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AbletonMCP

AbletonMCP

by juampicosta
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

setup_sidechain

Route a sidechain source track into a compressor on a target track to duck the target's audio when the source plays, enabling sidechain compression for effects like kick ducking on bass.

Instructions

Configure sidechain compression: route sidechain_source into the compressor on target_track so it ducks when the source plays (e.g., kick sidechain on bass).

target_track_index: track with the compressor/gate to sidechain sidechain_source_index: track whose signal triggers the ducking (e.g., kick)

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": {
      "target_track_index": "<target_track_index>",
      "sidechain_source_index": "<sidechain_source_index>"
    },
    "name": "setup_sidechain"
  }
}

Input Schema

NameRequiredDescriptionDefault
target_track_indexYes
sidechain_source_indexYes

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A4.1/5.0
Behavior3/5

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

With no annotations, the description carries full burden. It explains the routing effect but omits prerequisites (e.g., target track must have a compressor) and potential side effects or limitations. Some behavioral aspects are transparent, but gaps remain.

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 very concise, using three sentences to convey purpose, example, and parameter roles. Every sentence adds value, and the structure is front-loaded with the core 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?

Given the tool's simplicity (2 required params, no nested objects, output schema exists), the description is mostly adequate. However, it lacks practical context like device prerequisites, error cases, or state changes, making it slightly incomplete for a configuration action.

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 provides only types and titles (0% coverage). The description adds meaningful context: target_track_index as 'track with the compressor/gate' and sidechain_source_index as 'track whose signal triggers ducking', significantly enhancing understanding beyond the schema.

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 action ('Configure sidechain compression') and the specific resource (routing sidechain_source into compressor on target_track). It also provides a concrete example (kick sidechain on bass), distinguishing it from sibling tools.

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?

The description explains the mechanism and gives an illustrative example, making it clear when to use (when sidechain ducking is desired). However, it lacks explicit 'when-not' or alternative tools guidance, which would be helpful given the many sibling tools.

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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