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

No annotations are supplied, so the description carries the full behavioral burden, and it does not state what gets created, whether the cart persists or expires, whether items are reserved, or what happens if the same cart is created twice. Only the request payload shape is hinted at, with no mention of authentication or side effects.

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?

It is very short with no filler, but the second sentence is a cryptic pseudo-schema fragment with no framing, and the switch from Danish to an English payload literal makes it harder to parse. Front-loading is fine; explicitness is not.

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 tool with a nested untyped object parameter, no output schema, and no annotations, the description should do considerably more. It partially compensates by sketching the cart object, but leaves the meta parameter, validation rules, success behavior, and error cases unaddressed.

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 50% and the two top-level parameters are untyped objects, so the description's payload skeleton (line_items with item.id and quantity, context.postal_code) adds real meaning beyond the schema. However it ignores the meta parameter entirely and does not say whether quantity defaults, what value shapes postal_code accepts, or whether line_items may be empty.

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?

"Opret kurv" gives a verb+resource, but it is essentially a Danish restatement of the tool name create_cart rather than a distinct explanation of purpose. There is no differentiation from siblings such as create_checkout or update_cart, so an agent learns little beyond what the name already says.

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?

No when-to-use, when-not-to-use, or alternative guidance is given. With siblings like create_checkout and update_cart present, the definition never says why an agent would create a cart rather than go straight to checkout, nor what prerequisites (e.g. an existing variant id) are needed.

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