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

Annotations already carry readOnlyHint=false, destructiveHint=true, and idempotentHint=true. The description adds workflow behavior annotations cannot express: the two-step approval gate ('Returns an AurasPay approval URL first', 'No change occurs until separate human approval') and the idempotent-result retrieval instruction ('Reuse the identical requestId and details'). These are substantive, non-redundant disclosures and are consistent with the annotations.

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?

Four short sentences, each earning its place: purpose, scope boundary, approval workflow, and retry behavior. The primary verb/resource is front-loaded and there is no filler or repetition of schema contents.

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 two-step destructive operation, the description covers the approval URL, the no-change-until-human-approval state, and the exact method to retrieve the outcome. With an output schema present and annotations covering mutability, destructiveness, and idempotency, nothing an agent needs to call it correctly is missing.

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 0%, so the description must compensate for parameter meaning, and it barely does. It names 'requestId and details' only as the reuse key for retrieving results, adding no semantics about what the values mean; the enum values and UUID format remain entirely schema-borne.

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 and resource: 'Remove one previously verified payout wallet from this merchant account.' The merchant-account scope and the explicit boundary ('does not revoke access inside the wallet provider') distinguish it from the wallet ownership challenge/verify siblings and from provider-level actions.

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?

The description gives clear implied usage context (remove a payout wallet from the merchant account) and a useful scope boundary note that provider access is not revoked. However, it names no alternative tool and provides no explicit when-to-use or when-not-to-use conditions, leaving sibling differentiation to inference.

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