The server has 5 tools with basic schemas and descriptions, but significant quality gaps reduce the score substantially. All tools follow a consistent verb_noun naming pattern (get_*), which is a strength. However, descriptions are minimal (8-17 characters), falling far below the 194-char baseline for A+ tools. Input schemas are present but trivial, each tool accepts only a single required 'team' string parameter with minimal context. Output schemas are completely undocumented: there is no indication what fields get_latest_matches returns, what structure get_players provides, or how pagination (if any) works. Error handling is absent, there are no recovery guides, retry hints, or suggestions for invalid inputs. The tools lack parameter constraints (e.g., enums for team names, validation of the 'team' parameter format). No tool documents what its output looks like, forcing LLMs to guess. The server is STDIO-only, which is a hard transport limitation but not scored here, see protocolReadiness.

• Expand tool descriptions to 50-200 characters. Include WHAT the tool does, WHEN to use it, and a hint at the output. Example: 'get_latest_matches: Retrieve the 10 most recent matches for a team (league name required). Returns match dates, scores, team logos. Use this to show recent team performance.'
• Document output schemas for every tool. For get_latest_matches, declare: {matches: [{title, date, home_team, home_logo, away_team, away_logo, score}, ...]}. For get_players, declare the structure (e.g., [{name, position, number, age}, ...]).
• Add an enum parameter for 'team' with valid team names (e.g., 'team': {enum: ['Manchester United', 'Liverpool', 'Arsenal', ...]}) or introduce a discovery tool list_available_teams() that returns valid options. This prevents hallucinated team names.
• Implement pagination: add 'limit' (default 10, max 50) and 'offset' (default 0) parameters to get_latest_matches and get_next_matches. Document: 'Returns up to 10 matches; use offset to paginate.'
• Add error recovery hints in tool descriptions. Example: 'If a team is not found, try searching with a partial name or call list_teams() to see available options.'
• Add a discovery tool (e.g., list_teams or search_teams) that returns valid team names and slugs. This enables the agent to discover valid input before calling the fetch tools, eliminating hallucination.
• Verify and show the actual tool registration code in internal/mcp/tool/*.go files. Ensure tool names, descriptions, and schemas are explicitly defined in the Go implementation, not inferred from HTTP handlers.