iot_device_status

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

With no annotations, the description carries the burden of behavioral disclosure. It adds 'connects to device to check,' indicating a live network action, which is useful. However, it does not disclose potential side effects, timeouts, or what happens if the device is unreachable, leaving gaps in 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 one concise sentence that front-loads the key action and includes a parenthetical clarification. Every word contributes to meaning; there is no redundancy 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?

The tool lacks an output schema and annotations, so the description must explain what 'detailed status' returns. It does not specify the fields, structure, or possible values, leaving the agent unsure about what information it will receive. While the purpose is clear, the lack of return-value information makes the description incomplete for safe invocation.

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 covers the single parameter 'device_id' with a description ('Device ID from inventory') at 100% coverage. The tool description adds no extra parameter meaning beyond the schema, so the baseline of 3 applies.

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 tool's function: 'Get detailed status of a specific device,' using a specific verb and resource. It distinguishes itself from siblings like iot_list_devices (listing) and iot_all_status (all devices) by emphasizing 'specific device' and noting it connects to the device, which adds unique context.

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?

Usage is implied: for checking the status of a single device. However, there is no explicit guidance on when to prefer this over alternatives such as iot_all_status or iot_test_connection, and no exclusions or prerequisites are mentioned. The one-line description offers context but no comparative advice.

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