TraceRAG defines 2 tools with clear, well-written descriptions (194 - 250 chars each, within baseline 34 - 392 range). Both tools have explicit input schemas with typed parameters and descriptions. Naming follows verb_noun convention (search_procedures, get_procedure). However, output schemas are not documented in the visible code, return types are inferred from type hints (list[RetrievedChunk], ProcedureDocument|None) but no structured schema is exposed to the MCP client. Error handling is minimal: no guidance on what happens when a search returns empty, when a document_id is invalid, or how to recover. No parameter constraints (enums, ranges) are declared. The tools are read-only and well-scoped, but lack the production-grade error recovery and output documentation expected of A-grade tools.

• Document output schemas explicitly. For search_procedures, expose the structure of RetrievedChunk (document_id, title, section, content, overlap_score). For get_procedure, document ProcedureDocument fields (id, title, metadata, content). Include these in tool descriptions or as a separate schema reference.
• Add parameter constraints. Declare limit as an integer with min=1, max=50 (or appropriate cap). Add format hints for query and document_id (e.g., 'document_id must match pattern SOP-\d{3}').
• Enhance error descriptions. Update search_procedures description to: 'Returns at most `limit` scored chunks. If no matches found, returns empty list, try broader search terms or call get_procedure with a known document_id.' Update get_procedure to: 'Returns the document or None if unknown. If None, call search_procedures to discover valid document IDs.'
• Add tool annotations. Declare both tools with readOnlyHint=true and idempotentHint=true in the FastMCP schema to signal safety to LLM clients.
• Verify response chaining. Ensure search_procedures returns document_id in each chunk so the LLM can immediately call get_procedure without a lookup. Confirm ProcedureDocument includes all fields needed by downstream agent logic.