get_system_package_update

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

Beyond the annotations (readOnlyHint, openWorldHint=false, idempotentHint), the description discloses that the call does NOT contact MikroTik and that latest-version may be stale or empty on devices that never checked or cannot reach the server. That caching/staleness behavior is the key trait an agent needs and is not inferable from the annotations alone.

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 sentences, front-loaded with the core purpose, followed by a tightly scoped note. Every sentence earns its place and nothing is padded.

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?

An output schema exists so return format needn't be explained, and annotations carry the safety profile; the description adds the crucial staleness caveat. The only real gap is the unexplained device parameter.

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?

There is one parameter (device) with 0% schema description coverage, and the description never explains what it selects or how to supply it. With zero compensation for the coverage gap, the agent is left to infer the meaning of the only input.

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: it 'reports the installed RouterOS version against the latest on its channel.' That is unambiguous. It does not, however, differentiate itself from the sibling list_system_packages, which an agent might plausibly confuse it with.

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 notes provide a useful usage condition — this only reads the stored result of the last check and can be stale or empty — which helps an agent decide whether the data is trustworthy. But there is no explicit statement of when to use this versus alternatives such as list_system_packages or a fresh check.

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