ebay_create_bundle

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 only states the action without mentioning side effects, permissions, idempotency, or whether the bundles can be modified after creation. The description is insufficient for an agent to understand the tool's behavior.

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 sentence that is concise and front-loaded with the key action. However, the brevity sacrifices informative detail that could be included without being verbose.

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 complexity of the input (nested object) and the lack of output schema, the description is incomplete. It does not explain what constitutes a bundle, how to structure the bundleRequest, or what the response will contain. Links to related tools like ebay_get_bundle_label are missing.

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 100% coverage with one parameter described as 'Bundle creation data'. The tool description adds the context 'for international shipping', but the parameter description remains vague. The tool description does not specify required fields within the nested object, so it adds limited semantic value beyond the schema.

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 verb 'Create' and the resource 'a bundle of packages' with the specific context 'for international shipping'. It distinguishes the tool from other create tools like ebay_create_package, though it could be more explicit about the difference between a bundle and a package.

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 guidance is provided on when to use this tool versus alternatives such as ebay_create_package or ebay_create_offer. There are no prerequisites, context for international shipping, or indications of when this tool is appropriate.

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