ebay_get_shipping_fulfillments

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

No annotations are provided, so the description carries full burden. It correctly declares OAuth scope requirements, indicating a read operation. However, it lacks details on rate limits, error handling, or pagination behavior for listing all fulfillments.

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 extremely concise, consisting of two sentences that front-load the purpose and then provide security requirements. No unnecessary information.

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 tool has a single parameter and no output schema. The description covers the essential purpose and security. It does not describe the return format (e.g., a list of fulfillment objects), but this is a minor gap for a retrieval operation.

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 schema already fully describes the single parameter 'orderId' with a clear description. The tool description adds 'shipping' context but no additional semantics beyond what the schema provides. With 100% schema coverage, a baseline of 3 is appropriate.

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 ('Get all shipping fulfillments') and the resource ('for an order'). It is distinct from sibling tools like 'ebay_get_shipping_fulfillment' which targets a single fulfillment.

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 specifies required OAuth scopes and includes a documentation link, but does not explicitly state when to use this tool vs. alternatives (e.g., when to get a single fulfillment). Usage is implied by the name and context.

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