Server has 4 tools with basic schemas and descriptions, but significant quality gaps. Tool names lack clear action verbs (getAllRecipes, getRecipesByCategory are acceptable but generic). Descriptions are present but minimal (10-80 chars, below the 50-200 char LLM-optimized baseline). Critical issue: getRecipesByCategory has an empty enum array despite claiming to constrain category values, this defeats the purpose of enum validation. Parameters lack depth: no min/max constraints on peopleCount (1-10 declared but not enforced in schema), no guidance on expected output structure. Error handling is absent, no recovery guidance if recipes fail to load or API calls timeout. Output schemas are undocumented; LLMs cannot predict response structure. Tool composition is reasonable (single responsibility), but parameter descriptions are sparse and lack actionable format guidance.

• Populate getRecipesByCategory enum dynamically at registration time: z.enum(categories as [string, ...string[]]) is correct, but verify categories array is non-empty before server starts. Add a startup check: if (categories.length === 0) { console.error('No categories found'); process.exit(1); }
• Document output schemas for all tools. Add a comment above each tool registration showing the expected response structure, e.g., '// Returns: { content: [{ type: "text", text: JSON.stringify([{name, description, ingredients}]) }] }'
• Expand tool descriptions to 80-150 chars. Example: 'Get all recipes in the database. Returns a list of recipe names and descriptions. Use this to discover available recipes before filtering by category or requesting recommendations.'
• Add error handling in tool handlers. Wrap async operations in try-catch and return structured error responses: { content: [{ type: "text", text: JSON.stringify({ error: "Recipe database unavailable. Please try again in 30 seconds." }) }] }
• Remove 'no_param' from getAllRecipes. Change schema to {} (empty object) and update Zod to z.object({}) to signal zero parameters. Update description to 'Retrieve all available recipes without filters.'