ebay_get_fulfillment_policy

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

No annotations are provided, so the description bears full responsibility for disclosing behavioral traits. It only states 'Get' which implies a read operation, but does not mention that the operation is idempotent, requires authentication, what the response format is, or any rate limits. For a simple get operation, this is insufficient.

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, short sentence that effectively communicates the core function. It is front-loaded with the verb and resource. While very brief, it earns its place for a simple get operation, though it could be slightly more detailed without becoming 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 tool's simplicity (1 param, no output schema, no annotations), the description is incomplete. It does not mention the return value (a fulfillment policy object) or any prerequisites. Without an output schema, the description should at least hint at what the response contains. The sibling tools add implicit context, but the description itself is lacking.

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?

Schema description coverage is 100% and the parameter description 'The fulfillment policy ID' is clear. The tool description adds no further meaning, such as expected format or example. Baseline for high coverage is 3, and no extra value is provided.

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 'Get a specific fulfillment policy by ID', using a specific verb ('Get') and resource ('fulfillment policy') with the key identifier ('by ID'). This distinguishes it from sibling tools like ebay_get_fulfillment_policies (list all) or ebay_get_fulfillment_policy_by_name (different identifier).

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_get_fulfillment_policies or ebay_get_fulfillment_policy_by_name. It does not mention prerequisites, appropriate contexts, or when another tool would be better suited.

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