update_automatic_discount_free_shipping

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

No annotations exist, so the description must disclose behavior. It states 'Only provided fields are changed', implying partial update, but lacks details on idempotency, permission requirements, or effects on active discounts.

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, but it omits necessary context for a complex tool with 11 parameters. It is not verbose, but brevity comes at the cost of completeness.

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 complexity (11 parameters, no output schema, low schema coverage) and the existence of sibling tools, the description is too minimal. It does not cover return values, errors, or how it differs from similar update tools.

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 coverage is only 18%, with most parameters missing descriptions. The description adds that only provided fields change, which helps with update semantics, but does not explain individual parameters like destinationAll, maximumShippingPrice, or combinesWith.

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?

Clearly states the tool updates an existing automatic free shipping discount. The verb 'update' and resource 'automatic free shipping discount' are specific, and the description distinguishes it from sibling tools like update_automatic_discount_basic or create_automatic_discount_free_shipping.

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 on when to use this tool versus alternatives such as update_automatic_discount_basic or create variants. No prerequisites, exclusions, or context provided.

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