Single tool 'sample_read' has critical definition gaps. Input schema is empty object with no parameters documented. Description is present (47 chars) but minimal and lacks context on when/why to use it. No output schema visible in source. Tool appears to be a read-only sample with no error handling guidance. No parameter descriptions, no constraints, no recovery paths. Naming is acceptable (verb_noun form) but definition quality is far below production baseline.

• Expand description to 100 - 150 characters: 'Reads all walls from the active Revit document and returns their element IDs, types, and wall names. Call this to discover available walls before filtering or modifying them.'
• Document output schema explicitly: return type should be object with properties like 'walls' (array of {id, type, name}), 'total_count' (number), and 'status' (string).
• Add error handling: document what happens if no Revit document is open, if the document has no walls, or if the Revit API call times out. Provide recovery guidance for each case.
• Add tool annotations to the MCP tool definition: set readOnlyHint=true and idempotentHint=true to signal to clients that this tool is safe to call repeatedly.
• If parameters are needed in future (e.g., filter by wall type), define them now with enum constraints and descriptions rather than leaving the schema empty.