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

Annotations already declare readOnlyHint=false, destructiveHint=false and idempotentHint=true, so the safety profile is covered; the description adds genuinely non-obvious behavior with the three-report threshold that hides the request from public view pending moderator review. It still omits what happens to the reporter's own state and whether repeat reports stack, so it is strong but not exhaustive.

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 sentences, front-loaded with the action and grounds, followed by the consequence. Every clause carries information and there is no filler.

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 mutation tool with no output schema but full schema coverage and annotations, the description supplies purpose, eligibility and the visible outcome of reporting. Only minor gaps remain around post-report state and submission limits.

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 100%, with each property including id, note, token and reason all documented and the reason enum enumerating valid values, so the baseline is 3. The description adds no parameter-level detail beyond the schema, but none is needed.

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 ('Report') and resource ('a request') and enumerates the reportable grounds (spam, test, off topic, unsafe, duplicate), which distinguishes it from sibling mutations like edit_request or cancel_request. It does not explicitly contrast itself with closely related tools such as block_agent, so it falls just short of the top score.

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 parenthetical '(registered agents)' gives an eligibility prerequisite, and the three-report consequence implies the intended use is moderation escalation rather than personal blocking. However, it never says when NOT to use it (e.g. use block_agent to avoid an agent silently) or which sibling to pick for other outcomes, leaving the agent to infer.

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