set_device

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

No annotations are provided, so the description must carry behavioral context. It explains brightness scale and temperature unit, but does not disclose that null parameters are likely left unchanged, nor any prerequisites or side effects of the mutation.

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?

Two sentences, front-loaded with the action and immediately clarifying ranges. No wasted words.

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?

With no output schema, the description does not state what the tool returns or any error behavior. It also omits details about omitted parameters and does not explain the 'id' parameter, leaving gaps for a tool with only three parameters.

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 parameter names and types, but the description adds semantic meaning for brightness (range and off value) and temperature (Kelvin). The 'id' parameter remains undocumented, leaving its purpose ambiguous.

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 'Control a device' and then specifies brightness and temperature ranges, making it clear the tool adjusts these two properties. The specific units and ranges distinguish it from sibling tools like set_mired or set_level, though the verb 'control' is somewhat generic.

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 explicit guidance is given for when to use this tool over alternatives such as set_level, set_mired, or toggle. The description implies usage through parameter names but lacks context or exclusions.

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