ebay_create_bundle

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

No annotations are provided, so the description carries full burden. It only states the purpose but fails to disclose behavioral traits like what the bundle consists of, required permissions, side effects (e.g., packages are grouped), or how the output is used later. This is insufficient for a tool that creates a composite entity.

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, but it sacrifices informativeness for brevity. It omits crucial details about parameters and behavior, making it under-specified rather than concise.

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 (1 parameter with unknown structure, no output schema, no annotations), the description is severely incomplete. An agent cannot confidently use this tool without more information about the request body format and expected outcome.

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 one parameter 'body' with no defined properties (additionalProperties: true) and 0% schema description coverage. The description does not elaborate on what the body should contain (e.g., list of package IDs, shipping details), leaving the agent completely in the dark about how to construct the request.

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 states 'Create a bundle of packages for international shipping', which clearly identifies the verb (create), resource (bundle of packages), and context (international shipping). It distinguishes this tool from related siblings like ebay_create_package (creates a single package) and ebay_get_bundle (retrieves a bundle).

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 provides no guidance on when to use this tool versus alternatives like ebay_create_package or when not to use it. There is no mention of prerequisites, such as needing to create packages first, or scenarios where 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.