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

Annotations already declare destructiveHint=true and readOnlyHint=false, so the risky nature is signalled structurally. The description adds nothing beyond that: it does not say the unlink is irreversible, what the asset is being detached from, or whether a mutation receipt is returned. It essentially restates the title.

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?

One short, front-loaded sentence with zero filler. It is concise but that brevity comes at the cost of being under-specified for a destructive operation, so it earns a middling score rather than a high one.

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 destructive mutation with no output schema and two of three parameters undocumented, the description is far too thin. It omits the prerequisite draft, the effect of confirmation, and any result information, leaving real gaps an agent would need to guess at.

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 33% (only customer_id is documented), and draft_id and connection_context are undocumented. The description mentions 'draft' but adds no format, source, or meaning for draft_id, so it fails to compensate for the coverage gap.

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 and resource ('Confirm an asset-unlink draft'), so the agent knows this finalizes a pending unlink. However, it does not distinguish itself from the obvious sibling google_ads_asset_unlink_prepare, nor does it explain what 'confirm' actually executes. It is minimally viable rather than differentiating.

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 when-to-use guidance beyond the implicit requirement that a draft must already exist. The description never names google_ads_asset_unlink_prepare as the prerequisite step or explains when confirmation should be withheld, despite the whole family being built on a prepare/confirm workflow.

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