FulfillmentInbound_createMarketplaceItemLabels

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

With no annotations, the description carries the full burden of behavioral disclosure. It states the core create action, but does not disclose side effects, permissions, idempotency, error behavior, or output. The 'Catalog entry' and 'not here' phrasing adds some context but remains vague about what actually happens when invoked.

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 short and mostly front-loaded, with the core action in the second sentence. The opening 'Catalog entry. Runs in your Kuudo deployment, not here' is somewhat cryptic but carries deployment context, so the length is acceptable.

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 description is incomplete for a mutation tool with no annotations and no output schema. It does not explain input requirements, label format, prerequisites, or what the caller should expect in response. The deployment caveat is mentioned but not elaborated.

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 declares zero properties, so the zero-parameter baseline applies. The description still adds meaning by naming the logical inputs 'marketplace' and 'list of MSKUs', which are absent from the schema and are essential for understanding what the tool operates on.

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 action: 'creates labels for a list of MSKUs' for a given marketplace, with a specific verb and resource. It is understandable in isolation, though it does not explicitly differentiate itself from label-related siblings like FulfillmentInboundV0_getLabels or ExternalFulfillmentShipments_generateShipLabels.

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 offers no guidance on when to use this tool versus alternatives, and no alternative tools are named. The statement 'Runs in your Kuudo deployment, not here' hints at a deployment constraint but does not explain when the tool should or should not be invoked.

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