Server has 8 tools with basic schemas and descriptions, but significant gaps limit production readiness. All tools have descriptions (10-50 chars, mostly short), and input schemas are present with type definitions. However, descriptions lack depth, most are single-sentence and do not explain WHEN to use the tool, prerequisites, or dependencies. Parameter descriptions are minimal (e.g., 'IP address of the Sushi server' without format guidance). Output schemas are not documented, LLMs cannot predict response structure. Error handling is absent; tools return raw strings without guidance on recovery. No enum constraints on mode parameters (set_playing_mode accepts free-form 'mode' string). Tool composition is reasonable (single responsibility), but missing chaining IDs in responses (e.g., get_all_tracks returns track IDs but no context for downstream processor lookups). Security: global state (sushi_ip, sushi_port) is mutable and not validated; no rate limiting or permission checks.

• Add enum constraint to set_playing_mode 'mode' parameter: {"type": "string", "enum": ["STOPPED", "PLAYING", "RECORDING"], "description": "Playing mode. STOPPED halts playback, PLAYING starts playback, RECORDING records audio."}
• Document output schemas for all tools. E.g., get_sushi_info returns {"version": string, "build_options": [string], "audio_buffer_size": int, "commit_hash": string, "build_date": string, "input_channels": int, "output_channels": int}
• Expand descriptions to 50-150 chars with WHEN/WHY context. E.g., 'Get Sushi system info (version, build, channel count). Call this first to verify server connectivity and audio configuration before setting tempo or tracks.'
• Add error classification and recovery guidance. E.g., set_sushi_server should return {"status": "error", "code": "connection_failed", "message": "Failed to connect to {ip}:{port}: {reason}", "retry": true, "next_step": "Verify IP/port are correct and Sushi server is running."}
• Validate tempo parameter (e.g., 20-300 BPM range) and return structured error if out of bounds. Add permission check before set_tempo and set_playing_mode; log who called what and when for audit trail.

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry