Single tool with adequate naming (verb_noun pattern) and clear description (127 chars, within baseline 34-392). However, input schema is minimal, only 'address' parameter with basic string type and description. No output schema documented. No error handling guidance, no parameter constraints (e.g., address format validation, length limits), no pagination support despite potentially returning large portfolio data. Missing descriptions for return structure. Tool is READ_ONLY (good), but lacks idempotent/readonly annotations. No recovery guidance if scrape fails.

• Document the output schema explicitly in the tool description or as a separate schema definition. Include field names, types, and what each represents (e.g., 'Returns {wallet: {total_net_worth: string}, tokens: [{symbol: string, balance: string, value_usd: number}], protocols: [...]}')
• Add format and length constraints to the 'address' parameter: 'EVM wallet address (0x-prefixed, 42 characters, e.g., 0x1234...abcd). Invalid format returns error with example.'
• Implement error handling with actionable recovery guidance: 'If address is invalid, ensure it starts with 0x and is 42 chars. If DeBank is unreachable, retry in 30s. If timeout occurs after 60s, the wallet may be too large, try a simpler query.'
• Add tool annotations to the MCP server registration: mark get_wallet_portfolio with readOnlyHint=true and idempotentHint=true so agents know it's safe to retry.
• Consider adding optional parameters for result limiting: 'limit_tokens' (default 50) and 'limit_protocols' (default 20) to cap response size and improve performance for large portfolios.

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

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