diff --git a/crates/goose-mcp/src/developer/rmcp_developer.rs b/crates/goose-mcp/src/developer/rmcp_developer.rs
index bbd91d96ae..14f860d8d4 100644
--- a/crates/goose-mcp/src/developer/rmcp_developer.rs
+++ b/crates/goose-mcp/src/developer/rmcp_developer.rs
@@ -167,9 +167,17 @@ fn load_prompt_files() -> HashMap<String, Prompt> {
     prompts
 }
 
+/// Check if developer extension is in read-only mode
+fn is_readonly_mode() -> bool {
+    std::env::var("DEVELOPER_READONLY")
+        .map(|v| v == "1" || v.to_lowercase() == "true")
+        .unwrap_or(false)
+}
+
 /// Developer MCP Server using official RMCP SDK
 #[derive(Clone)]
 pub struct DeveloperServer {
+    readonly: bool,
     tool_router: ToolRouter<Self>,
     file_history: Arc<Mutex<HashMap<PathBuf, Vec<String>>>>,
     ignore_patterns: Gitignore,
@@ -558,7 +566,11 @@ impl DeveloperServer {
         // Initialize editor model for AI-powered code editing
         let editor_model = create_editor_model();
 
+        // Check if read-only mode is enabled
+        let readonly = is_readonly_mode();
+
         Self {
+            readonly,
             tool_router: Self::tool_router(),
             file_history: Arc::new(Mutex::new(HashMap::new())),
             ignore_patterns,
@@ -577,6 +589,15 @@ impl DeveloperServer {
         description = "List all available window titles that can be used with screen_capture. Returns a list of window titles that can be used with the window_title parameter of the screen_capture tool."
     )]
     pub async fn list_windows(&self) -> Result<CallToolResult, ErrorData> {
+        // Check if in read-only mode
+        if self.readonly {
+            return Err(ErrorData::new(
+                ErrorCode::INVALID_PARAMS,
+                "list_windows is not allowed in read-only mode".to_string(),
+                None,
+            ));
+        }
+
         let windows = Window::all().map_err(|_| {
             ErrorData::new(
                 ErrorCode::INTERNAL_ERROR,
@@ -612,6 +633,15 @@ impl DeveloperServer {
         &self,
         params: Parameters<ScreenCaptureParams>,
     ) -> Result<CallToolResult, ErrorData> {
+        // Check if in read-only mode
+        if self.readonly {
+            return Err(ErrorData::new(
+                ErrorCode::INVALID_PARAMS,
+                "screen_capture is not allowed in read-only mode".to_string(),
+                None,
+            ));
+        }
+
         let params = params.0;
 
         let mut image = if let Some(window_title) = &params.window_title {
@@ -754,6 +784,14 @@ impl DeveloperServer {
                 Ok(CallToolResult::success(content))
             }
             "write" => {
+                // Check if in read-only mode
+                if self.readonly {
+                    return Err(ErrorData::new(
+                        ErrorCode::INVALID_PARAMS,
+                        "Command 'write' is not allowed in read-only mode. Only 'view' is permitted.".to_string(),
+                        None,
+                    ));
+                }
                 let file_text = params.file_text.ok_or_else(|| {
                     ErrorData::new(
                         ErrorCode::INVALID_PARAMS,
@@ -765,6 +803,14 @@ impl DeveloperServer {
                 Ok(CallToolResult::success(content))
             }
             "str_replace" => {
+                // Check if in read-only mode
+                if self.readonly {
+                    return Err(ErrorData::new(
+                        ErrorCode::INVALID_PARAMS,
+                        "Command 'str_replace' is not allowed in read-only mode. Only 'view' is permitted.".to_string(),
+                        None,
+                    ));
+                }
                 // Check if diff parameter is provided
                 if let Some(ref diff) = params.diff {
                     // When diff is provided, old_str and new_str are not required
@@ -807,6 +853,14 @@ impl DeveloperServer {
                 }
             }
             "insert" => {
+                // Check if in read-only mode
+                if self.readonly {
+                    return Err(ErrorData::new(
+                        ErrorCode::INVALID_PARAMS,
+                        "Command 'insert' is not allowed in read-only mode. Only 'view' is permitted.".to_string(),
+                        None,
+                    ));
+                }
                 let insert_line = params.insert_line.ok_or_else(|| {
                     ErrorData::new(
                         ErrorCode::INVALID_PARAMS,
@@ -827,6 +881,14 @@ impl DeveloperServer {
                 Ok(CallToolResult::success(content))
             }
             "undo_edit" => {
+                // Check if in read-only mode
+                if self.readonly {
+                    return Err(ErrorData::new(
+                        ErrorCode::INVALID_PARAMS,
+                        "Command 'undo_edit' is not allowed in read-only mode. Only 'view' is permitted.".to_string(),
+                        None,
+                    ));
+                }
                 let content = text_editor_undo(&path, &self.file_history).await?;
                 Ok(CallToolResult::success(content))
             }
@@ -856,6 +918,15 @@ impl DeveloperServer {
         params: Parameters<ShellParams>,
         context: RequestContext<RoleServer>,
     ) -> Result<CallToolResult, ErrorData> {
+        // Check if in read-only mode
+        if self.readonly {
+            return Err(ErrorData::new(
+                ErrorCode::INVALID_PARAMS,
+                "shell is not allowed in read-only mode".to_string(),
+                None,
+            ));
+        }
+
         let params = params.0;
         let command = &params.command;
         let peer = context.peer;
@@ -1136,6 +1207,15 @@ impl DeveloperServer {
         &self,
         params: Parameters<ImageProcessorParams>,
     ) -> Result<CallToolResult, ErrorData> {
+        // Check if in read-only mode
+        if self.readonly {
+            return Err(ErrorData::new(
+                ErrorCode::INVALID_PARAMS,
+                "image_processor is not allowed in read-only mode".to_string(),
+                None,
+            ));
+        }
+
         let params = params.0;
         let path_str = &params.path;
 
@@ -3863,4 +3943,359 @@ Additional instructions here.
             cleanup_test_service(running_service, peer);
         });
     }
+
+    // Read-only mode tests
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_initialization() {
+        // Test without environment variable
+        let server = create_test_server();
+        assert!(
+            !server.readonly,
+            "Should not be in read-only mode by default"
+        );
+
+        // Test with environment variable set to "true"
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+        assert!(
+            server.readonly,
+            "Should be in read-only mode when env var is 'true'"
+        );
+        std::env::remove_var("DEVELOPER_READONLY");
+
+        // Test with environment variable set to "1"
+        std::env::set_var("DEVELOPER_READONLY", "1");
+        let server = DeveloperServer::new();
+        assert!(
+            server.readonly,
+            "Should be in read-only mode when env var is '1'"
+        );
+        std::env::remove_var("DEVELOPER_READONLY");
+
+        // Test with environment variable set to "false"
+        std::env::set_var("DEVELOPER_READONLY", "false");
+        let server = DeveloperServer::new();
+        assert!(
+            !server.readonly,
+            "Should not be in read-only mode when env var is 'false'"
+        );
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_text_editor_view_allowed() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        let file_path = temp_dir.path().join("test.txt");
+        std::fs::write(&file_path, "test content").unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        // View should be allowed
+        let view_params = Parameters(TextEditorParams {
+            path: file_path.to_str().unwrap().to_string(),
+            command: "view".to_string(),
+            view_range: None,
+            file_text: None,
+            old_str: None,
+            new_str: None,
+            insert_line: None,
+            diff: None,
+        });
+
+        let result = server.text_editor(view_params).await;
+        assert!(
+            result.is_ok(),
+            "View command should be allowed in read-only mode"
+        );
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_text_editor_write_blocked() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        // Write should be blocked
+        let write_params = Parameters(TextEditorParams {
+            path: "test.txt".to_string(),
+            command: "write".to_string(),
+            view_range: None,
+            file_text: Some("new content".to_string()),
+            old_str: None,
+            new_str: None,
+            insert_line: None,
+            diff: None,
+        });
+
+        let result = server.text_editor(write_params).await;
+        assert!(
+            result.is_err(),
+            "Write command should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_text_editor_str_replace_blocked() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        let file_path = temp_dir.path().join("test.txt");
+        std::fs::write(&file_path, "original content").unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        // str_replace should be blocked
+        let replace_params = Parameters(TextEditorParams {
+            path: file_path.to_str().unwrap().to_string(),
+            command: "str_replace".to_string(),
+            view_range: None,
+            file_text: None,
+            old_str: Some("original".to_string()),
+            new_str: Some("modified".to_string()),
+            insert_line: None,
+            diff: None,
+        });
+
+        let result = server.text_editor(replace_params).await;
+        assert!(
+            result.is_err(),
+            "str_replace command should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_text_editor_insert_blocked() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        let file_path = temp_dir.path().join("test.txt");
+        std::fs::write(&file_path, "line 1\nline 2").unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        // insert should be blocked
+        let insert_params = Parameters(TextEditorParams {
+            path: file_path.to_str().unwrap().to_string(),
+            command: "insert".to_string(),
+            view_range: None,
+            file_text: None,
+            old_str: None,
+            new_str: Some("new line".to_string()),
+            insert_line: Some(1),
+            diff: None,
+        });
+
+        let result = server.text_editor(insert_params).await;
+        assert!(
+            result.is_err(),
+            "insert command should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_text_editor_undo_blocked() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        let file_path = temp_dir.path().join("test.txt");
+        std::fs::write(&file_path, "content").unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        // undo_edit should be blocked
+        let undo_params = Parameters(TextEditorParams {
+            path: file_path.to_str().unwrap().to_string(),
+            command: "undo_edit".to_string(),
+            view_range: None,
+            file_text: None,
+            old_str: None,
+            new_str: None,
+            insert_line: None,
+            diff: None,
+        });
+
+        let result = server.text_editor(undo_params).await;
+        assert!(
+            result.is_err(),
+            "undo_edit command should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[test]
+    #[serial]
+    fn test_readonly_mode_shell_blocked() {
+        run_shell_test(|| async {
+            // Enable read-only mode
+            std::env::set_var("DEVELOPER_READONLY", "true");
+            let server = DeveloperServer::new();
+            let running_service = serve_directly(server.clone(), create_test_transport(), None);
+            let peer = running_service.peer().clone();
+
+            let result = server
+                .shell(
+                    Parameters(ShellParams {
+                        command: "echo 'test'".to_string(),
+                    }),
+                    RequestContext {
+                        ct: Default::default(),
+                        id: NumberOrString::Number(1),
+                        meta: Default::default(),
+                        extensions: Default::default(),
+                        peer: peer.clone(),
+                    },
+                )
+                .await;
+
+            assert!(
+                result.is_err(),
+                "Shell command should be blocked in read-only mode"
+            );
+            let err = result.err().unwrap();
+            assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+            assert!(err.message.contains("not allowed in read-only mode"));
+
+            cleanup_test_service(running_service, peer);
+            std::env::remove_var("DEVELOPER_READONLY");
+        });
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_screen_capture_blocked() {
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        let params = Parameters(ScreenCaptureParams {
+            display: Some(0),
+            window_title: None,
+        });
+
+        let result = server.screen_capture(params).await;
+        assert!(
+            result.is_err(),
+            "screen_capture should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_list_windows_blocked() {
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        let result = server.list_windows().await;
+        assert!(
+            result.is_err(),
+            "list_windows should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_image_processor_blocked() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        let image_path = temp_dir.path().join("test.png");
+        // Create a dummy image file
+        std::fs::write(&image_path, vec![0u8; 100]).unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        let params = Parameters(ImageProcessorParams {
+            path: image_path.to_str().unwrap().to_string(),
+        });
+
+        let result = server.image_processor(params).await;
+        assert!(
+            result.is_err(),
+            "image_processor should be blocked in read-only mode"
+        );
+        let err = result.err().unwrap();
+        assert_eq!(err.code, ErrorCode::INVALID_PARAMS);
+        assert!(err.message.contains("not allowed in read-only mode"));
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_readonly_mode_analyze_allowed() {
+        let temp_dir = tempfile::tempdir().unwrap();
+        let file_path = temp_dir.path().join("test.py");
+        std::fs::write(&file_path, "def main():\n    pass").unwrap();
+        std::env::set_current_dir(&temp_dir).unwrap();
+
+        // Enable read-only mode
+        std::env::set_var("DEVELOPER_READONLY", "true");
+        let server = DeveloperServer::new();
+
+        // analyze should be allowed (it's read-only)
+        let params = Parameters(AnalyzeParams {
+            path: file_path.to_str().unwrap().to_string(),
+            max_depth: 1,
+            follow_depth: 1,
+            focus: None,
+            force: false,
+            ast_recursion_limit: None,
+        });
+
+        let result = server.analyze(params).await;
+        assert!(
+            result.is_ok(),
+            "analyze command should be allowed in read-only mode"
+        );
+
+        std::env::remove_var("DEVELOPER_READONLY");
+    }
 }
diff --git a/goose-self-test.yaml b/goose-self-test.yaml
index a5c8bc4253..33c16bc2fd 100644
--- a/goose-self-test.yaml
+++ b/goose-self-test.yaml
@@ -3,7 +3,7 @@ title: Goose Self-Testing Integration Suite
 description: A comprehensive meta-testing recipe where goose tests its own capabilities using its own tools - true first-person integration testing
 author:
   contact: goose-self-test
-  
+
 activities:
   - Initialize test workspace and logging infrastructure
   - Test file operations (create, read, update, delete, undo)
@@ -22,25 +22,25 @@ parameters:
     requirement: optional
     default: "all"
     description: "Which test phases to run: all, basic, extensions, subagents, recipes, advanced"
-  
+
   - key: test_depth
     input_type: string
     requirement: optional
     default: "standard"
     description: "Testing depth: quick (smoke tests), standard (normal coverage), deep (exhaustive)"
-  
+
   - key: workspace_dir
     input_type: string
     requirement: optional
     default: "./gooseselftest"
     description: "Directory for test artifacts and results"
-  
+
   - key: parallel_tests
     input_type: string
     requirement: optional
     default: "true"
     description: "Run independent tests in parallel where possible"
-  
+
   - key: cleanup_after
     input_type: string
     requirement: optional
@@ -50,36 +50,36 @@ parameters:
 instructions: |
   You are testing yourself - a running goose instance validating its own capabilities through meta-testing.
   This is true first-person integration testing where you use your own tools to test your own functionality.
-  
+
   ## Understanding First-Person Integration Testing
   This is a crucial distinction - as a running goose instance, you are testing yourself using your own capabilities.
-  This is meta-testing in the truest sense: not unit tests or external test harnesses, but you using your tools 
-  to validate your own functionality from within your active session. You can only test what you can observe and 
+  This is meta-testing in the truest sense: not unit tests or external test harnesses, but you using your tools
+  to validate your own functionality from within your active session. You can only test what you can observe and
   control from inside your running instance - your tools, your behaviors, your error handling, your consistency.
-  
+
   ## Core Testing Philosophy
   - You ARE the system under test AND the tester
   - Use your tools to create test scenarios, then validate the results
   - Test both success and failure paths
   - Document everything meticulously
   - Handle errors gracefully - a test failure shouldn't stop the suite
-  
+
   ## Test Execution Framework
-  
+
   ### Phase 1: Environment Setup & Basic Tool Validation
   Create a structured test workspace and validate core developer tools:
   - File operations (CRUD + undo)
   - Shell command execution
   - Code analysis capabilities
   - Error handling and recovery
-  
+
   ### Phase 2: Extension System Testing
   Test dynamic extension management:
   - Discover available extensions
   - Enable/disable extensions
   - Test extension interactions
   - Verify isolation between extensions
-  
+
   ### Phase 3: Subagent Testing (Meta-Recursion)
   Create subagents to test yourself recursively:
   - Basic subagent creation and execution
@@ -87,7 +87,7 @@ instructions: |
   - Sequential subagent chains
   - Recursive depth testing (subagent creating subagent)
   - Test return_last_only optimization
-  
+
   ### Phase 4: Advanced Self-Testing
   Push boundaries and test limits:
   - Intentionally trigger errors
@@ -95,14 +95,14 @@ instructions: |
   - Validate security controls
   - Measure performance metrics
   - Test resource constraints
-  
+
   ### Phase 5: Report Generation
   Compile comprehensive test results:
   - Aggregate all test outcomes
   - Calculate success metrics
   - Document failures and issues
   - Generate recommendations
-  
+
   ## Success Criteria
   - Phase success: ≥80% tests pass
   - Suite success: All phases complete, critical features work
@@ -115,22 +115,22 @@ extensions:
     timeout: 600
     bundled: true
     description: Core tool for file operations, shell commands, and code analysis
-  
+
 prompt: |
   Execute the Goose Self-Testing Integration Suite in {{ workspace_dir }}.
   Test phases: {{ test_phases }}, Depth: {{ test_depth }}, Parallel: {{ parallel_tests }}
-  
+
   ## 🚀 INITIALIZATION
   Create test workspace: {{ workspace_dir }}/ for all test artifacts and reports.
-  
+
   Track your progress using the todo extension. Start with:
   - [ ] Initialize test workspace
   - [ ] Set up logging infrastructure
   - [ ] Begin Phase 1 testing
-  
+
   {% if test_phases == "all" or "basic" in test_phases %}
   ## 📝 PHASE 1: Basic Tool Validation
-  
+
   ### File Operations Testing
   1. Create test files with various content types (.txt, .py, .md, .json)
   2. Test str_replace on each file type
@@ -138,25 +138,25 @@ prompt: |
   4. Test undo functionality
   5. Verify file deletion and recreation
   6. Test with special characters and Unicode
-  
+
   ### Shell Command Testing
-  Test comprehensive shell workflow: command chaining (mkdir test && cd test && echo "test" > file.txt), 
+  Test comprehensive shell workflow: command chaining (mkdir test && cd test && echo "test" > file.txt),
   error handling (false || echo "handled"), and environment variables (export VAR=test && echo $VAR).
   Verify both success and failure paths work correctly.
-  
+
   ### Code Analysis Testing
   1. Create sample code files in Python, JavaScript, and Go
   2. Analyze each file for structure
   3. Test directory-wide analysis
   4. Test symbol focus and call graphs
   5. Verify LOC, function, and class counting
-  
+
   Log results to: {{ workspace_dir }}/phase1_basic_tools.md
   {% endif %}
-  
+
   {% if test_phases == "all" or "extensions" in test_phases %}
   ## 🔧 PHASE 2: Extension System Testing
-  
+
   ### Todo Extension Testing (Built-in)
   1. Create initial todos and verify they persist
   2. Update todos and confirm changes are retained
@@ -167,57 +167,76 @@ prompt: |
   2. Document all available extensions
   3. Test enabling and disabling dynamic extensions (if any available)
   4. Verify extension isolation between enabled extensions
-  
+
+  ### Developer Extension Read-Only Mode Testing
+  Test the DEVELOPER_READONLY environment variable feature by spawning a child goose process:
+
+  1. Create test file: {{ workspace_dir }}/readonly_test.txt with "original content"
+  2. Run read-only test via shell:
+     ```bash
+     DEVELOPER_READONLY=true goose run --text "Try to modify the file at {{ workspace_dir }}/readonly_test.txt by replacing 'original' with 'modified'. Then try to view the file. Report if the modification was blocked as expected." --no-session --quiet
+     ```
+  3. Verify file remains unchanged (still contains "original content")
+  4. Test that view operations work:
+     ```bash
+     DEVELOPER_READONLY=true goose run --text "View the file at {{ workspace_dir }}/readonly_test.txt and report its contents." --no-session --quiet
+     ```
+  5. Document results: readonly mode should block write/modify but allow view
+
+  Why this approach: Read-only mode is a startup configuration controlled by environment variable.
+  Since it's read at server initialization, we test it by spawning a child goose process with the env var set.
+  This provides true end-to-end validation without requiring extension reload gymnastics.
+
   Log results to: {{ workspace_dir }}/phase2_extensions.md
   {% endif %}
-  
+
   {% if test_phases == "all" or "subagents" in test_phases %}
   ## 🤖 PHASE 3: Subagent Meta-Testing
-  
+
   ### Basic Subagent Test
   Create a simple subagent task:
   ```
   Task: "Create a file called subagent_test.txt with 'Hello from subagent'"
   ```
-  
+
   ### Parallel Subagent Test
   {% if parallel_tests == "true" %}
   Create 3 parallel subagents:
   1. Count files in current directory
   2. Get current timestamp
   3. Create a test file
-  
+
   Use execution_mode: "parallel" and verify all complete.
   {% endif %}
-  
+
   ### Sequential Chain Test
   Create dependent subagents:
   1. First: Create a Python file
   2. Second: Analyze the created file
   3. Third: Run the Python file
-  
+
   ### Recursive Depth Test (if test_depth == "deep")
   {% if test_depth == "deep" %}
   Create a subagent that creates another subagent (test depth limit).
   Monitor for resource constraints and context window limits.
   {% endif %}
-  
+
   ### Return Last Only Test
   Create subagents with return_last_only=true and verify condensed output.
-  
+
   Log results to: {{ workspace_dir }}/phase3_subagents.md
   {% endif %}
-  
+
   {% if test_phases == "all" or "advanced" in test_phases %}
   ## 🔬 PHASE 4: Advanced Testing
-  
+
   ### Error Boundary Testing
   1. Create a file with an invalid path (should fail gracefully)
   2. Run a non-existent shell command
   3. Try to analyze a binary file
   4. Test with extremely long filenames
   5. Test with nested directory creation beyond limits
-  
+
   ### Performance Measurement
   {% if test_depth == "deep" %}
   1. Create and analyze a large file (>1MB)
@@ -225,68 +244,68 @@ prompt: |
   3. Track execution times for each operation
   4. Monitor token usage if accessible
   {% endif %}
-  
+
   ### Security Validation
   1. Test input with special shell characters: $(echo test)
   2. Attempt directory traversal: ../../../etc/passwd
   3. Test with harmful Unicode characters
   4. Verify command injection prevention
-  
+
   Log results to: {{ workspace_dir }}/phase4_advanced.md
   {% endif %}
-  
+
   ## 📊 PHASE 5: Final Report Generation
-  
+
   Create TWO reports:
-  
+
   ### 1. Detailed Report at {{ workspace_dir }}/detailed_report.md
   Include all test details, logs, and technical information.
-  
+
   ### 2. Executive Summary (REQUIRED - Display in Terminal)
-  
+
   **IMPORTANT**: At the very end, generate and display a concise summary directly in the terminal:
-  
+
   ```
   ========================================
   GOOSE SELF-TEST SUMMARY
   ========================================
-  
+
   ✅ OVERALL RESULT: [PASS/FAIL]
-  
+
   📊 Quick Stats:
   • Tests Run: [X]
-  • Passed: [X] ([%])  
+  • Passed: [X] ([%])
   • Failed: [X] ([%])
   • Duration: [X minutes]
-  
+
   ✅ Working Features:
   • File operations: [✓/✗]
   • Shell commands: [✓/✗]
   • Code analysis: [✓/✗]
   • Extensions: [✓/✗]
   • Subagents: [✓/✗]
-  
+
   ⚠️ Issues Found:
   • [Issue 1 - brief description]
   • [Issue 2 - brief description]
-  
+
   💡 Key Insights:
   • [Most important finding]
   • [Performance observation]
   • [Recommendation]
-  
+
   📁 Full report: {{ workspace_dir }}/detailed_report.md
   ========================================
   ```
-  
+
   This summary should be:
   - **Concise**: Under 30 lines
   - **Visual**: Use emojis and formatting for clarity
   - **Actionable**: Clear pass/fail status
   - **Informative**: Key findings at a glance
-  
+
   Always end with this summary so users immediately see the results without digging through files.
-  
+
   {% if cleanup_after == "true" %}
   ## 🧹 CLEANUP
   After report generation:
@@ -294,16 +313,16 @@ prompt: |
   2. Remove temporary test artifacts
   3. Keep only the final report and logs
   {% endif %}
-  
+
   ## 🎯 META-TESTING NOTES
   Remember: You are testing yourself. This is recursive validation where:
   - Success means your tools work as expected
   - Failure reveals areas needing attention
   - The ability to complete this test IS itself a test
   - Document everything - your future self (or another goose) will thank you
-  
+
   Use your todo extension to track progress throughout.
   Handle errors gracefully - a failed test shouldn't crash the suite.
   Be thorough but efficient based on the test_depth parameter.
-  
+
   This is true first-person integration testing. Execute with precision and document with clarity.