Server has 9 tools with basic descriptions and input schemas, but significant quality gaps. All tools have descriptions (good), but most are under 100 chars and lack actionable context. Input schemas present but incomplete: many parameters lack type constraints (e.g., 'status' in get_orders accepts free-form strings instead of enum). No output schemas documented. Error handling is minimal, most tools return raw exception strings rather than recovery guidance. No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite clear risk levels. Parameter descriptions are generic ('Stock ticker symbol') without format constraints or examples of valid values. Tools like place_market_order and close_all_positions are high-risk but lack confirmation/dry-run patterns. No pagination support despite tools returning lists. Naming is clear (verb_noun pattern), but composition could be tighter, place_market_order and place_limit_order could share a unified order interface.

• Convert all tool responses from free-text strings to structured JSON objects with typed fields. E.g., get_account_info should return {account_id: string, status: string, buying_power: number, cash: number, ...} instead of formatted text.
• Add enum constraints to parameters: status in get_orders should be enum ['open', 'closed', 'all']; side in place_market_order should be enum ['buy', 'sell']. Document in parameter descriptions.
• Implement confirmation/dry-run pattern for destructive tools. Add optional 'dry_run: boolean' parameter to place_market_order, place_limit_order, cancel_all_orders, close_all_positions. Return what would happen without executing.
• Replace raw exception strings with actionable error messages. E.g., 'Invalid symbol: INVALID. Verify ticker is listed on NYSE/NASDAQ.' or 'API rate limit exceeded. Retry in 60 seconds.' Include recovery guidance.
• Add tool annotations via FastMCP: mark get_* tools with readOnlyHint=true; mark place_*, cancel_*, close_* with destructiveHint=true; mark idempotent operations with idempotentHint=true.