willys_get_cart

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

With no annotations provided, the description carries the full burden of behavioral disclosure. However, it only states the action without revealing whether the operation is read-only, requires special permissions, or has any side effects. The implicit read nature of 'get' is too minimal to qualify as transparent.

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, concise sentence with no redundant words. It is front-loaded with the action and resource. However, it is so brief that it borders on under-specification, though it does not commit the tautology seen in poorly written descriptions.

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 tool has no output schema, no annotations, and one parameter, yet the description does not explain what the tool returns or what constitutes cart content. Given that the description is the sole source of context, it is incomplete and leaves the agent without essential information about the tool's behavior.

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 a single sessionId parameter, and schema description coverage is 0%. The description does not mention this parameter or explain its purpose, leaving the agent to infer that it is a session identifier. The description fails to compensate for the lack of schema 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 clearly states the tool's action ('Hämta' – retrieve) and resource ('kundvagnens innehåll' – cart contents). This distinguishes it from sibling tools like willys_add_to_cart and willys_remove_from_cart, which perform different operations on the same resource.

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 provides no guidance on when to use this tool versus alternatives. It does not mention any prerequisites, such as requiring an authenticated session, nor does it explain why one would use this instead of willys_get_orders or similar.

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