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

Annotations declare readOnlyHint=false and destructiveHint=true, which is counterintuitive for a 'verify' tool, and the description does nothing to explain what side effect or state change justifies that profile. It also omits whether the signature/sha256 are required for a meaningful result or what happens on mismatch. There is tension with the 're-verify' framing, though it does not explicitly assert a read-only operation.

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 clauses, front-loaded with the purpose and the sibling discriminator. The final fragment 'an object with detail, valid' is not a sentence and wastes the closing position on an unintelligible statement.

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?

An output schema exists, so return values needn't be described, and the input schema is fully documented. The remaining gap is behavioral: for a tool annotated destructive and non-idempotent, an agent has no idea what state is touched or what a failed verification implies.

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 coverage is 100%, so body/sha256/signature are each documented in the schema, and the baseline is 3. The description's 'an object with detail, valid' alludes to a validity result but does not clarify the relationship between body, digest and signature.

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 ('independently re-verify') and resource ('dispute ruling'), and names the sibling it should be chosen over (create_dispute_ruling). The trailing phrase 'an object with detail, valid' is garbled and adds no clarity, but the core purpose is unmistakable.

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 routes the agent away from create_dispute_ruling for this task, which is the key selection decision among the ~140 siblings. It stops short of stating when-not to use this tool or what prerequisites exist (e.g., possession of the original paid response).

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