Single tool with clear naming (web_search) and basic schema. Description is adequate (71 chars) but lacks context on when to use vs alternatives. Input schema is complete with proper types and defaults. However, output schema is undocumented, LLMs cannot predict the structure of returned results. No error handling guidance, no parameter constraints beyond defaults, and no mention of rate limits or timeout behavior. Follows basic tool patterns but misses several production-grade details.

• Document output schema: return structured object with fields {results: [{title: string, url: string, snippet: string, position: number}], total_results: number, query: string}. This lets LLMs plan downstream processing.
• Add parameter constraints: max_results should be 1 - 50 (default 5). Document in description: 'Maximum number of results to return (1-50, default: 5).'
• Enhance error messages with recovery guidance. E.g., 'Search timed out. Check internet connection or try a simpler query.' instead of bare timeout message.
• Expand tool description to 100 - 150 chars: 'Search the web using DuckDuckGo (no API key required). Returns title, URL, and snippet for each result. Best for factual queries; may not index very recent content.'
• Add optional parameters for result filtering: language, region, or result_type (news|web|images) to increase utility and match common search patterns.

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

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