Three tools with clear, actionable descriptions (avg 156 chars) and well-defined input schemas. Naming follows verb_noun convention (analyze_repo, get_routes, find_api_callers). However, output schemas are not documented, LLMs cannot predict return structure. Parameters lack descriptions in schema (only present in tool description text). No error handling guidance or recovery paths. Missing tool annotations (readOnlyHint). Composition is sound: each tool has one responsibility and tools chain naturally (analyze_repo → get_routes → find_api_callers).

• Add explicit output schema to each tool. E.g., analyze_repo returns {modules: {[path]: {imports: string[], exports: string[]}}, edges: [{from: string, to: string}], routes: [{framework, method, path, file, line}]}. Document field types and meanings.
• Move parameter descriptions into the schema definition. Each parameter (path, format, route) must have a 'description' field in the input schema, not just in the tool docstring.
• Add error handling examples. Document what happens if path is invalid, route not found, or parsing fails. Provide recovery guidance: 'If route not found, call get_routes() to list available routes.'
• Declare tool annotations. Add readOnlyHint: true and idempotentHint: true to all three tools so agents know they are safe to retry and do not modify state.
• Document result limits and pagination. State max file count, max routes returned, and whether results are truncated. If large repos exceed limits, offer pagination or filtering parameters.