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

The description says 'Update', consistent with annotations readOnlyHint=false and destructiveHint=true, and adds that the update affects routing flags. It does not go beyond the annotations to explain consequences such as revoking access or propagation effects.

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, direct sentence with no fluff. Slightly terse but efficient; could be improved by mentioning the account id or effect, but not necessary for concision.

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?

Adequate for a simple update tool when combined with the schema and annotations, but it lacks any statement about return value, required ad_account_id, or side effects. It is not misleading, but a bit sparse.

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?

The description repeats three boolean parameter names but adds no semantics beyond their names; ad_account_id is omitted, although it is required. With schema coverage at 75%, the baseline of 3 is appropriate.

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?

Clearly states an update action on account permission routing flags and names the relevant fields, which distinguishes it from the assets_list_* and assets_lookup_* siblings. It does not explicitly say 'ad account', but the ad_account_id parameter makes the target unambiguous.

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?

Provides no guidance on when to use this tool versus alternatives, prerequisites, or whether it should be preferred over other asset update/refresh tools. The action is implied by 'Update', but no explicit usage context is given.

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