22 tools with mixed quality. Most have descriptions (good), but many lack complete input schemas or have vague parameter documentation. Tool names follow verb_noun convention well (context, read_symbol, list_file_symbols, understand, impact, detect_changes, trace_call_path, search_code, assemble_context, compare_symbols, find_routes, trace_route, compare_routes, checkpoint_context, read_delta, retrieve_output, discover_tools, execute_tool, health). However, several tools (detect_changes, get_architecture_summary, get_key_symbols, explore, discover_tools, health) have NO visible input schema in the source code provided. Parameters that ARE documented (e.g., in context, read_symbol, list_file_symbols) show good type coverage and descriptions. Error handling and output schemas are not documented in the visible code. Security concerns: execute_tool accepts arbitrary tool_name and arguments, which could enable privilege escalation or unintended side effects if not properly gated.

• Add complete input schemas to detect_changes, get_architecture_summary, explore, checkpoint_context, read_delta, retrieve_output, discover_tools, and health. Each must declare parameter types, descriptions, and constraints.
• Document output schemas for all 22 tools. Specify field names, types, and which fields are required for chaining (e.g., symbol_id, file_path, route). Include pagination info (limit, offset, total_count) for list-returning tools.
• Expand descriptions for understand, detect_changes, get_architecture_summary, explore, checkpoint_context, read_delta, retrieve_output, discover_tools, and health to 50-200 characters. Answer: What does it do? When should the LLM call it? What does it return?
• Add error handling guidance to all tools. Document which errors are retryable (e.g., 'Symbol not found. Try search_code() with a broader pattern.'), which are user-fixable (e.g., 'Invalid regex pattern: missing closing bracket'), and which are fatal.
• Gate execute_tool behind permission checks and document which tools it can invoke. Validate tool_name against a whitelist and validate arguments against the target tool's schema before execution. Return clear errors if validation fails.