ebay_bulk_cancel_packages

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

With no annotations, the description fully bears the burden of behavioral disclosure. It mentions only the basic action; lacks details on side effects (e.g., what 'cancel' entails), idempotency, error handling, rate limits, or permissions. This is insufficient for a bulk mutation tool.

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?

A single sentence with no redundancy or unnecessary detail. It is efficient and front-loaded.

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?

Given the tool's complexity (bulk operation, nested object, no output schema), the description is incomplete. It omits information about the request structure, success/error semantics, and how it differs from similar tools like 'ebay_bulk_delete_packages'. An agent would lack sufficient context to invoke it correctly.

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?

Although schema description coverage is 100%, the parameter description 'Bulk cancel request data' is vague. The tool description adds no further meaning; it does not specify the required structure or content of the nested object. Baseline 3 is not earned because the description fails to clarify the expected input.

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 (cancel), the resource (packages), and the bulk nature. It distinguishes from the sibling 'ebay_cancel_package' (single cancel) by implication, making it unambiguous for an agent to select.

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 explicit guidance on when to use this tool versus alternatives like 'ebay_cancel_package' for single operations or 'ebay_bulk_delete_packages' for deletion. The description provides no context on prerequisites, limitations, or when it should be avoided.

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