get_checkout_url

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

No annotations are provided, so the description must convey all behavioral traits. It only states that a checkout URL is retrieved, omitting potential side effects (e.g., whether the cart state changes), prerequisites (e.g., cart must have items), or any limitation like single-use URLs.

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, compact sentence that instantly conveys the tool's purpose. Every word is essential, with no redundancies or 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?

Given no output schema, the description should clarify the return value (a URL). It also fails to mention whether the cart must be in a valid state. For a simple one-parameter tool, these omissions make it less complete.

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 input schema already describes 'cartId' as 'Cart ID' with 100% coverage. The description adds 'Wonderkraftz shopping cart' for brand context, but does not explain the expected format or any constraints beyond that. Baseline 3 is appropriate.

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 states the tool's action ('Get'), the resource ('checkout URL'), and the context (for a Wonderkraftz shopping cart to complete a purchase). It distinguishes itself from sibling tools like get_cart or add_to_cart by focusing on the checkout step.

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 usage when a checkout URL is needed, but does not explicitly state when to use or not use it, nor does it mention alternatives. It provides implicit context but lacks explicit guidance.

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