {
+			imageString, err := image.ImagePreview(f.viewport.Width-4, fullPath)
+			if err != nil {
+				slog.Error(err.Error())
+				f.viewport.SetContent("Preview unavailable")
+				return
+			}
+
+			f.viewport.SetContent(imageString)
+		}()
+	} else {
+		f.viewport.SetContent("Preview unavailable")
+	}
+}
+
+func readDir(path string, showHidden bool) []os.DirEntry {
+	slog.Info(fmt.Sprintf("Reading directory: %s", path))
+
+	entriesChan := make(chan []os.DirEntry, 1)
+	errChan := make(chan error, 1)
+
+	go func() {
+		dirEntries, err := os.ReadDir(path)
+		if err != nil {
+			status.Error(err.Error())
+			errChan <- err
+			return
+		}
+		entriesChan <- dirEntries
+	}()
+
+	select {
+	case dirEntries := <-entriesChan:
+		sort.Slice(dirEntries, func(i, j int) bool {
+			if dirEntries[i].IsDir() == dirEntries[j].IsDir() {
+				return dirEntries[i].Name() < dirEntries[j].Name()
+			}
+			return dirEntries[i].IsDir()
+		})
+
+		if showHidden {
+			return dirEntries
+		}
+
+		var sanitizedDirEntries []os.DirEntry
+		for _, dirEntry := range dirEntries {
+			isHidden, _ := IsHidden(dirEntry.Name())
+			if !isHidden {
+				if dirEntry.IsDir() || isExtSupported(dirEntry.Name()) {
+					sanitizedDirEntries = append(sanitizedDirEntries, dirEntry)
+				}
+			}
+		}
+
+		return sanitizedDirEntries
+
+	case <-errChan:
+		status.Error(fmt.Sprintf("Error reading directory %s", path))
+		return []os.DirEntry{}
+
+	case <-time.After(5 * time.Second):
+		status.Error(fmt.Sprintf("Timeout reading directory %s", path))
+		return []os.DirEntry{}
+	}
+}
+
+func IsHidden(file string) (bool, error) {
+	return strings.HasPrefix(file, "."), nil
+}
+
+func isExtSupported(path string) bool {
+	ext := strings.ToLower(filepath.Ext(path))
+	return (ext == ".jpg" || ext == ".jpeg" || ext == ".webp" || ext == ".png")
+}

packages/tui/internal/tui/components/dialog/help.go

@@ -0,0 +1,200 @@
+package dialog
+
+import (
+	"strings"
+
+	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+)
+
+type helpCmp struct {
+	width  int
+	height int
+	keys   []key.Binding
+}
+
+func (h *helpCmp) Init() tea.Cmd {
+	return nil
+}
+
+func (h *helpCmp) SetBindings(k []key.Binding) {
+	h.keys = k
+}
+
+func (h *helpCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		h.width = 90
+		h.height = msg.Height
+	}
+	return h, nil
+}
+
+func removeDuplicateBindings(bindings []key.Binding) []key.Binding {
+	seen := make(map[string]struct{})
+	result := make([]key.Binding, 0, len(bindings))
+
+	// Process bindings in reverse order
+	for i := len(bindings) - 1; i >= 0; i-- {
+		b := bindings[i]
+		k := strings.Join(b.Keys(), " ")
+		if _, ok := seen[k]; ok {
+			// duplicate, skip
+			continue
+		}
+		seen[k] = struct{}{}
+		// Add to the beginning of result to maintain original order
+		result = append([]key.Binding{b}, result...)
+	}
+
+	return result
+}
+
+func (h *helpCmp) render() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	helpKeyStyle := styles.Bold().
+		Background(t.Background()).
+		Foreground(t.Text()).
+		Padding(0, 1, 0, 0)
+
+	helpDescStyle := styles.Regular().
+		Background(t.Background()).
+		Foreground(t.TextMuted())
+
+	// Compile list of bindings to render
+	bindings := removeDuplicateBindings(h.keys)
+
+	// Enumerate through each group of bindings, populating a series of
+	// pairs of columns, one for keys, one for descriptions
+	var (
+		pairs []string
+		width int
+		rows  = 12 - 2
+	)
+
+	for i := 0; i < len(bindings); i += rows {
+		var (
+			keys  []string
+			descs []string
+		)
+		for j := i; j < min(i+rows, len(bindings)); j++ {
+			keys = append(keys, helpKeyStyle.Render(bindings[j].Help().Key))
+			descs = append(descs, helpDescStyle.Render(bindings[j].Help().Desc))
+		}
+
+		// Render pair of columns; beyond the first pair, render a three space
+		// left margin, in order to visually separate the pairs.
+		var cols []string
+		if len(pairs) > 0 {
+			cols = []string{baseStyle.Render("   ")}
+		}
+
+		maxDescWidth := 0
+		for _, desc := range descs {
+			if maxDescWidth < lipgloss.Width(desc) {
+				maxDescWidth = lipgloss.Width(desc)
+			}
+		}
+		for i := range descs {
+			remainingWidth := maxDescWidth - lipgloss.Width(descs[i])
+			if remainingWidth > 0 {
+				descs[i] = descs[i] + baseStyle.Render(strings.Repeat(" ", remainingWidth))
+			}
+		}
+		maxKeyWidth := 0
+		for _, key := range keys {
+			if maxKeyWidth < lipgloss.Width(key) {
+				maxKeyWidth = lipgloss.Width(key)
+			}
+		}
+		for i := range keys {
+			remainingWidth := maxKeyWidth - lipgloss.Width(keys[i])
+			if remainingWidth > 0 {
+				keys[i] = keys[i] + baseStyle.Render(strings.Repeat(" ", remainingWidth))
+			}
+		}
+
+		cols = append(cols,
+			strings.Join(keys, "\n"),
+			strings.Join(descs, "\n"),
+		)
+
+		pair := baseStyle.Render(lipgloss.JoinHorizontal(lipgloss.Top, cols...))
+		// check whether it exceeds the maximum width avail (the width of the
+		// terminal, subtracting 2 for the borders).
+		width += lipgloss.Width(pair)
+		if width > h.width-2 {
+			break
+		}
+		pairs = append(pairs, pair)
+	}
+
+	// https://github.com/charmbracelet/lipgloss/issues/209
+	if len(pairs) > 1 {
+		prefix := pairs[:len(pairs)-1]
+		lastPair := pairs[len(pairs)-1]
+		prefix = append(prefix, lipgloss.Place(
+			lipgloss.Width(lastPair),   // width
+			lipgloss.Height(prefix[0]), // height
+			lipgloss.Left,              // x
+			lipgloss.Top,               // y
+			lastPair,                   // content
+			lipgloss.WithWhitespaceBackground(t.Background()),
+		))
+		content := baseStyle.Width(h.width).Render(
+			lipgloss.JoinHorizontal(
+				lipgloss.Top,
+				prefix...,
+			),
+		)
+		return content
+	}
+
+	// Join pairs of columns and enclose in a border
+	content := baseStyle.Width(h.width).Render(
+		lipgloss.JoinHorizontal(
+			lipgloss.Top,
+			pairs...,
+		),
+	)
+	return content
+}
+
+func (h *helpCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	content := h.render()
+	header := baseStyle.
+		Bold(true).
+		Width(lipgloss.Width(content)).
+		Foreground(t.Primary()).
+		Render("Keyboard Shortcuts")
+
+	return baseStyle.Padding(1).
+		Border(lipgloss.RoundedBorder()).
+		BorderForeground(t.TextMuted()).
+		Width(h.width).
+		BorderBackground(t.Background()).
+		Render(
+			lipgloss.JoinVertical(lipgloss.Center,
+				header,
+				baseStyle.Render(strings.Repeat(" ", lipgloss.Width(header))),
+				content,
+			),
+		)
+}
+
+type HelpCmp interface {
+	tea.Model
+	SetBindings([]key.Binding)
+}
+
+func NewHelpCmp() HelpCmp {
+	return &helpCmp{}
+}

packages/tui/internal/tui/components/dialog/init.go

@@ -0,0 +1,189 @@
+package dialog
+
+import (
+	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+)
+
+// InitDialogCmp is a component that asks the user if they want to initialize the project.
+type InitDialogCmp struct {
+	width, height int
+	selected      int
+	keys          initDialogKeyMap
+}
+
+// NewInitDialogCmp creates a new InitDialogCmp.
+func NewInitDialogCmp() InitDialogCmp {
+	return InitDialogCmp{
+		selected: 0,
+		keys:     initDialogKeyMap{},
+	}
+}
+
+type initDialogKeyMap struct {
+	Tab    key.Binding
+	Left   key.Binding
+	Right  key.Binding
+	Enter  key.Binding
+	Escape key.Binding
+	Y      key.Binding
+	N      key.Binding
+}
+
+// ShortHelp implements key.Map.
+func (k initDialogKeyMap) ShortHelp() []key.Binding {
+	return []key.Binding{
+		key.NewBinding(
+			key.WithKeys("tab", "left", "right"),
+			key.WithHelp("tab/←/→", "toggle selection"),
+		),
+		key.NewBinding(
+			key.WithKeys("enter"),
+			key.WithHelp("enter", "confirm"),
+		),
+		key.NewBinding(
+			key.WithKeys("esc", "q"),
+			key.WithHelp("esc/q", "cancel"),
+		),
+		key.NewBinding(
+			key.WithKeys("y", "n"),
+			key.WithHelp("y/n", "yes/no"),
+		),
+	}
+}
+
+// FullHelp implements key.Map.
+func (k initDialogKeyMap) FullHelp() [][]key.Binding {
+	return [][]key.Binding{k.ShortHelp()}
+}
+
+// Init implements tea.Model.
+func (m InitDialogCmp) Init() tea.Cmd {
+	return nil
+}
+
+// Update implements tea.Model.
+func (m InitDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch {
+		case key.Matches(msg, key.NewBinding(key.WithKeys("esc"))):
+			return m, util.CmdHandler(CloseInitDialogMsg{Initialize: false})
+		case key.Matches(msg, key.NewBinding(key.WithKeys("tab", "left", "right", "h", "l"))):
+			m.selected = (m.selected + 1) % 2
+			return m, nil
+		case key.Matches(msg, key.NewBinding(key.WithKeys("enter"))):
+			return m, util.CmdHandler(CloseInitDialogMsg{Initialize: m.selected == 0})
+		case key.Matches(msg, key.NewBinding(key.WithKeys("y"))):
+			return m, util.CmdHandler(CloseInitDialogMsg{Initialize: true})
+		case key.Matches(msg, key.NewBinding(key.WithKeys("n"))):
+			return m, util.CmdHandler(CloseInitDialogMsg{Initialize: false})
+		}
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+	}
+	return m, nil
+}
+
+// View implements tea.Model.
+func (m InitDialogCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	// Calculate width needed for content
+	maxWidth := 60 // Width for explanation text
+
+	title := baseStyle.
+		Foreground(t.Primary()).
+		Bold(true).
+		Width(maxWidth).
+		Padding(0, 1).
+		Render("Initialize Project")
+
+	explanation := baseStyle.
+		Foreground(t.Text()).
+		Width(maxWidth).
+		Padding(0, 1).
+		Render("Initialization generates a new CONTEXT.md file that contains information about your codebase, this file serves as memory for each project, you can freely add to it to help the agents be better at their job.")
+
+	question := baseStyle.
+		Foreground(t.Text()).
+		Width(maxWidth).
+		Padding(1, 1).
+		Render("Would you like to initialize this project?")
+
+	maxWidth = min(maxWidth, m.width-10)
+	yesStyle := baseStyle
+	noStyle := baseStyle
+
+	if m.selected == 0 {
+		yesStyle = yesStyle.
+			Background(t.Primary()).
+			Foreground(t.Background()).
+			Bold(true)
+		noStyle = noStyle.
+			Background(t.Background()).
+			Foreground(t.Primary())
+	} else {
+		noStyle = noStyle.
+			Background(t.Primary()).
+			Foreground(t.Background()).
+			Bold(true)
+		yesStyle = yesStyle.
+			Background(t.Background()).
+			Foreground(t.Primary())
+	}
+
+	yes := yesStyle.Padding(0, 3).Render("Yes")
+	no := noStyle.Padding(0, 3).Render("No")
+
+	buttons := lipgloss.JoinHorizontal(lipgloss.Center, yes, baseStyle.Render("  "), no)
+	buttons = baseStyle.
+		Width(maxWidth).
+		Padding(1, 0).
+		Render(buttons)
+
+	content := lipgloss.JoinVertical(
+		lipgloss.Left,
+		title,
+		baseStyle.Width(maxWidth).Render(""),
+		explanation,
+		question,
+		buttons,
+		baseStyle.Width(maxWidth).Render(""),
+	)
+
+	return baseStyle.Padding(1, 2).
+		Border(lipgloss.RoundedBorder()).
+		BorderBackground(t.Background()).
+		BorderForeground(t.TextMuted()).
+		Width(lipgloss.Width(content) + 4).
+		Render(content)
+}
+
+// SetSize sets the size of the component.
+func (m *InitDialogCmp) SetSize(width, height int) {
+	m.width = width
+	m.height = height
+}
+
+// Bindings implements layout.Bindings.
+func (m InitDialogCmp) Bindings() []key.Binding {
+	return m.keys.ShortHelp()
+}
+
+// CloseInitDialogMsg is a message that is sent when the init dialog is closed.
+type CloseInitDialogMsg struct {
+	Initialize bool
+}
+
+// ShowInitDialogMsg is a message that is sent to show the init dialog.
+type ShowInitDialogMsg struct {
+	Show bool
+}

packages/tui/internal/tui/components/dialog/models.go

@@ -0,0 +1,327 @@
+package dialog
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/charmbracelet/bubbles/key"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/tui/app"
+	"github.com/sst/opencode/internal/tui/layout"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+	"github.com/sst/opencode/pkg/client"
+)
+
+const (
+	numVisibleModels = 10
+	maxDialogWidth   = 40
+)
+
+// CloseModelDialogMsg is sent when a model is selected
+type CloseModelDialogMsg struct {
+	Provider *client.ProviderInfo
+	Model    *client.ProviderModel
+}
+
+// ModelDialog interface for the model selection dialog
+type ModelDialog interface {
+	tea.Model
+	layout.Bindings
+
+	SetProviders(providers []client.ProviderInfo)
+}
+
+type modelDialogCmp struct {
+	app                *app.App
+	availableProviders []client.ProviderInfo
+	provider           client.ProviderInfo
+	model              *client.ProviderModel
+
+	selectedIdx     int
+	width           int
+	height          int
+	scrollOffset    int
+	hScrollOffset   int
+	hScrollPossible bool
+}
+
+type modelKeyMap struct {
+	Up     key.Binding
+	Down   key.Binding
+	Left   key.Binding
+	Right  key.Binding
+	Enter  key.Binding
+	Escape key.Binding
+	J      key.Binding
+	K      key.Binding
+	H      key.Binding
+	L      key.Binding
+}
+
+var modelKeys = modelKeyMap{
+	Up: key.NewBinding(
+		key.WithKeys("up"),
+		key.WithHelp("↑", "previous model"),
+	),
+	Down: key.NewBinding(
+		key.WithKeys("down"),
+		key.WithHelp("↓", "next model"),
+	),
+	Left: key.NewBinding(
+		key.WithKeys("left"),
+		key.WithHelp("←", "scroll left"),
+	),
+	Right: key.NewBinding(
+		key.WithKeys("right"),
+		key.WithHelp("→", "scroll right"),
+	),
+	Enter: key.NewBinding(
+		key.WithKeys("enter"),
+		key.WithHelp("enter", "select model"),
+	),
+	Escape: key.NewBinding(
+		key.WithKeys("esc"),
+		key.WithHelp("esc", "close"),
+	),
+	J: key.NewBinding(
+		key.WithKeys("j"),
+		key.WithHelp("j", "next model"),
+	),
+	K: key.NewBinding(
+		key.WithKeys("k"),
+		key.WithHelp("k", "previous model"),
+	),
+	H: key.NewBinding(
+		key.WithKeys("h"),
+		key.WithHelp("h", "scroll left"),
+	),
+	L: key.NewBinding(
+		key.WithKeys("l"),
+		key.WithHelp("l", "scroll right"),
+	),
+}
+
+func (m *modelDialogCmp) Init() tea.Cmd {
+	// cfg := config.Get()
+	// modelInfo := GetSelectedModel(cfg)
+	// m.availableProviders = getEnabledProviders(cfg)
+	// m.hScrollPossible = len(m.availableProviders) > 1
+
+	// m.provider = modelInfo.Provider
+	// m.hScrollOffset = findProviderIndex(m.availableProviders, m.provider)
+
+	// m.setupModelsForProvider(m.provider)
+
+	m.availableProviders, _ = m.app.ListProviders(context.Background())
+	m.hScrollOffset = 0
+	m.hScrollPossible = len(m.availableProviders) > 1
+	m.provider = m.availableProviders[m.hScrollOffset]
+
+	return nil
+}
+
+func (m *modelDialogCmp) SetProviders(providers []client.ProviderInfo) {
+	m.availableProviders = providers
+}
+
+func (m *modelDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch {
+		case key.Matches(msg, modelKeys.Up) || key.Matches(msg, modelKeys.K):
+			m.moveSelectionUp()
+		case key.Matches(msg, modelKeys.Down) || key.Matches(msg, modelKeys.J):
+			m.moveSelectionDown()
+		case key.Matches(msg, modelKeys.Left) || key.Matches(msg, modelKeys.H):
+			if m.hScrollPossible {
+				m.switchProvider(-1)
+			}
+		case key.Matches(msg, modelKeys.Right) || key.Matches(msg, modelKeys.L):
+			if m.hScrollPossible {
+				m.switchProvider(1)
+			}
+		case key.Matches(msg, modelKeys.Enter):
+			return m, util.CmdHandler(CloseModelDialogMsg{Provider: &m.provider, Model: &m.provider.Models[m.selectedIdx]})
+		case key.Matches(msg, modelKeys.Escape):
+			return m, util.CmdHandler(CloseModelDialogMsg{})
+		}
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+	}
+
+	return m, nil
+}
+
+// moveSelectionUp moves the selection up or wraps to bottom
+func (m *modelDialogCmp) moveSelectionUp() {
+	if m.selectedIdx > 0 {
+		m.selectedIdx--
+	} else {
+		m.selectedIdx = len(m.provider.Models) - 1
+		m.scrollOffset = max(0, len(m.provider.Models)-numVisibleModels)
+	}
+
+	// Keep selection visible
+	if m.selectedIdx < m.scrollOffset {
+		m.scrollOffset = m.selectedIdx
+	}
+}
+
+// moveSelectionDown moves the selection down or wraps to top
+func (m *modelDialogCmp) moveSelectionDown() {
+	if m.selectedIdx < len(m.provider.Models)-1 {
+		m.selectedIdx++
+	} else {
+		m.selectedIdx = 0
+		m.scrollOffset = 0
+	}
+
+	// Keep selection visible
+	if m.selectedIdx >= m.scrollOffset+numVisibleModels {
+		m.scrollOffset = m.selectedIdx - (numVisibleModels - 1)
+	}
+}
+
+func (m *modelDialogCmp) switchProvider(offset int) {
+	newOffset := m.hScrollOffset + offset
+
+	// Ensure we stay within bounds
+	if newOffset < 0 {
+		newOffset = len(m.availableProviders) - 1
+	}
+	if newOffset >= len(m.availableProviders) {
+		newOffset = 0
+	}
+
+	m.hScrollOffset = newOffset
+	m.provider = m.availableProviders[m.hScrollOffset]
+	m.setupModelsForProvider(m.provider.Id)
+}
+
+func (m *modelDialogCmp) View() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	// Capitalize first letter of provider name
+	title := baseStyle.
+		Foreground(t.Primary()).
+		Bold(true).
+		Width(maxDialogWidth).
+		Padding(0, 0, 1).
+		Render(fmt.Sprintf("Select %s Model", m.provider.Name))
+
+	// Render visible models
+	endIdx := min(m.scrollOffset+numVisibleModels, len(m.provider.Models))
+	modelItems := make([]string, 0, endIdx-m.scrollOffset)
+
+	for i := m.scrollOffset; i < endIdx; i++ {
+		itemStyle := baseStyle.Width(maxDialogWidth)
+		if i == m.selectedIdx {
+			itemStyle = itemStyle.Background(t.Primary()).
+				Foreground(t.Background()).Bold(true)
+		}
+		modelItems = append(modelItems, itemStyle.Render(*m.provider.Models[i].Name))
+	}
+
+	scrollIndicator := m.getScrollIndicators(maxDialogWidth)
+
+	content := lipgloss.JoinVertical(
+		lipgloss.Left,
+		title,
+		baseStyle.Width(maxDialogWidth).Render(lipgloss.JoinVertical(lipgloss.Left, modelItems...)),
+		scrollIndicator,
+	)
+
+	return baseStyle.Padding(1, 2).
+		Border(lipgloss.RoundedBorder()).
+		BorderBackground(t.Background()).
+		BorderForeground(t.TextMuted()).
+		Width(lipgloss.Width(content) + 4).
+		Render(content)
+}
+
+func (m *modelDialogCmp) getScrollIndicators(maxWidth int) string {
+	var indicator string
+
+	if len(m.provider.Models) > numVisibleModels {
+		if m.scrollOffset > 0 {
+			indicator += "↑ "
+		}
+		if m.scrollOffset+numVisibleModels < len(m.provider.Models) {
+			indicator += "↓ "
+		}
+	}
+
+	if m.hScrollPossible {
+		if m.hScrollOffset > 0 {
+			indicator = "← " + indicator
+		}
+		if m.hScrollOffset < len(m.availableProviders)-1 {
+			indicator += "→"
+		}
+	}
+
+	if indicator == "" {
+		return ""
+	}
+
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	return baseStyle.
+		Foreground(t.Primary()).
+		Width(maxWidth).
+		Align(lipgloss.Right).
+		Bold(true).
+		Render(indicator)
+}
+
+func (m *modelDialogCmp) BindingKeys() []key.Binding {
+	return layout.KeyMapToSlice(modelKeys)
+}
+
+// findProviderIndex returns the index of the provider in the list, or -1 if not found
+// func findProviderIndex(providers []string, provider string) int {
+// 	for i, p := range providers {
+// 		if p == provider {
+// 			return i
+// 		}
+// 	}
+// 	return -1
+// }
+
+func (m *modelDialogCmp) setupModelsForProvider(_ string) {
+	m.selectedIdx = 0
+	m.scrollOffset = 0
+
+	// cfg := config.Get()
+	// agentCfg := cfg.Agents[config.AgentPrimary]
+	// selectedModelId := agentCfg.Model
+
+	// m.provider = provider
+	// m.models = getModelsForProvider(provider)
+
+	// Try to select the current model if it belongs to this provider
+	// if provider == models.SupportedModels[selectedModelId].Provider {
+	// 	for i, model := range m.models {
+	// 		if model.ID == selectedModelId {
+	// 			m.selectedIdx = i
+	// 			// Adjust scroll position to keep selected model visible
+	// 			if m.selectedIdx >= numVisibleModels {
+	// 				m.scrollOffset = m.selectedIdx - (numVisibleModels - 1)
+	// 			}
+	// 			break
+	// 		}
+	// 	}
+	// }
+}
+
+func NewModelDialogCmp(app *app.App) ModelDialog {
+	return &modelDialogCmp{
+		app: app,
+	}
+}

packages/tui/internal/tui/components/dialog/permission.go

@@ -0,0 +1,502 @@
+package dialog
+
+import (
+	"fmt"
+	"github.com/charmbracelet/bubbles/key"
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+	"github.com/sst/opencode/internal/tui/layout"
+	"github.com/sst/opencode/internal/tui/styles"
+	"github.com/sst/opencode/internal/tui/theme"
+	"github.com/sst/opencode/internal/tui/util"
+	"strings"
+)
+
+type PermissionAction string
+
+// Permission responses
+const (
+	PermissionAllow           PermissionAction = "allow"
+	PermissionAllowForSession PermissionAction = "allow_session"
+	PermissionDeny            PermissionAction = "deny"
+)
+
+// PermissionResponseMsg represents the user's response to a permission request
+type PermissionResponseMsg struct {
+	// Permission permission.PermissionRequest
+	Action PermissionAction
+}
+
+// PermissionDialogCmp interface for permission dialog component
+type PermissionDialogCmp interface {
+	tea.Model
+	layout.Bindings
+	// SetPermissions(permission permission.PermissionRequest) tea.Cmd
+}
+
+type permissionsMapping struct {
+	Left         key.Binding
+	Right        key.Binding
+	EnterSpace   key.Binding
+	Allow        key.Binding
+	AllowSession key.Binding
+	Deny         key.Binding
+	Tab          key.Binding
+}
+
+var permissionsKeys = permissionsMapping{
+	Left: key.NewBinding(
+		key.WithKeys("left"),
+		key.WithHelp("←", "switch options"),
+	),
+	Right: key.NewBinding(
+		key.WithKeys("right"),
+		key.WithHelp("→", "switch options"),
+	),
+	EnterSpace: key.NewBinding(
+		key.WithKeys("enter", " "),
+		key.WithHelp("enter/space", "confirm"),
+	),
+	Allow: key.NewBinding(
+		key.WithKeys("a"),
+		key.WithHelp("a", "allow"),
+	),
+	AllowSession: key.NewBinding(
+		key.WithKeys("s"),
+		key.WithHelp("s", "allow for session"),
+	),
+	Deny: key.NewBinding(
+		key.WithKeys("d"),
+		key.WithHelp("d", "deny"),
+	),
+	Tab: key.NewBinding(
+		key.WithKeys("tab"),
+		key.WithHelp("tab", "switch options"),
+	),
+}
+
+// permissionDialogCmp is the implementation of PermissionDialog
+type permissionDialogCmp struct {
+	width  int
+	height int
+	// permission      permission.PermissionRequest
+	windowSize      tea.WindowSizeMsg
+	contentViewPort viewport.Model
+	selectedOption  int // 0: Allow, 1: Allow for session, 2: Deny
+
+	diffCache     map[string]string
+	markdownCache map[string]string
+}
+
+func (p *permissionDialogCmp) Init() tea.Cmd {
+	return p.contentViewPort.Init()
+}
+
+func (p *permissionDialogCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	var cmds []tea.Cmd
+
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		p.windowSize = msg
+		cmd := p.SetSize()
+		cmds = append(cmds, cmd)
+		p.markdownCache = make(map[string]string)
+		p.diffCache = make(map[string]string)
+		// case tea.KeyMsg:
+		// 	switch {
+		// 	case key.Matches(msg, permissionsKeys.Right) || key.Matches(msg, permissionsKeys.Tab):
+		// 		p.selectedOption = (p.selectedOption + 1) % 3
+		// 		return p, nil
+		// 	case key.Matches(msg, permissionsKeys.Left):
+		// 		p.selectedOption = (p.selectedOption + 2) % 3
+		// 	case key.Matches(msg, permissionsKeys.EnterSpace):
+		// 		return p, p.selectCurrentOption()
+		// 	case key.Matches(msg, permissionsKeys.Allow):
+		// 		return p, util.CmdHandler(PermissionResponseMsg{Action: PermissionAllow, Permission: p.permission})
+		// 	case key.Matches(msg, permissionsKeys.AllowSession):
+		// 		return p, util.CmdHandler(PermissionResponseMsg{Action: PermissionAllowForSession, Permission: p.permission})
+		// 	case key.Matches(msg, permissionsKeys.Deny):
+		// 		return p, util.CmdHandler(PermissionResponseMsg{Action: PermissionDeny, Permission: p.permission})
+		// 	default:
+		// 		// Pass other keys to viewport
+		// 		viewPort, cmd := p.contentViewPort.Update(msg)
+		// 		p.contentViewPort = viewPort
+		// 		cmds = append(cmds, cmd)
+		// 	}
+	}
+
+	return p, tea.Batch(cmds...)
+}
+
+func (p *permissionDialogCmp) selectCurrentOption() tea.Cmd {
+	var action PermissionAction
+
+	switch p.selectedOption {
+	case 0:
+		action = PermissionAllow
+	case 1:
+		action = PermissionAllowForSession
+	case 2:
+		action = PermissionDeny
+	}
+
+	return util.CmdHandler(PermissionResponseMsg{Action: action}) // , Permission: p.permission})
+}
+
+func (p *permissionDialogCmp) renderButtons() string {
+	t := theme.CurrentTheme()
+	baseStyle := styles.BaseStyle()
+
+	allowStyle := baseStyle
+	allowSessionStyle := baseStyle
+	denyStyle := baseStyle
+	spacerStyle := baseStyle.Background(t.Background())
+
+	// Style the selected button
+	switch p.selectedOption {
+	case 0:
+		allowStyle = allowStyle.Background(t.Primary()).Foreground(t.Background())
+		allowSessionStyle = allowSessionStyle.Background(t.Background()).Foreground(t.Primary())
+		denyStyle = denyStyle.Background(t.Background()).Foreground(t.Primary())
+	case 1:
+		allowStyle = allowStyle.Background(t.Background()).Foreground(t.Primary())
+		allowSessionStyle = allowSessionStyle.Background(t.Primary()).Foreground(t.Background())
+		denyStyle = denyStyle.Background(t.Background()).Foreground(t.Primary())
+	case 2:
+		allowStyle = allowStyle.Background(t.Background()).Foreground(t.Primary())
+		allowSessionStyle = allowSessionStyle.Background(t.Background()).Foreground(t.Primary())
+		denyStyle = denyStyle.Background(t.Primary()).Foreground(t.Background())
+	}
+
+	allowButton := allowStyle.Padding(0, 1).Render("Allow (a)")
+	allowSessionButton := allowSessionStyle.Padding(0, 1).Render("Allow for session (s)")
+	denyButton := denyStyle.Padding(0, 1).Render("Deny (d)")
+
+	content := lipgloss.JoinHorizontal(
+		lipgloss.Left,
+		allowButton,
+		spacerStyle.Render("  "),
+		allowSessionButton,
+		spacerStyle.Render("  "),
+		denyButton,
+		spacerStyle.Render("  "),
+	)
+
+	remainingWidth := p.width - lipgloss.Width(content)
+	if remainingWidth > 0 {
+		content = spacerStyle.Render(strings.Repeat(" ", remainingWidth)) + content
+	}
+	return content
+}
+
+func (p *permissionDialogCmp) renderHeader() string {
+	return "NOT IMPLEMENTED"
+	// t := theme.CurrentTheme()
+	// baseStyle := styles.BaseStyle()
+	//
+	// toolKey := baseStyle.Foreground(t.TextMuted()).Bold(true).Render("Tool")
+	// toolValue := baseStyle.
+	// 	Foreground(t.Text()).
+	// 	Width(p.width - lipgloss.Width(toolKey)).
+	// 	Render(fmt.Sprintf(": %s", p.permission.ToolName))
+	//
+	// pathKey := baseStyle.Foreground(t.TextMuted()).Bold(true).Render("Path")
+	//
+	// // Get the current working directory to display relative path
+	// relativePath := p.permission.Path
+	// if filepath.IsAbs(relativePath) {
+	// 	if cwd, err := filepath.Rel(config.WorkingDirectory(), relativePath); err == nil {
+	// 		relativePath = cwd
+	// 	}
+	// }
+	//
+	// pathValue := baseStyle.
+	// 	Foreground(t.Text()).
+	// 	Width(p.width - lipgloss.Width(pathKey)).
+	// 	Render(fmt.Sprintf(": %s", relativePath))
+	//
+	// headerParts := []string{
+	// 	lipgloss.JoinHorizontal(
+	// 		lipgloss.Left,
+	// 		toolKey,
+	// 		toolValue,
+	// 	),
+	// 	baseStyle.Render(strings.Repeat(" ", p.width)),
+	// 	lipgloss.JoinHorizontal(
+	// 		lipgloss.Left,
+	// 		pathKey,
+	// 		pathValue,
+	// 	),
+	// 	baseStyle.Render(strings.Repeat(" ", p.width)),
+	// }
+	//
+	// // Add tool-specific header information
+	// switch p.permission.ToolName {
+	// case "bash":
+	// 	headerParts = append(headerParts, baseStyle.Foreground(t.TextMuted()).Width(p.width).Bold(true).Render("Command"))
+	// case "edit":
+	// 	headerParts = append(headerParts, baseStyle.Foreground(t.TextMuted()).Width(p.width).Bold(true).Render("Diff"))
+	// case "write":
+	// 	headerParts = append(headerParts, baseStyle.Foreground(t.TextMuted()).Width(p.width).Bold(true).Render("Diff"))
+	// case "fetch":
+	// 	headerParts = append(headerParts, baseStyle.Foreground(t.TextMuted()).Width(p.width).Bold(true).Render("URL"))
+	// }
+	//
+	// return lipgloss.NewStyle().Background(t.Background()).Render(lipgloss.JoinVertical(lipgloss.Left, headerParts...))
+}
+
+func (p *permissionDialogCmp) renderBashContent() string {
+	// t := theme.CurrentTheme()
+	// baseStyle := styles.BaseStyle()
+	//
+	// if pr, ok := p.permission.Params.(tools.BashPermissionsParams); ok {
+	// 	content := fmt.Sprintf("```bash\n%s\n```", pr.Command)
+	//
+	// 	// Use the cache for markdown rendering
+	// 	renderedContent := p.GetOrSetMarkdown(p.permission.ID, func() (string, error) {
+	// 		r := styles.GetMarkdownRenderer(p.width - 10)
+	// 		s, err := r.Render(content)
+	// 		return styles.ForceReplaceBackgroundWithLipgloss(s, t.Background()), err
+	// 	})
+	//
+	// 	finalContent := baseStyle.
+	// 		Width(p.contentViewPort.Width).
+	// 		Render(renderedContent)
+	// 	p.contentViewPort.SetContent(finalContent)
+	// 	return p.styleViewport()
+	// }
+	return ""
+}
+
+func (p *permissionDialogCmp) renderEditContent() string {
+	// if pr, ok := p.permission.Params.(tools.EditPermissionsParams); ok {
+	// 	diff := p.GetOrSetDiff(p.permission.ID, func() (string, error) {
+	// 		return diff.FormatDiff(pr.Diff, diff.WithTotalWidth(p.contentViewPort.Width))
+	// 	})
+	//
+	// 	p.contentViewPort.SetContent(diff)
+	// 	return p.styleViewport()
+	// }
+	return ""
+}
+
+func (p *permissionDialogCmp) renderPatchContent() string {
+	// if pr, ok := p.permission.Params.(tools.EditPermissionsParams); ok {
+	// 	diff := p.GetOrSetDiff(p.permission.ID, func() (string, error) {
+	// 		return diff.FormatDiff(pr.Diff, diff.WithTotalWidth(p.contentViewPort.Width))
+	// 	})
+	//
+	// 	p.contentViewPort.SetContent(diff)
+	// 	return p.styleViewport()
+	// }
+	return ""
+}
+
+func (p *permissionDialogCmp) renderWriteContent() string {
+	// if pr, ok := p.permission.Params.(tools.WritePermissionsParams); ok {
+	// 	// Use the cache for diff rendering
+	// 	diff := p.GetOrSetDiff(p.permission.ID, func() (string, error) {
+	// 		return diff.FormatDiff(pr.Diff, diff.WithTotalWidth(p.contentViewPort.Width))
+	// 	})
+	//
+	// 	p.contentViewPort.SetContent(diff)
+	// 	return p.styleViewport()
+	// }
+	return ""
+}
+
+func (p *permissionDialogCmp) renderFetchContent() string {
+	// 	t := theme.CurrentTheme()
+	// 	baseStyle := styles.BaseStyle()
+	//
+	// 	if pr, ok := p.permission.Params.(tools.FetchPermissionsParams); ok {
+	// 		content := fmt.Sprintf("```bash\n%s\n```", pr.URL)
+	//
+	// 		// Use the cache for markdown rendering
+	// 		renderedContent := p.GetOrSetMarkdown(p.permission.ID, func() (string, error) {
+	// 			r := styles.GetMarkdownRenderer(p.width - 10)
+	// 			s, err := r.Render(content)
+	// 			return styles.ForceReplaceBackgroundWithLipgloss(s, t.Background()), err
+	// 		})
+	//
+	// 		finalContent := baseStyle.
+	// 			Width(p.contentViewPort.Width).
+	// 			Render(renderedContent)
+	// 		p.contentViewPort.SetContent(finalContent)
+	// 		return p.styleViewport()
+	// 	}
+	return ""
+}
+
+func (p *permissionDialogCmp) renderDefaultContent() string {
+	// 	t := theme.CurrentTheme()
+	// 	baseStyle := styles.BaseStyle()
+	//
+	// 	content := p.permission.Description
+	//
+	// 	// Use the cache for markdown rendering
+	// 	renderedContent := p.GetOrSetMarkdown(p.permission.ID, func() (string, error) {
+	// 		r := styles.GetMarkdownRenderer(p.width - 10)
+	// 		s, err := r.Render(content)
+	// 		return styles.ForceReplaceBackgroundWithLipgloss(s, t.Background()), err
+	// 	})
+	//
+	// 	finalContent := baseStyle.
+	// 		Width(p.contentViewPort.Width).
+	// 		Render(renderedContent)
+	// 	p.contentViewPort.SetContent(finalContent)
+	//
+	// 	if renderedContent == "" {
+	// 		return ""
+	// 	}
+	//
+	return p.styleViewport()
+}
+
+func (p *permissionDialogCmp) styleViewport() string {
+	t := theme.CurrentTheme()
+	contentStyle := lipgloss.NewStyle().
+		Background(t.Background())
+
+	return contentStyle.Render(p.contentViewPort.View())
+}
+
+func (p *permissionDialogCmp) render() string {
+	return "NOT IMPLEMENTED"
+	// t := theme.CurrentTheme()
+	// baseStyle := styles.BaseStyle()
+	//
+	// title := baseStyle.
+	// 	Bold(true).
+	// 	Width(p.width - 4).
+	// 	Foreground(t.Primary()).
+	// 	Render("Permission Required")
+	// // Render header
+	// headerContent := p.renderHeader()
+	// // Render buttons
+	// buttons := p.renderButtons()
+	//
+	// // Calculate content height dynamically based on window size
+	// p.contentViewPort.Height = p.height - lipgloss.Height(headerContent) - lipgloss.Height(buttons) - 2 - lipgloss.Height(title)
+	// p.contentViewPort.Width = p.width - 4
+	//
+	// // Render content based on tool type
+	// var contentFinal string
+	// switch p.permission.ToolName {
+	// case "bash":
+	// 	contentFinal = p.renderBashContent()
+	// case "edit":
+	// 	contentFinal = p.renderEditContent()
+	// case "patch":
+	// 	contentFinal = p.renderPatchContent()
+	// case "write":
+	// 	contentFinal = p.renderWriteContent()
+	// case "fetch":
+	// 	contentFinal = p.renderFetchContent()
+	// default:
+	// 	contentFinal = p.renderDefaultContent()
+	// }
+	//
+	// content := lipgloss.JoinVertical(
+	// 	lipgloss.Top,
+	// 	title,
+	// 	baseStyle.Render(strings.Repeat(" ", lipgloss.Width(title))),
+	// 	headerContent,
+	// 	contentFinal,
+	// 	buttons,
+	// 	baseStyle.Render(strings.Repeat(" ", p.width-4)),
+	// )
+	//
+	// return baseStyle.
+	// 	Padding(1, 0, 0, 1).
+	// 	Border(lipgloss.RoundedBorder()).
+	// 	BorderBackground(t.Background()).
+	// 	BorderForeground(t.TextMuted()).
+	// 	Width(p.width).
+	// 	Height(p.height).
+	// 	Render(
+	// 		content,
+	// 	)
+}
+
+func (p *permissionDialogCmp) View() string {
+	return p.render()
+}
+
+func (p *permissionDialogCmp) BindingKeys() []key.Binding {
+	return layout.KeyMapToSlice(permissionsKeys)
+}
+
+func (p *permissionDialogCmp) SetSize() tea.Cmd {
+	// if p.permission.ID == "" {
+	// 	return nil
+	// }
+	// switch p.permission.ToolName {
+	// case "bash":
+	// 	p.width = int(float64(p.windowSize.Width) * 0.4)
+	// 	p.height = int(float64(p.windowSize.Height) * 0.3)
+	// case "edit":
+	// 	p.width = int(float64(p.windowSize.Width) * 0.8)
+	// 	p.height = int(float64(p.windowSize.Height) * 0.8)
+	// case "write":
+	// 	p.width = int(float64(p.windowSize.Width) * 0.8)
+	// 	p.height = int(float64(p.windowSize.Height) * 0.8)
+	// case "fetch":
+	// 	p.width = int(float64(p.windowSize.Width) * 0.4)
+	// 	p.height = int(float64(p.windowSize.Height) * 0.3)
+	// default:
+	// 	p.width = int(float64(p.windowSize.Width) * 0.7)
+	// 	p.height = int(float64(p.windowSize.Height) * 0.5)
+	// }
+	return nil
+}
+
+// func (p *permissionDialogCmp) SetPermissions(permission permission.PermissionRequest) tea.Cmd {
+// 	p.permission = permission
+// 	return p.SetSize()
+// }
+
+// Helper to get or set cached diff content
+func (c *permissionDialogCmp) GetOrSetDiff(key string, generator func() (string, error)) string {
+	if cached, ok := c.diffCache[key]; ok {
+		return cached
+	}
+
+	content, err := generator()
+	if err != nil {
+		return fmt.Sprintf("Error formatting diff: %v", err)
+	}
+
+	c.diffCache[key] = content
+
+	return content
+}
+
+// Helper to get or set cached markdown content
+func (c *permissionDialogCmp) GetOrSetMarkdown(key string, generator func() (string, error)) string {
+	if cached, ok := c.markdownCache[key]; ok {
+		return cached
+	}
+
+	content, err := generator()
+	if err != nil {
+		return fmt.Sprintf("Error rendering markdown: %v", err)
+	}
+
+	c.markdownCache[key] = content
+
+	return content
+}
+
+func NewPermissionDialogCmp() PermissionDialogCmp {
+	// Create viewport for content
+	contentViewport := viewport.New(0, 0)
+
+	return &permissionDialogCmp{
+		contentViewPort: contentViewport,
+		selectedOption:  0, // Default to "Allow"
+		diffCache:       make(map[string]string),
+		markdownCache:   make(map[string]string),
+	}
+}