Report observed device state to the NetGuard watchdog

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

With no annotations, the description carries the full burden and does so well: it discloses that values are compared to the last brokered state, that unbrokered changes are treated as tampering and out-of-limits states as unsafe, and that either outcome raises an audit-chained incident and quarantines the device. Remaining gaps are secondary traits such as idempotency, return value, and whether repeated identical reports re-trigger incidents.

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 tight sentences: the first states the action, the second front-loads the decision logic and consequences. No filler, and the highest-stakes information (incident plus quarantine) lands before the reader stops.

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 three-parameter tool with no annotations and no output schema, the description covers the important unknowns: what the inputs are compared against and what side effects follow. It stops short of saying what the call returns (incident identifier, verdict, quarantine status) or whether it is safe to retry, which an agent deciding how to react would want.

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 description coverage is 0%, so the description must compensate, and it only partly does: it maps deviceId to 'a protected device' and the two numeric fields to 'observed setpoint and temperature'. It adds no units, ranges, or format expectations beyond what the parameter names already imply.

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 specific verb and resource: report a protected device's observed setpoint and temperature to the NetGuard watchdog. It implicitly separates itself from sentinel_device_command by contrasting 'observed' state with 'brokered' state, though it never names that sibling directly.

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 rather than stated: an agent can infer this is the reporting path for device telemetry, and the description clarifies what the watchdog does with it. There is no explicit when-to-use versus when-not-to-use guidance or reference to alternatives such as sentinel_device_command or sentinel_enforcement_plan.

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