Two tools are registered with schemas and descriptions. Both tool names follow verb_noun convention (get_stores, search_products). Descriptions are present and moderately detailed (102-180 chars, within baseline range). Input schemas use proper JSON Schema with type definitions and constraints. However, output schemas are not documented in the source code provided, which is a critical gap. Parameter descriptions are present and reasonably detailed. The tools demonstrate good parameter constraint use (enums, min/max values), but lack error handling guidance and do not declare output structure or field mappings for downstream tool chaining. No tool annotations (readOnlyHint/destructiveHint/idempotentHint) are present.

• Document the output schema for both tools. For get_stores, specify: returns an array of {storeId: string, chain: enum, city: string, name: string, ...}. For search_products, specify: {products: [{id: string, name: string, price: number, ...}], total: number, ...}. Include which fields are required for downstream tool calls (e.g., storeId for search_products).
• Add tool annotations to both tool definitions: set readOnlyHint: true to declare that both tools are safe to call without side effects.
• Enhance error handling in descriptions: 'If no stores are found for a city, available cities are: Helsinki, Tampere, Turku...' and 'If search returns no products, try a broader search term or check if the storeId is valid.'
• Clarify the storeId chaining: 'The storeId returned by get_stores can be passed directly to search_products for k-ruoka and s-kaupat; for alko, storeId is optional and filters results.'
• Add a note to search_products explaining the limit cap: 'Results are capped at 50 per API rate limits; use pagination if available or refine the search query to get more relevant results.'
• Consider adding a batch variant or pagination tokens if the API supports them, to enable agents to retrieve large result sets without multiple sequential calls.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry