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

Annotations already declare readOnlyHint=false and destructiveHint=false, so the safety profile is covered. The description adds a real ownership/authorization constraint ("a report you submitted") but does not say whether transitions are reversible, whether 'done' is terminal, or what happens if the report is already in the target state.

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 scope flag ("Internal.") front-loaded and zero filler. Sizing is appropriate for a trivial two-parameter mutation.

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 simple two-required-parameter tool with full schema coverage and no output schema, the description is minimally sufficient. However, it omits transition rules (idempotency, terminality of 'done', failure modes) that an agent needs to call this mutation reliably.

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%, so both parameters and the allowed status values are already documented in the schema, making the description's restatement of 'reviewed or done' redundant. The only added semantic value is the ownership constraint on report_id.

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 (set), resource (report status), and the exact target states (reviewed or done), which clearly separates it from siblings like update_reward_status, update_program_status, or send_report. It lacks explicit sibling naming, 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?

"Internal." plus "a report you submitted" implies the usage context and ownership precondition, but there is no explicit when-to-use guidance relative to send_report, delete_report, or list_my_reports. The agent must infer the workflow position.

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