place_order

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

No annotations are provided, so the description carries full responsibility for behavioral disclosure. 'Place an order' implies a mutation but does not disclose important side effects such as whether the cart is cleared, whether payment is required, whether an order record is created, or what the return value will be.

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, direct sentence with no filler or repetition. Every word earns its place, and it is appropriately sized for a tool with no parameters.

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?

Without annotations or an output schema, the description needs to convey more about post-conditions and return values, but it only states the action itself. For an order-finalization tool, important behavioral context such as cart clearing, order confirmation, and error cases 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?

The input schema has zero properties and schema description coverage is 100%, so there are no parameter semantics to document. The baseline score of 4 is appropriate because the description does not need to compensate for missing parameter documentation.

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 uses a specific verb ('Place an order') and identifies the resource/scope as 'current cart items', distinguishing it clearly from sibling tools like get_cart_items, get_order_history, and add_to_cart. It conveys a finalization action rather than a query or cart modification.

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 phrase 'current cart items' implies this should be used after building a cart, but it does not explicitly state when to use it versus alternatives like apply_coupon or when not to use it. There is no mention of prerequisites or alternatives, so the guidance is implied rather than explicit.

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