FinamMCP presents a mixed quality picture. The server has 17 tools across 4 domains (account, assets, market_data, order) with reasonable naming conventions (all start with action verbs like get_, place_, cancel_). However, significant gaps exist in parameter descriptions and output schema documentation. Most tools have descriptions in Russian (10-200 chars range, within baseline), but parameter documentation is inconsistent. Critical issue: The 'place_order' tool accepts an 'order' parameter with only vague description ('Order object containing symbol, quantity, side, type, and optional parameters'), no formal schema visible for the nested object structure. Output schemas are not documented anywhere in the codebase provided. Error handling is not evident. The server supports HTTP transport (good) and uses fastmcp framework, but lacks modern MCP features like tool annotations, error reporting, and structured logging.

• Add formal JSON Schema definitions for the 'order' parameter in place_order. Document required fields (symbol, quantity, side, type) and optional fields (price, stop_price, time_in_force, etc.) with types and constraints.
• Document output schemas for all tools. For list-returning tools (get_transactions, get_assets, get_bars), specify the structure of each item, total count, and pagination metadata.
• Provide English translations or dual-language descriptions for all tools. Baseline production tools average 194 chars in English; current Russian descriptions are usable but limit LLM understanding.
• Add enum constraints to get_bars 'timeframe' parameter. Define allowed values: '1m', '5m', '10m', '15m', '30m', '1h', '4h', '1d', '1w', '1M'.
• Implement tool annotations. Use fastmcp's annotation capabilities to mark place_order with @destructive and cancel_order with @reversible + @idempotent.
• Enhance place_order description to document: (1) what happens on success, (2) common failure modes (invalid symbol, insufficient margin, market closed), (3) recovery steps. Example: 'Places a limit or market order. Returns order_id on success. Returns error if symbol invalid or market closed, call get_schedule() to check trading hours.'
• Add a validate_order or simulate_order tool that accepts the same parameters as place_order but returns a dry-run result without execution. Allows agents to preview before committing.
• Document pagination for list tools. Specify: 'Returns up to [limit] most recent items. To fetch older items, use offset=[count] in a subsequent call.' Include total_count in responses.