Shipping_purchaseShipment

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

With no annotations, the description carries the full burden. It does disclose that this is a purchasing action, executes in a remote Kuundo deployment, and returns details and documents. However, it omits important behavioral context such as financial charge, irreversibility, prerequisite steps like obtaining rates, and authentication expectations.

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 to the point, but the opening 'Catalog entry.' is non-informative filler and occupies the front-loaded position without adding value. The remaining sentences are efficient, but not every sentence earns its place.

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 an agent trying to invoke this tool correctly: no input payload guidance, no differentiation from similar purchase tools, no side-effect warnings, and no output structure. The empty schema with additionalProperties true makes the missing payload context especially problematic.

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 parameters and allows additionalProperties, so the schema provides no field-level guidance. With 0 parameters, the baseline is 4, and the description is not required to enumerate parameters, though a note about expected purchase payload fields would be helpful given additionalProperties is true.

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 that the tool purchases a shipping service and returns purchase-related details and documents, so the core verb and resource are identifiable. However, it does not distinguish itself from Shipping_directPurchaseShipment, Shipping_oneClickShipment, or ShippingLegacy_purchaseShipment, and the opening 'Catalog entry.' adds noise.

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?

There is no guidance on when to use this tool versus the many purchase/shipment siblings. 'Runs in your Kuundo deployment, not here' is environment context, not usage guidance, and no prerequisites or alternative conditions are mentioned.

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