create_fulfillment

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states what the tool does without revealing side effects, permissions, reversibility, or what happens to the order state. The description is too minimal to inform an agent about the consequences of calling this 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?

The description is a single, concise sentence that immediately conveys the tool's function. There is no unnecessary verbosity or padding, making it well-structured and easy to parse.

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?

Despite having 4 parameters (including nested objects) and no output schema, the description offers minimal context. It doesn't explain what a fulfillment is, how it affects the fulfillment order, or what the response might contain. This is inadequate for a tool of this complexity.

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?

Input schema has 100% description coverage for all parameters, so the schema already documents each field clearly. The description itself adds no parameter-level information, which is acceptable given the high schema coverage, hence a baseline score of 3.

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 ('create') and the resource ('a fulfillment for a fulfillment order'), making the tool's purpose unambiguous. However, it doesn't explicitly differentiate itself from similar tools like accept_fulfillment_request, though the verb 'create' provides some distinction.

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. It doesn't mention prerequisites such as the fulfillment order being open, or whether it should be used after accepting a fulfillment request. Sibling tools like accept_fulfillment_request and cancel_fulfillment_order exist but no exclusions are given.

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