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An MCP server that provides tools to query Pokémon data including information by ID, name, generation, types, team generation, and type weaknesses
8 tools with basic verb-noun naming (get_*) but significant quality gaps. All tools have descriptions (10-50 chars, below 194-char baseline), but lack depth on WHEN to use them and dependencies. Input schemas present but minimal, parameters have types and brief descriptions, but no enums, ranges, or constraints. Output schemas completely undocumented; tools return free-text strings instead of structured JSON. Error handling is generic ('Erreur lors de...') with no recovery guidance. No tool annotations (readOnlyHint, idempotentHint). Composition is reasonable (8 single-purpose tools), but output format forces LLM to parse unstructured text.
Get all available Pokémon types.
Generate a balanced team suggestion.
Get Pokémon by dual types.
Get Pokémon by generation.
Get information about a Pokémon by ID.
Get information about a Pokémon by name.
Get Pokémon with weakness to a specific type.
Generate a random team of Pokémon.
Output schemas completely undocumented. All 8 tools return free-text strings (e.g., 'Trouvé 5 Pokémon...') instead of structured JSON objects. LLMs cannot extract typed fields, parse lists, or chain results to downstream tools. Violates pattern:response-shaper and mxe:strip-api-responses.
Parameter descriptions lack constraints. 'generation' accepts 1-8 but description says only '(1-8)' without stating it's required or what happens if out-of-range. 'type1' and 'type2' in GetPokemonByDualTypes have no enum of valid types (Eau, Feu, Vol, etc.). LLMs will hallucinate invalid values. Violates pattern:constrained-input.
| Scored | Grade | Overall | Spec posture | Rubric |
|---|---|---|---|---|
| 2026-09-23 | F | 34 | 2026-07-28+ | v2 |
Tool descriptions are too brief (25-35 chars vs 194-char baseline). 'Get information about a Pokémon by ID' does not explain WHEN to use GetPokemonById vs GetPokemonByName, or what fields are returned. No dependency hints (e.g., 'Use GetAllTypes first to see valid type names'). Violates pattern:tool-description.
Error handling is generic and non-actionable. All tools catch exceptions and return 'Erreur lors de...' with only the exception message. No recovery guidance (e.g., 'Try GetAllTypes() to see valid type names'). No error classification (retryable vs user-fixable). Violates pattern:recovery-guide.
No tool annotations. Tools lack readOnlyHint, idempotentHint, or destructiveHint. LLMs cannot determine which tools are safe to retry or whether they modify state. All tools are read-only but this is not declared. Violates current MCP spec (2026-07-28) tool annotation requirement.