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AbletonMCP

AbletonMCP

by juampicosta
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Python
Local

get_rack_info

Retrieve details of a rack device including chain count, macro count, and rack type.

Instructions

Get overview of a rack device: chain count, macro count, rack type.

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>",
      "device_index": "<device_index>"
    },
    "name": "get_rack_info"
  }
}

Input Schema

NameRequiredDescriptionDefault
track_indexYes
device_indexYes

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3/5.0
Behavior3/5

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

The description correctly implies a read operation ('get overview'), which is expected. However, with no annotations provided, the description does not disclose additional behavioral aspects such as permission requirements, impact on state, or performance characteristics. It meets basic expectations but does not go beyond.

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 sentence that immediately conveys the tool's purpose and the key information it returns. No extraneous words; efficient and front-loaded.

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?

The description is too minimal given the tool's context. It does not explain what constitutes a 'rack device' in the Ableton environment or how the track_index and device_index relate to the session structure. With an output schema present but not detailed, the agent lacks enough context to correctly apply the tool.

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

Parameters2/5

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

Input schema has two parameters (track_index, device_index) with 0% description coverage. The description does not clarify their meaning or valid ranges. For a tool with two required parameters in a likely indexing context, this omission reduces usability; the description should explain what these indices refer to.

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 retrieves an overview of a rack device, specifying the returned info: chain count, macro count, rack type. It uses a specific verb and resource, but among sibling tools like get_chain_details, get_device, get_macros, there's no explicit differentiation; the description is clear enough for an agent to infer its scope.

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 on when to use this tool versus alternatives like get_device or get_chain_details. Missing context about prerequisites or scenarios where this tool is preferred. The agent receives no help in decision-making.

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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