ExternalFulfillmentShipments_generateShipLabels

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

No annotations are provided, so the description carries the full burden. It discloses that the tool operates in a remote Kuudo deployment and both generates and retrieves labels, but it does not explain side effects, costs, idempotency, prerequisites, or whether generation mutates shipment state.

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, but 'Catalog entry.' is filler that does not help an agent act. The useful deployment context is placed first, yet the sentence framing is slightly disjointed.

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?

With no annotations, no output schema, and an empty input schema, the description needed to provide more operational context. It fails to specify how the shipment is identified, what the returned labels look like, or what side effects generation may have, leaving an agent under-informed.

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 parameters and 100% schema description coverage, so the baseline is 4. The description adds a conceptual reference to 'the shipment you specify,' but since no parameters are declared, there is little more it could meaningfully add.

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 a specific action and resource: 'Generate and retrieve all shipping labels for one or more packages in the shipment you specify.' This is distinct from related label tools. However, it does not explicitly differentiate itself from sibling tools like ShippingLegacy_retrieveShippingLabel or ExternalFulfillmentShipments_retrieveInvoice.

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 'Runs in your Kuudo deployment, not here' provides some environmental context but does not tell the agent when to choose this tool over alternatives. There is no mention of when not to use it or which sibling tool should be used instead for related label operations.

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