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create_empty_midi_clip

Create an empty MIDI clip on a specified track in Ableton Live at a given time and length in beats, enabling precise control over clip placement and structure for music production.

Instructions

create empty midi clip on track

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
lengthYesLength is given in beats and must be a greater value than 0.0.
timeYes[float] the time in beats of absolute clip time. such as 4 is 4 beats
track_idYes
Behavior2/5

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

With no annotations provided, the description carries full burden but only states the basic action without disclosing behavioral traits. It doesn't mention whether this is a destructive operation, what permissions are needed, how errors are handled, or what the expected outcome looks like (e.g., clip ID returned).

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 a single, efficient sentence with zero wasted words. It's front-loaded with the core action and resource, making it easy to parse quickly.

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

Completeness2/5

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

For a creation tool with 3 required parameters, no annotations, and no output schema, the description is insufficient. It doesn't explain what 'empty midi clip' means in practice, what happens after creation, or how to handle the result. The lack of behavioral and output information leaves significant gaps.

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

Parameters3/5

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

Schema description coverage is 67%, with 'track_id' lacking a description in the schema. The tool description adds no parameter-specific information beyond what's implied by the action ('on track' hints at track_id). It doesn't compensate for the undocumented parameter or provide additional context about parameter interactions.

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

Purpose4/5

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

The description clearly states the action ('create') and resource ('empty midi clip on track'), making the purpose immediately understandable. It doesn't explicitly differentiate from sibling tools like 'duplicate_clip_to_track' or 'crop_clip', but the specificity of 'empty midi clip' provides some implicit distinction.

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?

The description provides no guidance on when to use this tool versus alternatives like 'duplicate_clip_to_track' or 'record_by_time_range'. It lacks context about prerequisites (e.g., needing an existing track) or typical scenarios for creating empty clips versus populated ones.

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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