This server has 4 tools with explicitly registered schemas and descriptions. However, several critical quality gaps emerge: (1) Parameter descriptions are sparse or missing; (2) Output schemas are completely undocumented, LLMs cannot plan downstream calls; (3) Error handling is absent, no guidance on recovery or retries; (4) Tool names are clear but some descriptions lack actionable context. The compose_midi tool has a moderately detailed schema, but three tools (create_midi_track, create_audio_track, delete_midi_notes) have minimal parameter documentation. No security annotations, no output structure guidance, and no acknowledgment that these are destructive operations. Average tool score: 52/100.

• Add output schema documentation to all tools. Example for create_midi_track: '...returns {track_id: string, track_name: string, track_index: number}'. LLMs will use these fields in downstream calls.
• Expand tool descriptions to 100-150 chars. Include WHEN and WHY. E.g., 'Create a new MIDI track to begin composing musical sequences. Use this before calling compose_midi to add notes. Returns track metadata for use in subsequent tool calls.'
• Add destructiveHint: true to create_midi_track, create_audio_track, and delete_midi_notes so agents recognize they have side effects.
• Clarify delete_midi_notes parameter descriptions: 'fromPitch: Starting MIDI pitch (0-127, where 0=C-2, 60=Middle C, 127=G8)' and 'pitchSpan: Number of semitones to span (0-127)' to ensure LLMs understand the range and semantics.
• Document what each tool returns on success. E.g., compose_midi should state: 'Returns confirmation: {notes_added: number, time_range: {start, end}, success: boolean}' so the LLM knows what to expect.
• Add error recovery hints. E.g., 'If track creation fails with timeout, ensure Ableton is running and try again. If 'index out of range', use index=-1 for default placement.'
• Add idempotentHint: true to create_midi_track and create_audio_track if they are safe to call multiple times with the same input without duplicating tracks (verify implementation). If not idempotent, document this explicitly so agents do not retry them blindly.
• Consider splitting compose_midi or adding a validate_midi tool to help agents plan correct note arrays before submission, reducing errors.

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

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