The server provides 9 OSINT tools with visible schemas and descriptions. However, several critical quality issues prevent a higher score: (1) Naming is weak, tools like 'analyze_link', 'investigate_email', and 'investigate_username' use generic verbs that don't clearly indicate the specific action (analyze what? investigate how?). Per the rubric baseline, 90% of A+ tools start with action verbs; these do, but they're vague. (2) Descriptions are present but brief (avg ~100-150 chars), lacking context for when to use each tool vs. alternatives. The rubric baseline is 194 chars avg for tool descriptions. (3) Parameter descriptions are sparse or absent in some cases, e.g., 'region' and 'safesearch' parameters in web_search have descriptions, but the rationale for these options is not explained. (4) Output schemas are NOT documented, tools return JSON responses, but no schema is provided for what fields clients should expect. Per the rubric, 100% of A+ tools document return types. (5) Error handling is basic, errors are returned as JSON strings but lack recovery guidance (e.g., 'If query is empty, provide a search term' instead of bare 'Query is required'). (6) No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite all being READ_ONLY. (7) One tool (check_*_status tools) has no meaningful input parameters and adds little value, they're discovery helpers, not core OSINT functionality. Overall, the server is functional but lacks polish and LLM-optimization.

• Add output schemas for all tools. Document the fields returned (e.g., web_search returns [{title, body, href, source}, ...], news_search returns [{title, body, url, date, source}, ...]). Clients need this to plan downstream operations.
• Rename vague tools: 'analyze_link' → 'scrape_link_profile', 'investigate_email' → 'query_email_breaches', 'investigate_username' → 'search_username_across_platforms'. Use verbs that clearly indicate action.
• Enhance error messages with recovery guidance. Instead of 'Query is required', return: 'Query is required. Provide a search term (e.g., "CVE-2024-1234" or "leaked email database").' This guides LLM self-correction.
• Add tool annotations to schema. Include readOnlyHint=true in all tool definitions to indicate they are safe to cache and retry.
• Remove or consolidate status check tools. Integrate availability checks into the main tools (e.g., attempt tool call, catch ImportError, return helpful message) or provide a single 'check_osint_dependencies' tool.
• Expand parameter descriptions with constraints. For numeric params (max_results, timeout, max_profiles), state min/max bounds. For enums (region, safesearch), list valid values.
• Expand tool descriptions to 150-250 chars. Include: (1) What the tool does, (2) When to use it vs. alternatives, (3) What it returns (as a summary, full schema separate).
• Document external dependencies. Clearly state that tools require duckduckgo-search, mosint, sherlock packages and provide installation instructions in server README.