set_track_pan

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

With no annotations, the description carries full burden. It clearly states the mutation ('set') and the valid pan range, but does not disclose side effects, error behavior, undoability, or persistence. It is minimally transparent but lacks deeper 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?

Two short sentences with a clean parameter list. Every word adds value, and the most important information is front-loaded. 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 2-parameter setter with no output schema, the description covers all necessary information: what it does, parameter meanings, and acceptable values. It is complete enough for an agent to invoke the tool correctly.

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?

Schema has zero description coverage, so the description is the only source of meaning. It thoroughly explains both parameters: track_index as 'the index of the track' and pan with a specific range from -1.0 to 1.0 including center. This fully compensates for the absent schema 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 the action (set) and target resource (panning of a track), distinguishing it from siblings like set_master_pan and set_return_pan. The verb+resource construction is specific and unambiguous.

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 for setting a track's pan but does not explicitly state when to use this over alternatives or provide exclusion criteria. There is no mention of related tools or prerequisites, but for a simple setter, the context is fairly clear.

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