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

Annotations already declare idempotentHint=true, destructiveHint=false, and openWorldHint=true, so the safety profile is covered. The description adds a genuinely non-obvious behavioral trait the annotations cannot express: resuming re-checks quota and may be refused if the tier is now full, which tells the agent to expect a possible failure path.

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 short sentences with zero filler; the core action is front-loaded and the caveat follows immediately. Every clause earns its place.

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 an output schema present and annotations covering idempotency and safety, the description only needed to add behavioral context, and it flags the quota-refusal path. It does not state that the alert must currently be paused or how a refusal surfaces, but those are minor omissions for a single-parameter tool.

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?

Only one parameter exists and schema description coverage is 100% – the schema already explains that alert_id comes from list_my_alerts or create_alert. The description adds nothing about the identifier, so the baseline 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 states a specific verb+resource ('Resume monitoring') and the title pins it to 'a paused alert', which separates it from resume_all_alerts and resume_itinerary. However, 'monitoring' alone is slightly abstract and the description never explicitly names the alert as the resumed object, so it relies on the title to close the gap.

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 by the verb (resume a paused alert) but the description gives no explicit when-to-use or when-not-to-use guidance, and does not route the agent to pause_alert, resume_all_alerts, or update_alert as alternatives. The refusal condition is a precondition, not usage routing.

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