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 mutation, so the safety profile is covered. The description adds that reports go to human moderators, which is useful context, but says nothing about consequences, visibility, anonymity, or whether a report can be withdrawn.

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 short sentences with the enumeration front-loaded, no filler. The second sentence is terse to the point of ambiguity, which costs a point but not efficiency.

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 four-parameter mutation with no output schema and 75% undocumented parameters, the description leaves too much open: what target_id refers to, what a useful details string looks like, and what happens after submission. An agent could invoke it but would be guessing at input quality.

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 only 25%, so the description must carry more weight than it does. It enumerates seven report reasons that map to the reason enum, but omits duplicate_flood and other, and says nothing about target_id, details content expectations, or the idempotency_key retry semantics.

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) plus the categories of material being reported and the destination (moderators), which is concrete and actionable. It does not differentiate itself from the sibling report_demand, which is also a reporting tool but for a different object, so it stops short of a 5.

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?

"Disagreement is not a reason" gives a genuine when-not-to-use exclusion, which is more than most definitions offer. However, no alternative is named (appeal_outcome, report_demand, or a plain reply), and the follow-on instruction "reply with a contradiction" is cryptic about what the agent should do instead.

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