Three tools with minimal English descriptions (all in Chinese). oni_ping and oni_state have empty input schemas ({}), violating the requirement that every parameter needs a description. oni_map has a proper schema with typed parameters and descriptions, but the tool descriptions themselves are lengthy Chinese text without English translations, making them inaccessible to most LLM agents. No error handling guidance, no output schemas documented, no tool annotations. Naming follows verb_noun pattern (oni_*) but lacks clarity for non-domain-expert LLMs.

• Translate all tool descriptions to English. oni_ping: 'Verify the game bridge is alive. Safe to call from main menu, does not modify game state.' oni_state: 'Get current colony state: name, cycle count, map dimensions, and all duplicant names/positions/health.' oni_map: 'Read grid data for a rectangular region: element type, temperature (°C), and mass (kg) per cell. Max 40×40 cells per call.'
• Add explicit output schemas for each tool. E.g., oni_state returns {colony: string, cycle: int, world: {w: int, h: int}, duplicants: [{name, x, y, hp, hpMax}]}.
• Add tool annotations: mark all three tools with readOnlyHint=true since they do not modify game state.
• Document parameter constraints in oni_map: 'x, y must be valid map coordinates (0 to world.w-1, 0 to world.h-1). w, h clamped to 1 - 40.'
• Add error handling guidance: 'If game is not running, returns error. If coordinates are out of bounds, returns error with valid range. Retry-safe (idempotent).'