This server demonstrates good definition quality with 15 well-named tools across Minecraft modding documentation and mappings. All tools have substantive descriptions (avg ~150 chars) and comprehensive input schemas with typed parameters and enums. Naming follows verb_noun convention consistently (search_*, get_*, list_*, browse_*). However, output schemas are not visible in the provided source code, and error handling guidance is absent. Parameter descriptions are strong and actionable, with clear enums and constraints. The server exhibits solid patterns but lacks documented return types and recovery guidance needed for A-grade (80+).

• Document output schemas for all 15 tools. Explicitly state: return type (object/array), field names, field types, and which fields enable tool chaining (e.g., 'Returns {id, class_name, methods: [{name, signature}]}, pass class_name to get_class_details()' for search_mappings()).
• Add error recovery guidance to tool descriptions and parameter docs. Example: 'If lookup_obfuscated() returns "not found", try search_mappings() with the deobfuscated name, or list_mapping_versions() to confirm the Minecraft version is available.'
• Expand discovery tool descriptions with clear 'when to call' advice. Example for list_mapping_versions: 'Call this FIRST to see available Minecraft versions, then pass a version to search_mappings() or get_class_details().'
• Add explicit pagination documentation to search_* and list_* tools. State maximum result count, whether limit/offset or cursor-based pagination is supported, and whether results are sorted (by relevance, version, name). Example: 'Returns up to 50 results (configurable via limit parameter). Results sorted by relevance score descending. Use offset for pagination.'
• Enhance parameter descriptions with JSON Schema constraints: add minLength, maxLength, pattern, and minimum/maximum where applicable (e.g., limit: minimum 1, maximum 50; minecraft_version: pattern for version format like '^1\.\d{1,2}\.\d{1,2}').
• Add per-parameter dependency hints where applicable. Example for get_example: 'If you don't know the exact topic, call search_mod_examples() first to discover available patterns, then pass a topic to get_example().'