This server exhibits critical definition quality gaps across all tools. No tool has a complete input schema visible in the provided source code. Only 2 of 4 tools have descriptions (createDocument, updateDocument, requestSuggestions), and getWeather has no description at all. Tools are defined in app/api/chat/route.ts but the actual tool registration code and schemas are not shown. Parameter descriptions exist for 2 tools (createDocument, updateDocument) but are generic and lack actionable constraints. No output schemas are documented. Error handling patterns are absent. The naming is inconsistent, getWeather uses camelCase (non-standard verb_noun), while others use mixed patterns. No tool annotations, permission declarations, or audit trail guidance visible.

• Add explicit input schemas with JSON Schema types and constraints to every tool. For getWeather, specify required params (location, unit), return type (temperature, humidity, forecast). For createDocument, add maxLength for title, explain document format expectations.
• Write full tool descriptions (50 - 200 chars each): 'getWeather: Fetch current weather and forecast for a location. Returns temperature in C/F, humidity, wind, and 5-day forecast. Use when user asks about weather.'
• Add output schema documentation (in tool description or a separate response_schema field). E.g., createDocument returns {id, title, kind, content, created_at}. updateDocument returns {id, modified_at, change_summary}.
• Rename tools to verb_object_noun convention: get_weather, create_document, update_document, request_suggestions (or get_suggestions).
• Add actionable error guidance to descriptions: 'createDocument fails if title is empty or kind is invalid (must be text|code|image|sheet). Retry with a valid kind.'
• Document the 'title' parameter in createDocument more explicitly: 'A short title (max 100 chars) that becomes the document name and guides AI content generation. E.g., 'Python web scraper', 'Budget Q4 2024 spreadsheet'.'
• For updateDocument, clarify the 'description' parameter: 'Natural-language description of desired changes. E.g., "Add error handling to the Python code", "Increase font size to 14pt". LLM interprets this and applies edits.'
• Add tool annotations: mark createDocument and updateDocument with destructiveHint=true, mark all tools with readOnlyHint where applicable (getWeather, requestSuggestions are read-only).