This server has critical definition gaps. Tool descriptions are present but minimal (10-50 chars, well below the 194-char baseline). Input schemas exist but lack parameter descriptions entirely, every parameter is undescribed, violating the 100% baseline for A+ tools. No output schemas are documented. Error handling is absent. The server is a FastAPI wrapper around tool functions, not a proper MCP server with schema registration. Tool names are reasonable (verb_noun style) but parameter documentation is completely missing.

• Add 50-150 character descriptions to every parameter. E.g., 'topic (string): The research domain to search (e.g., "quantum computing", "machine learning"). Used to query arXiv API.'
• Document output schemas for all tools. E.g., search_papers returns {papers: [{title: string, summary: string, arxiv_id: string}], total_count: number}.
• Expand tool descriptions to 150-250 chars explaining WHAT, WHEN, and WHAT IT RETURNS. E.g., 'Search arXiv for papers matching a research topic. Use this to discover papers before analyzing them. Returns up to 20 papers with title, abstract, and ID.'
• Add error handling with recovery hints. E.g., 'Topic not found on arXiv. Try a broader term (e.g., "machine learning" instead of "federated learning on edge devices").'
• Add limit and offset parameters to get_graph_data and find_connections to support pagination. Cap results at 50 nodes/edges per page.