create_clip

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

No annotations are provided, so the description must disclose behavioral traits. It states the action but does not mention side effects (e.g., overwriting existing clips, undo behavior), permissions, or return value. For a mutation tool, this is insufficient transparency.

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, with a clear first sentence followed by a parameter list. It earns its place by providing parameter details missing from the schema. Minor improvement: front-loading the parameter names into the narrative could be slightly cleaner.

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 has a simple interface (3 params) and an output schema exists but is not described. The description explains creation but omits what happens if the slot is occupied, whether the operation is undoable, or any return values. It is adequate but not fully comprehensive for an agent.

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?

The description adds meaning beyond the schema: track_index and clip_index are explained as 0-based, and length is documented as 'Clip length in beats' with a default of 4.0 representing 1 bar in 4/4. This compensates for the schema's 0% description coverage. However, it could include constraints like valid ranges.

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 clearly states the tool's purpose: 'Create a new empty MIDI clip in a clip slot.' It specifies the resource (MIDI clip) and the action (create). This distinguishes it from sibling tools like delete_clip or fire_clip.

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?

No guidance on when to use this tool over alternatives. It does not mention prerequisites (e.g., clip slot must be empty) or provide context for typical use cases. The description only lists parameters without explaining when creation is appropriate.

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