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

With no annotations, the description carries the full burden. 'Confirm' implies a mutation (finalizing removal), but the description does not disclose side effects, irreversibility, permissions required, or any other behavioral traits. It is minimal and leaves the agent guessing about the consequences of calling it.

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, focused sentence with no fluff or redundancy. It is front-loaded with the core action. However, its brevity borders on under-specification, so it earns a 4 rather than a 5.

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 simple 2-parameter tool, the description is inadequate given the lack of annotations and output schema. It doesn't explain the purpose of the confirmation step, the relationship to the prepare tool, or the meaning of draft_id. An agent would need external knowledge to call this 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 coverage is only 50% (customer_id is described, draft_id is not). The description adds no information about either parameter, so it fails to compensate for the undocumented draft_id. An agent is left without clarity on what draft_id refers to or how to obtain it.

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 specific verb ('Confirm') and a specific resource ('one reviewed direct video removal draft'), which clearly distinguishes it from the prepare counterpart and other video upload confirm tools. It is not a tautology and gives a reasonable sense of what the tool does, though it could be more explicit that this executes the removal.

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. It doesn't mention that it should be called after google_ads_video_upload_remove_prepare or that it's the final step in the removal workflow. The naming convention implies the pairing, but the description itself provides no usage context.

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