set_clip_fade_in

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

No annotations are provided, so the description carries the full burden. It conveys that the operation is a 'Set' (mutation) but does not disclose side effects, overwrite behavior, valid value ranges, or errors, similar to the update_drive calibration example.

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 a single purpose statement followed by a compact parameter list. It is front-loaded with the core action and contains no unnecessary words or filler.

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, the description covers the basic purpose and parameter semantics. However, it lacks usage context (e.g., audio-only clips, overwriting existing fades) and provides no information about return values or failure behavior, leaving it somewhat incomplete.

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 manually explains all four parameters, adding meaning such as 'Fade-in start position in beats' and 'Fade-in end position in beats.' This compensates for the bare schema titles.

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 an audio clip's fade-in region, in beats,' which is a specific verb, resource, and scope. The sibling tool set_clip_fade_out exists, making it easy to distinguish from its counterpart.

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?

No guidance is given on when to use this tool versus alternatives. There is no mention of prerequisites, applicable clip types, or exclusion conditions, leaving usage fully implied by the name.

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