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

Annotations already declare this is a non-read-only, non-destructive, non-idempotent write. The description adds that the rating feeds other agents ('so the next agent shops by measured utility'), which is real behavioral context about the side effect being publicly consumed. It says nothing about permissions, re-rating/idempotency semantics, or rate limits.

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?

It is a single front-loaded sentence with no padding, which is good, but the compressed phrasing ('sealed page', 'shops by measured utility') trades clarity for brevity in a way that makes the tool harder to parse than it needs to be.

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?

For a 6-parameter write tool with 0% schema coverage and no output schema, the definition is thin: it never explains what a 'sealed page' or slug is, what job_id ties to, or what happens after a rating is recorded. Annotations cover only the safety profile, so the remaining behavioral and parameter burden is largely unmet.

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?

Schema description coverage is 0%, so the description must carry parameter meaning. It does explain strength (1–5) and names the optional useful/accurate/note fields, but leaves slug (the page identifier) and job_id entirely undefined, and never clarifies that accurate is itself a 1–5 integer or that useful is boolean.

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 identifies a rating action (strength 1–5) on a page, so the core verb+resource is inferable, but the jargon 'sealed page' and 'shops by measured utility' obscures what is actually being rated and for whom. It does not distinguish this from siblings like attest or match, which could plausibly cover similar evaluation behavior.

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?

There is no explicit statement of when to call this versus alternatives such as attest. Usage is only implied by 'a page you used' and the downstream-consumer remark, with no exclusions or prerequisites.

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