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TypeWolf

lmms-mcp

by TypeWolf

solo_track

Isolate any track in an LMMS project by soloing it, or restore normal playback with unsolo. Specify the track index and set solo to true or false.

Instructions

Solo or unsolo a track.

Args: track_index: Zero-based track index solo: True to solo, False to unsolo

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
soloNo
track_indexYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.7/5.0
Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure, but it only states the action. It does not explain whether soloing one track unsolos others, what happens when the track index is invalid, or what observable effect the tool has on the project/playback.

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 and front-loaded. The first sentence states the entire purpose, and the Args section adds parameter semantics in a compact, scannable format with no filler.

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 two-parameter toggle, the description is minimally adequate, but it leaves out important behavioral context such as whether solo is exclusive, how unsolo interacts with other soloed tracks, and error behavior. The output schema may cover return values, but operational expectations are not fully specified.

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 schema provides types and a default but no descriptions, so the description's Args section supplies essential meaning: track_index is zero-based and solo explicitly maps true/false to solo/unsolo. This compensates well for the 0% schema description coverage, though it does not mention default behavior when 'solo' is omitted.

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 opens with a specific verb and resource: 'Solo or unsolo a track.' This clearly distinguishes the tool's function from sibling tools like mute_track or set_track_volume, since soloing is a distinct mixing action.

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

Usage Guidelines3/5

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

The intended use is implied: call this when you want to change a track's solo state. However, there is no explicit guidance about when to use it instead of related track controls, nor any mention of prerequisites or effects on other tracks.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.