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selection_get_selected_tracks

Retrieve full details for every currently selected track in REAPER, including name, color, and volume settings. Use when you need complete track information beyond just index numbers.

Instructions

Get a list of all currently selected tracks with their full info.

Just need to know which indices are selected, alongside other project state? project_get_overview() returns indices only (cheaper) as part of a combined read — use this tool instead when you need full detail (name, color, volume, etc.) on each selected track.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

No annotations provided, so description carries full burden. It adequately describes the tool as a read operation returning full track info, which is sufficient for a simple getter. No side effects mentioned, but none expected.

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?

Two sentences, no fluff. First sentence states purpose, second provides guidance. Efficient and front-loaded.

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

Completeness5/5

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

Given no parameters, no output schema, and simple tool, description is complete. It covers purpose, usage, and return value. No gaps identified.

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?

Tool has zero parameters, so baseline is 4. Description doesn't need to add param info. It does hint at output content (full detail) which adds context beyond 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 tool gets selected tracks with full info, using specific verb 'Get' and resource 'selected tracks'. It distinguishes from sibling project_get_overview by noting that this tool returns full detail vs indices only.

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

Usage Guidelines5/5

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

Explicitly tells when to use this tool (when full detail needed) and when to use alternative (project_get_overview for indices only), including cost comparison.

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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