Batch Update Purchase Option States

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

With no annotations, the description carries the behavioral burden. It discloses that the operation is disabled in read-only mode, which is useful, but it does not mention side effects, permission requirements, or partial failure behavior for the batch request.

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?

Two short sentences with no filler: the first delivers the action and scope, and the second adds the key operational constraint. Information is appropriately front-loaded.

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?

For a three-parameter batch tool with full schema coverage and an output schema, the description covers the essential operation and the read-only restriction. It is slightly thin on behavioral context but not missing invocation-critical details.

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 100%, so the schema already explains package_name, product_id, and requests. The description's activation/deactivation wording loosely maps to the nested activatePurchaseOptionRequest/deactivatePurchaseOptionRequest bodies but adds no new parameter-level meaning.

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?

Description states a specific action ('Activate or deactivate') and resource ('multiple purchase options') in a single operation. It is clear on its own, though it does not explicitly differentiate from similarly named siblings like batch_update_purchase_option_offer_states.

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 when-to-use guidance is provided beyond doing the operation 'in a single operation,' and no alternatives are named. 'Disabled in read-only mode' is an operational constraint, not guidance for choosing this tool over related batch/activation tools.

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