homey_get_device

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

With no annotations, the description carries the burden of behavioral transparency. The word 'Get' implies a read-only operation, but the description does not disclose potential error behavior, required permissions, or what happens if the ID is invalid, leaving some ambiguity.

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, concise sentence that front-loads the core purpose. Every word is necessary, with no redundant information or filler.

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 simple get-by-ID tool with one fully documented parameter, the description is mostly adequate. However, it does not specify what 'detailed information' includes (e.g., name, capabilities, state), and with no output schema, that remains undefined. Given the low complexity and clear scope, this is a minor gap rather than a critical flaw.

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 input schema fully describes the single parameter 'id' with the line 'The ID of the device', so schema coverage is 100%. The description adds no extra contextual details about the parameter, so it does not exceed the baseline.

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 uses a specific verb ('Get') and resource ('detailed information about a specific device by ID'), clearly distinguishing it from sibling tools like homey_list_devices or homey_find_devices_by_zone. It unambiguously identifies the operation as retrieving a single device by its identifier.

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 provides no guidance on when to use this tool versus alternatives. It does not mention alternatives such as homey_list_devices for finding devices or homey_get_sensor_readings for specific capabilities, nor any exclusions or prerequisites.

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