Prepara revisione checkout

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

With no annotations provided, the description carries the full burden. It discloses that the tool navigates the browser and returns a summary, and importantly clarifies that it does not place or confirm the order. However, it does not mention prerequisites such as being logged in, potential side effects on cart state, or the structure of the returned summary.

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 extremely concise, consisting of two short sentences. The first sentence states the primary action and output, and the second clarifies what it does not do. There is no unnecessary elaboration or repetition.

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 simple, no-parameter tool with no output schema, the description adequately covers its purpose and non-behaviors. It mentions returning a summary, which partially compensates for the missing output schema. However, it lacks details about return format or any side effects, leaving some gaps for an agent.

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 tool has zero parameters, and the schema is trivially 100% covered. Per the guidelines, a zero-parameter tool gets a baseline score of 4, and the description adds no parameter-specific details because none are needed.

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 function: it brings the browser to the cart and returns the summary, while explicitly noting it does not place or confirm the order. This distinguishes it from sibling tools like add_to_cart, remove_from_cart, and get_cart by focusing on the checkout preparation 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 for reviewing the cart before finalizing a purchase, but it does not explicitly state when to use this tool versus alternatives like get_cart. It does provide a 'when not to use' by clarifying that it does not place/confirm orders, but no direct alternative is named.

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