Swing Fill Light Down

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

The description states the action is a rotation 'in an arc around the center of the model', adding behavioral context beyond the name. However, with no annotations provided, it does not disclose potential side effects, limits, or if the action is incremental, which would improve transparency.

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 sentence that is concise, front-loaded, and contains no filler. Every word adds value.

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 the tool has no parameters, no output schema, and many sibling tools, the description provided is sufficient for an agent to understand its purpose and differentiate it from others. However, it could mention the step size or that it is a continuous action for 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 tool has no parameters and the input schema is empty, with 100% coverage. The description adds no parameter details, which is expected. Baseline 4 for zero-parameter tools.

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 uses a specific verb 'Rotate' and identifies the resource 'fill light' with direction 'downward'. It clearly distinguishes from sibling tools like swing_fill_light_up or swing_fill_light_left by specifying the arc direction.

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 when to use this tool (to rotate fill light downward) but lacks explicit guidance on when not to use it or alternatives. For a simple one-direction action, this is adequate but not explicit.

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