set_track_solo
Set a REAPER track's solo state by index to isolate it for monitoring or mixing, or unsolo it to restore normal playback.
Instructions
Solo or unsolo a track.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| index | Yes | ||
| soloed | Yes |
Set a REAPER track's solo state by index to isolate it for monitoring or mixing, or unsolo it to restore normal playback.
Solo or unsolo a track.
| Name | Required | Description | Default |
|---|---|---|---|
| index | Yes | ||
| soloed | Yes |
Changes observed during successful MCP inspections.
v0.2.0Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full behavioral burden, and it says nothing about whether soloing is exclusive, whether it affects the audition mix, or whether the change is persisted. For a project-state mutation with zero annotation coverage this is a significant gap.
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?
A single tight sentence with the action front-loaded and no filler. It is efficient, though the brevity borders on under-specification rather than optimal conciseness.
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?
With no annotations, no output schema, and 0% schema coverage on two required parameters, the description does not supply enough to call the tool confidently. It omits track-index semantics and solo exclusivity behavior that an agent would need.
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?
Schema description coverage is 0%, so the description is the only source of parameter meaning and it supplies none. 'index' is almost certainly a track index but that is never stated, and the boolean 'soloed' semantics (true=solo, false=unsolo) must be guessed.
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?
States a specific verb (solo/unsolo) and resource (track), and the boolean parameter makes the dual direction explicit. It does not, however, differentiate itself from the sibling set_track_mute or clarify that soloing is the track-level counterpart of play/mute.
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?
No guidance on when to use this instead of the mute or selection siblings, no prerequisites, and no mention of how solo interacts with already-soloed tracks. The agent is left to infer usage entirely.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.