Two tools with minimal but present schemas and descriptions. hakoniwa_look has empty input schema (no parameters), which is valid but limits expressiveness. hakoniwa_move has proper enum constraint on 'dir' parameter and optional 'say' parameter with description. Both descriptions are action-oriented and under 200 chars, meeting baseline. However, parameter descriptions are sparse (only 'say' has a description; 'dir' lacks one despite being required). No output schema documentation. Error handling returns isError flag but lacks recovery guidance. Tool names follow verb_noun pattern (look, move) appropriately for a game-like domain.

• Add explicit description to 'dir' parameter: 'Direction to move: one of up, down, left, right. The dog will move one tile in that direction.'
• Document output schemas for both tools. For hakoniwa_look, document the map structure (w, h, cells, me, events, eaten). For hakoniwa_move, document response fields (me, eaten, blocked, events).
• Enhance error messages with recovery guidance. E.g., 'hakoniwa unreachable: connection refused. The game server may be down. Retry in a few seconds or check HAKONIWA_API environment variable.' instead of bare error text.
• Add tool annotations: set readOnlyHint=true for hakoniwa_look; set destructiveHint=true for hakoniwa_move (it modifies game state).
• Consider migrating from STDIO to HTTP+SSE or Streamable HTTP transport to enable remote client access and improve protocol readiness.