get_device_status

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

No annotations are supplied, so the description carries the behavioral burden. It discloses the payload categories (a read-style operation, by implication), but says nothing about permissions, freshness/latency of 'live', rate limits, or behavior for an unknown device_id.

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?

A single front-loaded sentence with zero filler; the scope ('one device') comes before the field list. Slightly list-heavy, but every item named is informative given there is no output schema.

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 usefully enumerates the returned data categories, which is the main completeness gap it must fill, and it does so adequately. It stops short of covering error/empty-result behavior or auth requirements, which keeps it out of the top tier.

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% for the single required device_id parameter. The description adds only 'for one device', implying the ID selects a single device rather than a list, but gives no format, source (e.g. list_devices), or error behavior, so it does not compensate for the coverage gap.

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?

States a specific verb ('Get') and resource ('live hardware status for one device') and enumerates what is returned: battery voltage/current, charge state, comms info, error data. The word 'live' implicitly separates it from the sibling get_device_battery_history, though no sibling is named explicitly.

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?

There is no explicit when-to-use or when-not-to-use statement, but 'live' implies the real-time snapshot case versus the historical sibling get_device_battery_history. The agent can infer the routing, but nothing is stated outright.

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