agent_checkout_quote

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

No annotations are provided, so the description carries the behavioral burden. It discloses a key trait—the quote is valid for 15 minutes and locks a price—but does not mention side effects, authorization needs, expiration behavior, or what happens if the cart changes.

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?

A single front-loaded sentence that conveys the action, resource, and key constraint with no wasted words. It is concise without being a tautology.

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?

The core information needed to invoke the tool is present: create a quote from a cart with a 15-minute price lock. However, there is no output schema, no return-value description, no expiration behavior, and no relationship to checkout_prepare or checkout_pay, leaving gaps for an agent deciding how to complete checkout.

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 0%, but the description clarifies that cart_id refers to the agent cart being quoted. It does not explain how to obtain cart_id or any expected format, but for a single simple parameter this is minimally adequate.

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 names a specific verb ('Create'), a concrete resource ('locked price quote'), and a source ('agent cart'). It is clearly distinct from checkout pay/status/fulfill, though it does not explicitly differentiate itself from agent_checkout_prepare.

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?

There is no guidance on when to use this tool versus sibling checkout tools, nor any prerequisites such as needing a prepared cart. The only usage signal is implicit through 'from agent cart'.

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