set_cycles_device

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

The annotations indicate a destructive write operation (destructiveHint=true, readOnlyHint=false), but the description adds no context about side effects, such as affecting rendering performance or needing a compatible GPU. It only repeats the action and lists options, without explaining consequences.

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, front-loaded sentence with no wasted words. It is appropriately sized for the simple tool it describes.

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 one-parameter setter with a well-defined value list, the description covers the core semantics, but omits when to use it and what effects setting the device has. It is minimal but not inadequate, leaving room for context.

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 provides zero description for the 'device' parameter (coverage 0%), but the description compensates by enumerating the accepted values (CPU/GPU/OPTIX/CUDA/HIP/METAL). This gives the agent the necessary vocabulary to make a valid choice, though it does not explain the meaning or trade-offs of each option.

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 ('Atur device Cycles' meaning 'Set Cycles device') and lists the supported device options (CPU/GPU/OPTIX/CUDA/HIP/METAL), making the tool's purpose unambiguous. It could be improved by explicitly mentioning the Cycles render engine's compute device, but the name and options make that clear.

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 provided on when to use this tool versus alternatives like set_render_engine or set_render_samples. It does not mention prerequisites (e.g., GPU availability) or contrast with other device-related tools.

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