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

No annotations are provided, so the description carries the full behavioral burden. The wording 'what has happened' implies a read-only, historical lookup rather than a mutating action, but it does not explicitly state side-effect-freedom, authorization requirements, or possible response behaviors. This is minimally acceptable but not fully transparent.

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?

The description is a single concise sentence with no filler. It front-loads the core concept ('what has happened to a settled payment') and ends with the key input source (`status_url` on its receipt). Slight awkwardness in phrasing prevents a 5, but it is appropriately sized and structured.

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?

With one required parameterhare and an output schema present, the description does not need to explain return values. It adequately names the input source and settled-payment precondition, but it omits contextual details such as whether this is safe to call repeatedly, whether the `status_url` expires, or how this relates operationally to `settle_escrow_payment` and `verify_escrow_receipt`.

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. It adds useful meaning by explaining that `status_url` comes from the payment receiptcars, but it does not provide details about URL format, how to extract it, or what the tool expects beyond the schema's plain string type. The single-parameter design reduces the risk, but the semantics are only partially enriched.

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?

The description clearly identifies a specific action: checking what happened to a settled payment using the `status_url` from its receipt. It distinguishes itself from sibling tools like `settle_escrow_payment` and `verify_escrow_receipt` by focusing on status/history of an already settled payment, though the phrasing 'what has happened' is somewhat indirect.

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 implies the tool is meant for post-settlement inquiries: the payment must be settled and the caller must have the receipt's `status_url`. It does not explicitly name alternatives or state when not to use this tool, so usage context is clear but exclusion/routing guidance is missing.

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