Analyze code/files quickly using Gemini's large context window. Preferred when questions mention specific files or require reading repository code. Example: {prompt: 'Explain @src/auth.ts security approach', focus: 'security', responseStyle: 'concise'}

Perform comprehensive codebase analysis across multiple files with deep reasoning. Preferred for complex architectural questions or multi-file investigation. Example: {prompt: 'Trace authentication flow from @src/routes to @src/middleware', focus: 'architecture', citationMode: 'paths_only'}

Map repository structure and understand what each file/module does. Preferred when questions ask about project organization or 'what's in this directory'. Example: {path: './src', depth: 3, maxFiles: 100}

Verify file paths exist and are accessible before analysis. Use when uncertain about path correctness or troubleshooting 'PATH_NOT_ALLOWED' errors. Example: {paths: ['src/auth.ts', 'config/database.js', '../README.md']}

Verify server status and Gemini CLI configuration. Use for troubleshooting connection issues or confirming setup. Example: {includeDiagnostics: true}

Retrieve continuation of a large response. Use when a previous tool response included 'chunks' metadata indicating more content available. Example: {cacheKey: 'cache_abc123', chunkIndex: 2}