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set_clip_pitch

Adjust the pitch of an audio clip in Ableton Live by specifying track, clip, and semitone shift. Enables precise pitch control for music production.

Instructions

Set the pitch shift of an audio clip.

Parameters:

  • track_index: The index of the track

  • clip_index: The index of the clip slot

  • pitch: Pitch shift in semitones (-48 to +48)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pitchYes
clip_indexYes
track_indexYes
Behavior2/5

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

With no annotations, the description carries the full burden of behavioral disclosure, but it only states the action without mentioning reversibility, error handling, or whether the change is immediately applied. The pitch range is the only additional behavioral hint.

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

Conciseness5/5

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

The description is extremely concise: a single sentence plus a parameter list with no unnecessary words or repetition. It is front-loaded with the primary action.

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

Completeness3/5

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

This is a simple setter with three parameters, and the description covers the essential parameter semantics. However, it does not mention return values, error behavior, or relate to the sibling get_clip_pitch tool, making it minimally adequate rather than complete.

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

Parameters4/5

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

Schema description coverage is 0%, so the description compensates by listing each parameter with a brief explanation, including the pitch range (-48 to +48). This adds value beyond the bare schema names, though it omits details like 0-based indexing.

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

Purpose5/5

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

The description uses the specific verb 'Set' and clearly names the resource 'pitch shift of an audio clip', distinguishing it from sibling tools like get_clip_pitch and other set_clip_* tools.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives such as get_clip_pitch, nor any prerequisites or exclusions. The usage is only implied by the verb and parameters.

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

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