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LofiFren

ableton-mcp-lofifren

by LofiFren

create_audio_track

Inserts a new audio track at a specified position in the Ableton Live session for precise arrangement.

Instructions

Create a new audio track in the Ableton session.

Parameters:

  • index: The index to insert the track at (-1 = end of list)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
indexNo
Behavior2/5

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

With no annotations, the description carries full burden but only states the tool creates an audio track. It does not disclose side effects, required permissions, error behavior, or what happens if the index is invalid.

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: one sentence for purpose and one for parameter explanation. It is front-loaded and contains no fluff.

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?

For a simple tool with one parameter and no output schema, the description covers purpose and parameter meaning. However, it lacks information on how this tool relates to sibling tools and any return value, leaving gaps for an AI agent to fully determine applicability.

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?

The description explains the sole parameter 'index' with its default and meaning ('insert at, -1 = end of list'), adding valuable context beyond the schema's minimal properties. Schema description coverage was 0%, so this compensation is significant.

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 tool creates an audio track in the Ableton session ('Create a new audio track'), but does not differentiate from sibling tools like 'create_midi_track' or 'create_track', which could cause confusion.

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 (e.g., create_midi_track, create_track). The description lacks any context about prerequisites or conditions for use.

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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