Add a new audio track to your Ableton session at a specified index or at the end.
Create a new audio track in the Ableton session.
Parameters:
index: The index to insert the track at (-1 = end of list)
| Name | Required | Description | Default |
|---|---|---|---|
| index | No |
Changes observed during successful MCP inspections.
v2.0.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full burden. It explains the index parameter's semantics (-1 = end of list), which is useful. However, it does not disclose other behavioral traits such as whether the new track is selected, any return value, or error handling, leaving the agent with incomplete information for a create operation.
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, front-loaded with the purpose sentence, and includes a clear parameter explanation. Every line serves a purpose with no redundancy.
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?
For a simple one-parameter create operation, the description covers the parameter well but omits any mention of return values or side effects. Since there is no output schema, the description should have indicated what the agent can expect after creation, leaving a gap in completeness.
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 fully explains the only parameter 'index' with the meaning 'The index to insert the track at (-1 = end of list)', adding value beyond the schema which only specifies a default. This is complete and precise for the parameter.
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 'Create a new audio track in the Ableton session', which is a specific verb+resource. The 'audio' qualifier distinguishes it from sibling tools like create_midi_track, create_return_track, and create_group_track.
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 usage is implied by the name and description: to add an audio track to the session. However, there is no explicit guidance on when to use this tool over create_midi_track or other track creation tools, nor any prerequisites or exclusions mentioned.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.