Server has 4 tools with basic descriptions and parameter documentation, but significant gaps prevent higher scores. Tool names follow verb_noun convention (getAvailableLeagues, getFilteredLeagues, getAllTeams, echo). Descriptions exist but are minimal (10-50 chars), below the 50-200 char LLM-optimized baseline. Parameter descriptions are present but lack constraints (enums, ranges, formats). Output schemas are not documented, LLMs cannot infer what fields to expect from responses. The 'echo' tool is a test utility, not domain-relevant. No error handling guidance, no pagination support despite potential for large result sets, no idempotency hints. Tool composition is reasonable (single responsibility), but parameter naming could be more explicit (e.g., 'leagueShortcut' vs 'league_shortcut' breaks convention).

• Document output schemas for League and Team objects. Specify fields (id, name, shortcut, season, etc.), types, and which fields are needed for downstream tool calls.
• Expand tool descriptions to 80-150 chars. Example: 'getAvailableLeagues: Retrieves all leagues available in OpenLigaDb. Use this to discover league names and shortcuts before calling getAllTeams. Returns League objects with id, name, shortcut, and season info.'
• Add constraints to 'filter' parameter: 'String, 1-100 chars, case-insensitive substring match. Special characters allowed.'
• Add pagination to getAllTeams and getAvailableLeagues: accept 'limit' (1-100, default 20) and 'offset' (0+) parameters. Return total_count in response.
• Standardize parameter naming to snake_case: rename 'leagueShortcut' → 'league_shortcut', 'leagueSeason' → 'league_season' for consistency with tool naming convention.

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

• Relies on Sampling (deprecated) - integrate directly with the LLM provider API