set_track_volume

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

No annotations are provided, so the description bears full responsibility. It explains the volume scale (0.0 silence, 0.85 0dB, 1.0 max), which is helpful. However, it does not disclose side effects (e.g., overriding automation, immediate application, reversibility). The behavioral description is minimal but not misleading.

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 extremely concise: one sentence plus a parameter list. Every word provides value. No redundant phrases or jargon. It is well-structured with clear parameter definitions, making it easy to scan.

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?

Given that an output schema exists, the description does not need to explain return values. However, it lacks any mention of behavioral context (e.g., whether the change is persistent, affects playback, or requires track to exist). The description is complete enough for a straightforward setter but omits potential error conditions or prerequisites.

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 descriptions for parameters, so the tool description adds critical meaning: track_index is 0-based, and volume has a specific scale with examples. This goes beyond the schema's type definitions. The explanation is clear and actionable, though it could include more detail on edge cases (e.g., negative values).

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 track volume' with explicit verb and resource. It distinguishes from sibling tools like set_track_pan, set_track_solo, etc., by focusing specifically on volume. The parameter explanations (0-based index, volume scale) further clarify the operation.

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 does not provide explicit guidance on when to use this tool versus alternatives (e.g., set_track_pan, set_track_mute). Usage is implied by the tool's name and purpose, but no contextual hints or exclusions are given. For a simple setter, this is acceptable but not exemplary.

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