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

The description goes beyond annotations by explaining the one-time nature of the code, the strict binding to the original context/actor, and the fact that gaps are preserved and final contents are not approved. This complements the destructive/idempotent hints rather than repeating them. No contradiction with readOnlyHint=false or destructiveHint=true.

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 short sentences, front-loaded with the main action, followed by security constraints and a consequence clause. Every sentence adds information; 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 4-parameter mutation with a nested object and no output schema, the description covers purpose, authorization, rejection conditions, and outcome boundaries. It doesn't describe return values or detailed error cases, but the annotations and schema cover idempotency and retry behavior.

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?

The description gives meaningful operational meaning to 'code' (one-time, reviewer-supplied, never retrieve) and implies constraints on challengeId/actor. However, it does not explain decisionRevision's outputJobId/payloadHash or how to obtain them, and schema coverage is only 25%, so it only partially compensates.

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 ('Confirm'), a precise resource ('exact proposed bid decision'), and the mechanism (one-time code from reviewer). It is clearly distinct from sibling tools like request_bid_decision or confirm_review, and the closing clause clarifies it does not approve final contents.

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?

Explicitly conditions use on a reviewer-supplied one-time code and instructs the agent never to retrieve it. It also gives rejection criteria (changed context/qualification, other actors, old codes), which tells the agent when not to invoke. It doesn't name an alternative tool explicitly, but the context is clear enough.

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