26 tools with consistent naming (verb_noun pattern) and complete input schemas. Descriptions are present but generic (avg ~80 chars, below 194-char baseline). All tools are READ_ONLY with no state-modifying operations. Output schemas are not documented in source, only input schemas visible. Parameter descriptions are minimal; many lack context on expected formats or constraints. No error handling guidance or recovery paths documented. Composition is sound (single responsibility per tool), but descriptions lack LLM-optimization for tool selection.

• Document output schemas for all 26 tools. Specify field names, types (string, number, date, object, array), and which fields are always present vs. optional. Example: 'Returns {symbol: string, price: number, change: number, changePercent: number, timestamp: ISO8601}'.
• Expand tool descriptions to 100-200 chars with explicit WHEN guidance. Example: 'Get real-time stock quote. Use this to check current price and daily change. For historical prices, call get_historical_chart instead. Returns price, change, and market status.'
• Add error handling guidance to each tool description. Example: 'If symbol not found, try search_symbol() first. If API rate limit hit, retry after 60 seconds. Returns error code and message on failure.'
• Add min/max constraints to numeric parameters. Example: 'limit: number (1-100, default 10)' and 'period: number (1-365 days)'. Add format validation to date parameters: 'from: string (ISO 8601 date, e.g. 2024-01-15, optional)'.
• Document pagination and result limits. Example: 'Returns up to 100 results by default. Use limit parameter to adjust (max 500). For more results, implement pagination via offset or cursor if supported by the API.'