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

import { z } from "zod"
import { Tool } from "./tool"
import path from "path"
import { LSP } from "../lsp"
import { App } from "../app/app"
import DESCRIPTION from "./lsp-diagnostics.txt"

export const LspDiagnosticTool = Tool.define({
  id: "lsp_diagnostics",
  description: DESCRIPTION,
  parameters: z.object({
    path: z.string().describe("The path to the file to get diagnostics."),
  }),
  execute: async (args) => {
    const app = App.info()
    const normalized = path.isAbsolute(args.path)
      ? args.path
      : path.join(app.path.cwd, args.path)
    await LSP.touchFile(normalized, true)
    const diagnostics = await LSP.diagnostics()
    const file = diagnostics[normalized]
    return {
      metadata: {
        diagnostics,
        title: path.relative(app.path.root, normalized),
      },
      output: file?.length
        ? file.map(LSP.Diagnostic.pretty).join("\n")
        : "No errors found",
    }
  },
})