access_status

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

Annotations already declare readOnlyHint=true, openWorldHint=false, destructiveHint=false, so the safety profile is covered. The description adds that it reports on access-control enablement, blocked devices (with reasons), and active schedules—useful content beyond the annotations. It does not, however, mention whether the data is real-time vs. cached or any auth requirements, which is a mild gap given the annotation baseline.

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 sentence with no filler. It front-loads the primary question (whether Access Control is on) and then lists the other data points. Nothing is extraneous.

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 structure need not be explained. The description covers the key information categories an agent would want. It falls short of 5 only because it doesn't route to alternatives or clarify that this is a read-only snapshot, though annotations cover the safety aspect.

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?

Zero parameters, so baseline is 4. The schema coverage is 100% and there are no params to document; the description appropriately does not discuss inputs. No penalty, no extra credit possible.

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 enumerates the facts returned (Access Control on/off, blocked devices and reasons, active schedules), which implies a read of access-control status. However, the phrasing is a noun clause without a clear verb (e.g., 'get' or 'report'), and it doesn't explicitly differentiate from siblings like set_access, list_schedules, or apply_schedules. It's readable but could be mistaken for a state declaration rather than a data-retrieval tool.

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?

No when-to-use guidance, no alternatives mentioned. With siblings such as set_access, list_schedules, and device_history, an agent has no signal about when to prefer access_status over those. The description is purely descriptive of content, not prescriptive of use.

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