Server has 8 tools with basic schemas and descriptions, but significant gaps prevent higher scoring. Tool names follow verb_noun convention (search_papers, fetch_paper, etc.), which is good. However, descriptions are generic (avg ~50 chars, well below the 194-char baseline for A+ tools). Input schemas are present but minimal, most parameters lack detailed constraints, enums, or format specifications. Output schemas are referenced in config files but not visible in provided source, so cannot be verified. No evidence of error handling guidance, recovery paths, or actionable error messages. Parameter descriptions are sparse (e.g., 'Search query string' for query param lacks format/length guidance). No tool annotations (readOnlyHint/destructiveHint) despite clear read/write distinction. The manage_cache tool is marked WRITE but has no confirmation or dry-run pattern.

• Expand tool descriptions to 100-200 characters. For search_papers: 'Search academic papers across arxiv, openalex, and scholar. Use for broad topic exploration. For complex queries with boolean operators, use advanced_search instead. Returns up to [limit] results with title, authors, abstract, and paper_id for fetching details.'
• Add enums for 'sources' parameter: {"type": "array", "items": {"enum": ["arxiv", "openalex", "scholar"]}, "description": "Paper sources to search. Valid: arxiv, openalex, scholar. At least one required."}
• Document output schemas explicitly in tool configs. Ensure search_papers returns {paper_id, title, authors, abstract, source, url} so agents can chain to fetch_paper(id). Include total_count and next_cursor for pagination.
• Add tool annotations: mark search_papers, fetch_paper, fetch_latest, list_categories, advanced_search, trend_analysis, smart_cache_search with readOnlyHint=true. Mark manage_cache with destructiveHint=true and add a dry_run parameter.
• Add parameter constraints: query (min 1, max 500 chars), limit (min 1, max 100, default 20), period enum (day|week|month|year|all). Include format guidance: 'period must be one of: day, week, month, year, all'.

Inferred effective spec: 2025-06-18+.

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