Stacktale MCP provides 7 read-only tools for error report inspection. Tool naming follows verb_noun convention (list_errors, get_report, culprit_source). However, critical gaps undermine quality: (1) Input schemas are visible only for tools 1-3 and 6-7; tools 4-5 show empty input {} with no schema detail visible in source. (2) Descriptions are present but minimal (10-50 chars), below the 50-200 char baseline for LLM optimization. (3) No output schemas documented, LLMs cannot predict response structure. (4) No error handling guidance, tools fail silently without recovery hints. (5) Parameter descriptions lack format/constraint details. (6) Tool 4 and 5 appear inferred from shell scripts rather than explicit Java registration, capping their scores at 50. Overall, this is a functional but under-documented server typical of community tools.

• Document output schemas for all 7 tools. Specify what fields each returns (e.g., list_errors returns [{id, timestamp, message, stackTrace}, ...], get_report returns {id, fullReport, metadata}).
• Expand descriptions to 80-150 chars. Include WHEN to use (e.g., 'Call after an error occurs to retrieve the full stack trace and reproduction context'), WHAT it returns, and any prerequisites.
• Add min/max constraints to numeric parameters. E.g., 'limit: integer, 1-100, default 20' prevents LLMs from requesting 10000 errors.
• Add error recovery guidance. E.g., 'If error ID not found, call list_errors() to discover available IDs' or 'Returns empty list if no errors since last check, this is normal.'
• Consolidate tools 3 and 4 (errors_since / errors_since_last_check), they appear to do the same thing. Use one canonical name and document state-tracking behavior clearly.