set_track_volume

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

With no annotations, the description carries full responsibility for disclosing behavior. It only specifies the volume range (0.0 to 1.0) and a default (0.85), but does not state whether track_index is zero-based, whether setting volume affects automation, or whether the change is undoable. The behavior of the setter is otherwise opaque.

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 sized: a one-sentence purpose and a clean bullet list of parameters. It is front-loaded with the main verb-resource statement and contains no extraneous text.

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 low-complexity setter tool, the description is minimally adequate. It covers the essential parameters and their ranges, but omits contextual details like track_index orientation and volume scaling. Given the rich set of sibling track tools, a bit more surrounding context (e.g., index base) would improve completeness.

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 provides no descriptions (0% coverage), so the description adds critical meaning. It explains both parameters: track_index as 'the index of the track' and volume with a range and default. However, it stops short of clarifying track_index base (0 vs 1) or volume scaling (linear vs dB), so it doesn't fully compensate for the schema gap.

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 'Set the volume of a track' with a specific verb and resource, distinguishing it from sibling tools like set_track_pan or set_track_mute. The parameter list reinforces this purpose without ambiguity.

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 provides no guidance on when to use this tool versus alternatives. It does not mention exclusions, prerequisites, or when another tool would be more appropriate (e.g., using set_track_pan for stereo positioning). The only implied usage is from the tool name itself.

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