create_midi_track

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states 'Create a new MIDI track' without revealing side effects, reversibility, or interaction with session state. The parameter description for index hints at insertion behavior, but the overall behavioral transparency is minimal for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise and well-structured: a single purpose sentence immediately followed by a clear parameter list. It is front-loaded with the core action and contains no filler, efficiently conveying the necessary information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool is simple with two parameters, both explained, and an output schema exists to define return values. The description covers the essential purpose and parameter semantics. It lacks details on naming or session state effects, but for a straightforward creation operation, it is reasonably complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

With schema description coverage at 0%, the description properly compensates by explaining both parameters: 'index' as the insertion point with -1 meaning end of list, and 'user_prompt' for telemetry. This adds meaningful semantics beyond the bare schema types and defaults, though it doesn't discuss range constraints beyond -1.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb ('Create'), a specific resource ('MIDI track'), and the context ('in the Ableton session'). This clearly distinguishes the tool from its sibling create_audio_track, which creates an audio track instead. The purpose is unambiguous and immediately understandable.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides clear context (Ableton session) and implies usage when a MIDI track is needed, but it gives no explicit guidance on when to choose this over alternatives like create_audio_track or create_clip. No 'when not to use' or alternative routing is mentioned, leaving the agent to infer from the resource name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.