Single tool 'report_market_issue' has a well-structured description (180 chars) explaining when to call it and what to avoid. Input schema is present with 4 parameters (title, description, expected, actual), all with type strings and descriptions. However, parameters lack constraints (no enums, min/max, patterns), and the schema is minimal, no required field declarations visible. The tool is READ_ONLY (feedback only), which is appropriate, but the schema completeness falls short of production baseline (94% of A+ tools have fully constrained params). Output schema is not documented, callers don't know what fields to expect in the response (issueText, location mentioned in description but not in formal schema). No error handling guidance for when issue filing fails.

• Add formal output schema documenting response fields: issueText (string, optional), location (string, URL), success (boolean), error (string, optional). Include examples.
• Add constraints to input parameters: title (min 10, max 200 chars), description (min 20, max 2000 chars), expected and actual (max 2000 chars each). Mark title and description as required.
• Add error handling guidance to description: 'If filing fails, the response will include issueText with the unsent issue content and a location link. Show these to the user so they can submit manually on GitHub.'
• Consider adding a 'severity' enum parameter (low|medium|high|critical) to help triage issues in the market repository.
• Migrate from STDIO to Streamable HTTP transport to enable remote accessibility and hosted client compatibility.