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

No annotations are provided, so the description carries the full burden of explaining behavior. 'Confirm' is vague: it does not say what confirming actually does (e.g., commit the create, trigger an async task, return a receipt), whether it has side effects, or what the caller should expect.

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, front-loaded sentence with no filler. Every word earns its place, and the most important scoping detail ('prepared WEBPAGE ... create draft') appears immediately.

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?

With no output schema and no annotations, the description leaves out essential context: what confirming returns, whether this is an async operation, how draft_id is obtained, and whether a follow-up task/receipt check is needed. It is not complete enough for an agent to chain this tool correctly.

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 only 50%; customer_id is documented but draft_id is not. The description does not explain how to obtain draft_id, what format it takes, or that it comes from the corresponding prepare step. The phrase 'prepared ... draft' adds minimal meaning beyond the parameter name.

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 names a specific action ('Confirm') and a specific resource ('one prepared WEBPAGE conversion-action create draft'), clearly distinguishing this tool from the prepare counterpart and from conversion-action update/remove confirms. It is specific enough that an agent can tell what this tool is for.

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 word 'prepared' implies this tool should be used after a prepare step, but the description does not explicitly say 'use after google_ads_conversion_action_create_prepare' or mention when not to use it. Usage context is implied rather than stated, and no alternatives are named.

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