setup_three_point_lighting

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

The annotations indicate destructiveHint=true, but the description does not elaborate on what destructive behavior occurs, such as overwriting existing lights or altering the scene. It also does not mention any side effects or required permissions. The description adds no context beyond the basic function, failing to leverage the opportunity to disclose behavioral traits.

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 short sentence with no wasted words, front-loading the core purpose. However, it is so terse that it omits essential details, which slightly detracts from its structural value. It earns a high conciseness score for efficiency, but not a perfect one because it sacrifices informativeness.

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 this tool is destructive (per annotations) and has a required parameter, the description is incomplete. It does not mention how the tool interacts with existing lights, what the output schema represents, or any setup needed before calling. The presence of an output schema doesn't excuse the lack of explanation about the tool's effects, making the context insufficient for an agent to use it 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?

The schema description coverage is 0%, meaning the description does not explain the 'intensity' or 'target_name' parameters. While their names are somewhat self-explanatory, the description offers no insight into how values affect the lighting setup, what units intensity uses, or what 'target_name' refers to exactly. It completely fails to compensate for the low schema coverage.

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 tool creates a key + fill + rim lighting setup around the object's bounding box, which distinguishes it from the generic 'create_light' sibling. However, it lacks an explicit verb in the description itself, relying on the tool name ('setup') for the action, making it slightly less assertive than the highest standard.

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?

There is absolutely no guidance on when to use this tool versus alternatives. It does not mention prerequisites, when a three-point setup is appropriate, or that it might be preferred over manual light creation or other lighting tools. The description is purely functional with no contextual advice.

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