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 does not mention that this is a mutating operation (creating an ad), any authorization requirements, idempotency, or side effects. The single sentence gives no behavioral context beyond the verb.

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, which is concise but under-specified. It lacks essential context about the operation, parameters, and workflow, so the brevity is not effective.

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?

The tool is a confirmation step in a two-step creation flow (prepare/confirm), but the description does not explain what a draft is, how to obtain it, or what happens after confirmation. With no output schema and no annotations, the agent lacks critical information to use the 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 50%: only customer_id is described in the schema, while draft_id is not. The description adds no parameter information, so it does not compensate for the missing schema description. An agent cannot infer what draft_id refers to from the description.

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 states a clear verb ('Confirm') and resource ('an RSA-create draft'), which distinguishes it from the sibling 'prepare' tool. However, it does not explain what confirmation entails (e.g., finalizing the ad creation), so it is not fully explicit about the action's effect.

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?

There is no guidance on when to use this tool versus alternatives. The sibling list includes google_ads_responsive_search_ad_create_prepare, implying a two-step flow, but the description never mentions that it should follow a prepare step or any conditions for its use.

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