The server defines 4 tools with explicit names, descriptions, and JSON Schema input definitions. All tool names follow verb_noun convention (get_*, query_*), descriptions are present and reasonably detailed (100-300+ chars each), and all parameters have type constraints and descriptions. However, there are notable gaps: (1) enum descriptions are excessively long and repetitive (category parameter descriptions repeat the full enum list 4 times across 4 tools, totaling 1000+ chars per tool), (2) output schemas are not documented, the source code returns text-wrapped responses but does not specify what that text contains or its structure, (3) error handling is basic (generic try/catch), and (4) no tool annotations (readOnlyHint, destructiveHint) despite read-only classification in metadata. Tools are well-scoped and composable, but output documentation is a significant gap for agent planning.

• Document output schemas for all 4 tools. Specify what fields are in the returned text, expected format (JSON? markdown? plain text?), and example structure. This enables agents to parse and chain results.
• Replace repetitive category enum descriptions with a single shared definition or reference. Consider: move the enum to a reusable component or shorten descriptions to 'Design category to filter by (e.g., website, gamedev, 3d)' with enum constraint doing the work.
• Add tool annotations: set `readOnlyHint: true` on get_best_design_model and get_leaderboard; set `idempotentHint: true` on all read-only tools to signal safety.
• Enhance error handling: wrap errors with recovery guidance. E.g., 'OpenRouter API returned 401: missing or invalid OPENROUTER_API_KEY. Set the environment variable and retry.' For 404 model not found, suggest 'Call get_leaderboard to see available models.'
• Add explicit descriptions of what happens on edge cases. E.g., 'If category has no models on OpenRouter, falls back to allcategories category.' or 'If max_tokens exceeds model limit, request is truncated.'
• Consider adding a pagination note to get_leaderboard: 'Returns a page of results. Use limit and offset parameters to browse large leaderboards efficiently.'