The server defines 6 tools for Google Places / location services. Naming follows verb_noun conventions consistently (search_places, get_place_details, get_weather, get_elevation, geocode_address, get_directions). However, critical gaps exist: tool descriptions are present but brief and lack dependency hints or prerequisite guidance. More critically, parameter descriptions are incomplete or missing in many cases, and output schemas are NOT documented anywhere in the provided code. The schema provided for tool inputs is well-formed with proper JSON Schema types and required fields, but there is no documentation of what each tool returns. Error handling is minimal, the code catches generic errors and wraps them in McpError, but does not provide recovery guidance or categorize errors (retryable vs user-fixable). The tool composition is sound (each tool has one job), and naming is clear, but the lack of output documentation and weak error messages are significant gaps for production use.

• Document the output schema for each tool in the ListToolsRequestSchema response. For example, search_places should document that it returns { places: [ { name, displayName, formattedAddress, place_id, location: { lat, lng }, types, rating, userRatingCount, businessStatus } ] }. This enables LLMs to know what fields to extract and plan follow-up calls.
• Enhance error messages with recovery guidance. E.g., if place_id is invalid, respond with 'Place ID not found. Try search_places() to find the correct place_id.' If API key is missing, respond with 'API key error: set GOOGLE_PLACES_API_KEY environment variable.'
• Add dependency hints to tool descriptions. Update get_place_details to say: 'Requires a place_id from search_places or geocode_address. Returns details like address, phone, website, rating, opening hours.' Update get_weather to say: 'Requires lat/lng coordinates. Use geocode_address() if you only have an address.'
• Clarify parameter formats and constraints. Add to place_id description: 'Google Place ID from search_places results (e.g., ChIJIQBpAG2ahYAR_6128GltTXQ).' For departure_time, clarify: 'Unix timestamp in seconds (e.g., 1640000000) or the string "now" for current conditions.'
• Distinguish between tools that do similar things. Expand search_places description to: 'Search for places by text query (e.g., "Starbucks near Seattle"). For address-to-coordinates lookup, use geocode_address(). For detailed info about a known place, use get_place_details().'
• Implement per-item error handling. If get_elevation receives multiple locations and one fails, return the successful elevations with a note like { elevations: [...], failed: [{ location, error: 'coordinates out of range' }] } instead of failing entirely.

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

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