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• Add explicit output schemas to ALL tools. E.g., calculator_add_function should document: returns {"result": number, "inputs": {"a": number, "b": number}}. LLMs need to know field names and types to chain tools.
• Expand descriptions to 50 - 200 characters for each tool, following the baseline (p10=34, p90=392). Example: 'Add two numbers using function macro (Level 1)' → 'Add two numbers using a Rust function macro. Demonstrates Level 1 of the tool creation pattern. Accepts two numeric inputs and returns their sum.'
• Add parameter descriptions for all inputs. E.g., for search_profiles: query='Search keyword (supports partial matches and wildcards)', limit='Maximum number of results to return (1-100, default 20)'.
• Rename ambiguous/generic tools: dynamic_slow_op → simulate_slow_operation, benchmark_compute → measure_compute_time, benchmark_cpu → measure_cpu_performance. Use verb_noun naming to make intent clear.
• For batch_process, dynamic_slow_op, and benchmark_session (WRITE tools), explicitly state side effects in descriptions. E.g., 'batch_process: Process a batch of items WITH SIDE EFFECTS (items are marked as processed and cannot be re-run).'
• Remove or resolve the elicitation capability mismatch in personalized_greeting. Either (a) implement MCP elicitation protocol (set elicitation=true and register proper elicitation handlers), or (b) change the tool to accept user details as parameters and mark it as a simple READ_ONLY computation.
• Add validation and error guidance to tool descriptions. E.g., for search_profiles: 'If query is empty, all profiles are returned. If limit exceeds 100, it is capped at 100.'