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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so the description is not the sole source of the safety profile. It does add value beyond them by stating that it 'cannot clear stored reports' (routing the agent elsewhere for deletion) and by noting the 'first-party' scope of the data collected.

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?

Three sentences, front-loaded with the purpose before the return contents and the behavioral caveat; each sentence carries information. The phrase 'This public OpenAI operation' is mild filler, but nothing is redundant.

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, return values need not be enumerated, and annotations cover the read-only/idempotent profile. The main remaining gap is that the three undocumented parameters receive no elaboration, which for a zero-coverage schema leaves the agent guessing about limit and server.

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 schema supplies no meaning for site, limit, or server. The description only loosely gestures at the site parameter ('one of the user's managed sites') and says nothing about limit or server, leaving the description unable to compensate for the coverage gap.

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?

States a specific verb (Reads) and resource (first-party Content-Security-Policy violation reports) scoped to 'one of the user's managed sites', plus the return shape (grouped directives, blocked origins, counts, example pages). This cleanly separates it from ad-report siblings like get_report or client_report, so an agent can identify it without opening the schema.

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 only implied by the phrasing 'reports collected for one of the user's managed sites' – there is no explicit when-to-use, no when-not-to-use, and no named alternative for related tasks such as clearing or listing reports. Adequate context but guidance must be inferred.

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