Server has 5 tools with basic schemas and descriptions, but significant gaps limit production readiness. Tool names follow verb_noun convention (buy_asset, sell_asset, get_portfolio, asset_position, get_transaction_history), which is good. However, descriptions are inconsistent in quality and length. buy_asset has a solid 34-char description; sell_asset is only 11 chars ('Sell Asset'), falling below the 20-char minimum. Parameter descriptions exist but are minimal (e.g., 'Ticker symbol of the asset to buy' repeated across tools). No output schemas documented. Error handling and recovery guidance absent. No tool annotations (readOnlyHint/destructiveHint) despite clear READ_ONLY vs WRITE risk classifications. Schemas are present and properly typed (object with required/properties), meeting baseline structure, but lack constraints (enums, ranges, patterns) that would prevent LLM hallucination.

• Expand sell_asset description to 50-100 chars: 'Sell a specified quantity of an investment asset from your portfolio. Requires valid ticker and positive quantity.'
• Document output schemas for all tools. Example for get_portfolio: {type: 'object', properties: {portfolio_id: {type: 'string'}, assets: {type: 'array', items: {type: 'object', properties: {ticker: {type: 'string'}, quantity: {type: 'number'}, average_price: {type: 'number'}}}, total_value: {type: 'number'}}}
• Add tool annotations via Spring AI MCP framework: @Tool(name='buy_asset', description='...', hints={destructiveHint: true}) and @Tool(name='get_portfolio', hints={readOnlyHint: true})
• Add parameter constraints: quantity must be positive (minimum: 0.01), ticker must match pattern ^[A-Z]{1,5}$ (or enum of valid tickers), dates must be ISO 8601 format
• Add error recovery guidance: 'If buy_asset fails with "insufficient_funds", call get_portfolio to check available balance. If ticker is invalid, search available_assets first.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry