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

Beyond the annotations, it discloses that the change is logged, that the caller needs a key authorized to act, and that approval mode makes the change wait for an admin while autonomous mode applies it immediately. This adds the permission and approval semantics the annotations do not cover, and nothing contradicts idempotentHint/destructiveHint=false.

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 dense sentences with the lifecycle action front-loaded and no filler, though the telegraphic 'Needs: a key that may act' phrasing is slightly compressed and takes a re-read. Overall efficient for the amount of routing and permission context it packs in.

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?

Covers purpose, sourcing of the id, alternative tool, logging, authorization, and the approval-vs-autonomous outcome. No output schema exists, but the description gives enough about what happens after the call (logged; may wait for approval) that an agent can invoke it correctly.

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% and the enum values are already explained in the schema, so the description adds little parameter meaning beyond repeating the four statuses. The only extra hint, that finding_id comes from list_findings, is also present in the schema, so baseline 3 applies.

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 (change) plus resource (finding's lifecycle status) and enumerates the four target states, so scope is unambiguous. It also explicitly separates itself from record_action, which handles work on a signal rather than the finding's status.

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?

Gives an explicit trigger ("when your human has decided what a finding is"), names the alternative tool and the condition that selects it (record_action for work on a signal), and tells the agent where the finding_id comes from (list_findings). Both when-to-use and the alternative routing are spelled out.

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