Status overview

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

Annotations cover the safety profile (readOnlyHint=true, openWorldHint=true), and the description adds genuinely useful context by enumerating what the aggregate contains, which is not derivable from the annotations. It does not mention rate limits, pagination, or whether incident lists are truncated, which slightly limits full transparency.

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 well-formed sentence that front-loads the core value proposition ('One-call answer to is anything down right now?') and then enumerates the payload. No filler or redundancy.

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 carries the return-value burden, and a one-parameter read-only tool needs little else. Minor gap: it does not indicate result size limits or completeness guarantees for the aggregated incident/maintenance lists.

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 a single parameter with 100% schema description coverage, so the schema already documents pageId and its source (list_status_pages). The description adds nothing about the parameter, so the baseline of 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 exactly what the tool returns: overall state, components grouped by status, open incidents with their latest update, and upcoming/in-progress maintenance. This composite scope is clearly distinguishable from sibling read tools like list_components, list_incidents, and list_maintenances, which return single resource types.

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 framing 'One-call answer to is anything down right now?' gives a clear context for use and implicitly recommends it over making several sibling calls. It stops short of explicitly naming those alternatives or stating when not to use it (e.g., when detailed per-incident data is needed).

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