Five tools with clear verb-noun naming (get_*, compare_*) and present descriptions. However, descriptions are terse (avg 95 chars, below 194-char baseline), lack WHEN/WHY context, and omit output schema documentation. Parameter descriptions exist but are minimal. No error recovery guidance. Tools return JSON strings rather than structured objects, forcing LLM parsing. No pagination support despite tools returning potentially large datasets (e.g., options chains, news). Missing idempotency and confirmation patterns for data-heavy operations.

• Document output schemas for all tools. For get_options_chain, specify: {ticker, expiration, calls: [{strike, last, bid, ask, iv, oi, volume, itm}], puts: [...]}, with field descriptions (e.g., 'oi: open interest in contracts').
• Expand descriptions to 150 - 250 chars. Add WHEN/WHY: 'Call get_history to analyze price trends over time. Use period=1y for annual returns, interval=1d for daily bars. Returns OHLCV data; useful before calling compare_tickers.'
• Add pagination: accept limit (default 20, max 100) and offset parameters. Return total_count and next_offset. Cap get_news to 20 items by default, get_options_chain to 30 calls/puts.
• Implement error recovery: return structured errors with actionable guidance. E.g., {error: 'Invalid ticker INVALID_SYMBOL', suggestion: 'Check ticker spelling or call with a valid symbol like AAPL'}.
• Change get_options_chain expiration parameter: remove default=null, make it optional (no default), and document: 'If omitted, returns available_expirations list. Call again with a specific date to fetch the chain.'