set_device_parameter

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

No annotations are provided, so the description must disclose behavioral traits. It only mentions value clamping but omits side effects, return value, error conditions, or authorization requirements. For a mutation tool, this is insufficient.

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 concise (two sentences plus a bullet list) and front-loads the purpose. However, the bullet list is incomplete, missing critical parameters, which reduces effectiveness.

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 5 required parameters and no output schema or annotations, the description is incomplete. It fails to explain track_index and device_index, does not mention preconditions, and provides no details on return values or errors.

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 description adds meaning for 'parameter' (name or index) and 'value' (clamped), but omits track_index, device_index, and ctx. With schema coverage at 0%, the description should cover all parameters; it only covers 2 out of 5.

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 states 'Set a device parameter's value' which clearly indicates the action (set) and resource (device parameter). However, it does not explicitly differentiate from siblings like set_device_active or get_device_parameter, but the purpose is sufficiently 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?

The description mentions to use list_device_parameters to find the parameter name/index and notes value clamping, but provides no guidance on when to choose this tool over alternatives. No exclusion criteria or prerequisites are stated.

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