set_track_pan

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

No annotations are provided, and the description carries the full burden. It only states 'Set the panning' with no disclosure of side effects, reversibility, error behavior, or whether it overrides automation. Similar to the update_drive example, this is a mutation tool lacking behavioral context.

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 exceptionally concise, with a single purpose statement followed by clearly formatted parameter documentation. Every sentence adds value with no redundancy or fluff.

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 setter with only two fully described parameters and an output schema, the description covers the essential information. Minor gaps like handling of invalid indices or interaction with automation exist, but are not critical given the tool's simplicity.

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 0% description coverage, but the description thoroughly explains both parameters: track_index is zero-based, and pan has a detailed range from -1.0 to 1.0 with 0.0 as center. This fully compensates for the schema's lack of descriptions.

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 panning of a track' with a specific verb and resource. It distinguishes itself from siblings like set_track_volume and set_master_pan by specifically targeting panning.

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 usage through its clear statement of function, but provides no explicit guidance on when to use this tool versus alternatives, no prerequisites, and no exclusionary contexts.

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