Strong foundation with 17 well-named tools following verb_noun convention (search_*, get_*, list_*, submit_*, verify_*, reject_*). All tools have descriptions (avg ~120 chars, within 10-1024 baseline). Input schemas present with types and descriptions for all parameters. Tool annotations correctly applied (readOnlyHint, destructiveHint). Key gaps: output schemas not documented in source; some parameter descriptions lack format/constraint details; error handling guidance minimal; no pagination metadata (has_more, next_offset) visible in schema definitions despite being mentioned in descriptions.

• Document output schemas for all tools. Add a 'Returns' section to each tool description or expose response_schema in the tool definition. Example: search_games returns {results: [{id, abbreviation, names, release_year}], has_more: bool, next_offset: int}.
• Add format constraints to parameters. Use JSON Schema 'format' (e.g., 'date-time') and 'pattern' (e.g., regex for game IDs). Update descriptions: 'game: Game id (e.g., o1y9wo6q) or abbreviation (e.g., sm64), 1-20 alphanumeric chars.'
• Enhance error recovery hints. For tools that lookup resources (get_game, get_player), add: 'If not found, try search_games() or search_players() with a partial name.'
• Add dry-run or confirmation for write tools. Modify submit_run to accept a 'dry_run' boolean parameter (default false) that validates without submitting. Document: 'Set dry_run=true to validate before submitting.'
• Clarify pagination in response. Update search_games description: 'Returns up to `limit` results. If has_more=true, pass next_offset to the next call to continue.' Ensure next_offset is documented as an output field.