send_command

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

No annotations are provided, so the description alone must disclose behavioral traits. It does not state that this is a mutating operation, whether commands are asynchronous, if there are side effects, or what the return value is. The examples hint at state changes but the description lacks explicit 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 front-loads the main action and provides illustrative examples. It is concise and easy to scan, though not particularly rich in detail.

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 3 parameters, one nested object, no output schema, and no annotations, the description covers the core purpose but omits expected details like return behavior, side effects, or failure modes. It is minimal but adequate for simple command dispatch.

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?

Schema coverage is 100%, so all parameters are already described in the input schema. The description adds example actions (relay.on, led.blink, set a value) that align with the schema's 'action' description but does not add deeper semantics beyond that.

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 a clear action ('Send a command to a device') with concrete examples (turn on a relay, blink an LED, set a value), which distinguishes it from sibling read/listing tools. However, it does not explicitly differentiate from push_rules or other control-adjacent tools.

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 tool's intended use is implied by 'send a command' and the examples, but there is no explicit guidance on when to use this versus alternatives like read_device or push_rules. No exclusions or prerequisites are mentioned.

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