14 tools with complete JSON schemas and descriptions, but quality is uneven. All tools are READ_ONLY and follow verb_noun naming (get_*, search_*). Descriptions average ~80 chars, below the 194-char baseline for A+ tools. Parameters have types but many lack depth, e.g., 'as_of' appears in 13 tools with identical minimal description. No output schemas documented. Error handling and recovery guidance absent. Tool composition is sound (each does one thing), but descriptions don't explain WHEN to use each tool vs. similar ones (e.g., a_share_get_snapshot vs. a_share_get_capital_snapshot). No tool annotations (readOnlyHint, idempotentHint) despite all being read-only.

• Add output schemas for all 14 tools. Document the structure of returned objects, field types, and which fields are guaranteed vs. optional. Example: 'Returns {snapshot: {price: number, volume: integer, timestamp: string}, fundamentals: {pe_ratio: number, ...}}'.
• Expand tool descriptions to 100 - 200 chars with explicit WHEN-to-use guidance. Example: 'Get real-time market snapshot (price, volume, bid/ask). Use this for current quotes; use a_share_get_bars for historical price series.'
• Add readOnlyHint: true and idempotentHint: true annotations to all tools so agents know they are safe to retry without side effects.
• Document error cases and recovery paths. Example: 'If instrument_id not found, try search_instruments() with a partial name. If as_of is in the future, use current timestamp.'
• Add min/max constraints to numeric parameters (e.g., lookback_months: 1 - 120, limit: 1 - 1000) and document defaults in descriptions.