set_track_color

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states the action and parameter meanings, without mentioning that this is a write operation, potential side effects, whether the change is undoable, or any permissions required. The verb 'Set' implies mutation, but no safety or side-effect context is given.

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?

The description is appropriately concise: a single-sentence summary front-loaded at the top, followed by a clean bulleted list of parameters. Every sentence adds value, with no redundant or promotional language.

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?

For a simple property-setter tool with only three parameters, no output schema, and no annotations, the description adequately covers the core action and all parameters. It does not discuss edge cases like out-of-range track indices or color format validation, which could be helpful, but these are not critical for basic invocation. The frequent sibling tools for other track settings further contextualize the scope.

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?

The input schema has no parameter descriptions (0% coverage), but the description compensates by explaining each parameter: track_index as the index of the track to recolor, color as a 24-bit RGB integer with concrete examples (0xFF0000 and decimal 16711680), and user_prompt for telemetry. This adds significant meaning beyond the raw schema.

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?

The description clearly states the tool's function with a specific verb ('Set') and resource ('a track's color'), immediately distinguishing it from sibling tools that set other track properties like name, volume, or mute. The one-sentence summary leaves no ambiguity about what the tool does.

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?

The description implies the tool should be used when a track's color needs to be changed, but it does not explicitly state when to use it versus alternatives, nor does it mention any prerequisites (e.g., track must exist) or exclusion conditions. This is minimal viable guidance.

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