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

Annotations already declare readOnlyHint, idempotentHint, non-destructive, closed-world, so the safety profile is covered. The description adds genuinely new context beyond that: the weekly refresh cadence (staleness) and the 'Free' cost signal. However it doesn't describe output shape or size, so it stays at solid-not-rich.

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?

One dense, front-loaded sentence listing coverage areas, followed by a short sentence pairing the refresh cadence with the alternative and cost. No filler, though the first sentence runs long as a list.

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 categories so an agent knows what to expect. It is largely complete for a simple read tool, leaving only the exact response structure unspecified.

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?

Single parameter with 100% schema description coverage, including the explicit allowed value, so the schema carries the semantics. The description adds nothing about the parameter, which matches the baseline of 3 when the schema is fully documented.

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 exactly what the tool returns — sitemap found, whether it lists published posts, GSC errors, Bing submissions, and a fix list — which is specific and distinguishable from the sibling recheck_indexing. It reads as a noun phrase without an explicit verb, but the resource and scope are unambiguous.

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?

It states the data is refreshed weekly and explicitly routes to recheck_indexing for an immediate refresh, giving a clear when-to-use-this vs. that distinction. It does not cover exclusions or prerequisites, but the alternative is named with its triggering condition.

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