Single tool with minimal definition quality. Tool name 'tool_get_forecast' violates verb_noun convention (should be 'get_forecast'). Description is adequate (44 chars, within 10-1024 range) but lacks context on when to use it or what it returns. Input schema present with proper types (float) and basic descriptions for latitude/longitude, but output schema is completely undocumented, LLMs cannot plan downstream operations. No error handling guidance, no pagination support, no mention of rate limits or API dependencies. Naming prefix 'tool_' is redundant and non-standard. Overall follows ~30% of applicable patterns.

• Rename 'tool_get_forecast' to 'get_forecast' to follow verb_noun convention and match LLM expectations for action-first naming.
• Document the complete output schema in the tool description or as a separate schema field. Example: 'Returns: {temperature: number (°C), conditions: string, timestamp: ISO8601, confidence: 0-100}'. This enables LLMs to extract and chain results.
• Add constraint details to parameter descriptions: 'Latitude (required, range: -90 to 90, decimal degrees)' and 'Longitude (required, range: -180 to 180, decimal degrees)'.
• Extend the tool description to include error cases and recovery guidance: 'If coordinates are outside supported regions, returns error with nearest available location. If service is unavailable, retry after 30 seconds.'
• Add a 'units' parameter (enum: celsius|fahrenheit|kelvin) to make the tool more flexible and self-documenting. Document whether the tool supports historical forecasts or only current/future predictions.