Ableton MCP Extended

by zabolotniydj

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Python

Local

get_track_volume

Get a track's current fader volume, normalized range, and panning to evaluate state before making adjustments.

Instructions

Get the current fader volume and panning for a track.

Returns the raw normalized value, its min/max range, and the panning. Volume 0.85 = 0 dB unity gain. Use this before set_track_volume to understand the current state.

Parameters:

track_index: Track number (1-based). Return tracks come after session tracks.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "track_index": "<track_index>"
    },
    "name": "get_track_volume"
  }
}

Input Schema

Name	Required	Description	Default
`track_index`	Yes

Output Schema

Name	Required	Description	Default
`result`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.0.0Aug 21, 2026

TDQS

A4.2/5.0

Behavior3/5

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

No annotations are provided, so the description must disclose behavior. It details return values and the unity gain calibration (0.85 = 0 dB). While it implies read-only via 'get', it doesn't explicitly state non-mutating behavior or potential error conditions. Adequate but not exhaustive.

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

Conciseness4/5

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

The description is well-structured: starts with the core purpose, then return details, usage note, and parameter explanation. It is concise without unnecessary fluff, though the parameter info could be slightly condensed. Each sentence adds value.

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

Completeness4/5

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

Given one parameter, no annotations, and an output schema (exists but not shown), the description covers the essential return values and calibration. It explains the relationship to set_track_volume and indexing nuances. Minor gaps include failure scenarios, but overall it is sufficiently complete for a read-only query tool.

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

Parameters5/5

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

The input schema has no description for track_index (0% coverage), so the description compensates by explaining it is 1-based and that return tracks follow session tracks. This adds crucial indexing context beyond the raw schema, fully clarifying the parameter's meaning.

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 clearly states the tool retrieves current fader volume and panning for a track, specifying it returns raw normalized value, min/max, and panning. It distinguishes from siblings like set_track_volume by explicitly positioning itself as a read-before-write operation.

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

Usage Guidelines4/5

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

Provides explicit guidance: 'Use this before set_track_volume to understand the current state.' This establishes when to use the tool relative to a specific sibling. It also notes return tracks come after session tracks, giving contextual indexing info, though it doesn't compare with get_track_info for broader track properties.

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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