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

Annotations say it is a non-destructive write, but the description adds meaning the annotations cannot: it never charges or publishes, and instead returns a resumable paid/approval handoff. That is exactly the safety context an agent needs before invoking a create tool in a monetized workflow. It stops short of explaining what a repeat call does, which matters given idempotentHint=false.

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?

Three short sentences, no filler, with the non-charging/non-publishing guarantee front-loaded where it matters most. The documentation URL is the only element that displaces information that could have been inline.

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 create mutation with no output schema, the description does disclose the handoff return behavior, which is good. It omits prerequisites (does a recommendation need to be assessed first?), what asset type is produced, and repeat-call semantics, leaving real gaps for a write tool.

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?

Only one parameter (projectId) at 0% schema coverage, so the description should clarify what the project scopes. It does not, though the parameter name and single-parameter surface keep the risk low.

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?

"Prepare the highest-priority asset" gives a verb and a resource, but "asset" is never defined (ad, page, email?) and "highest-priority" is left to inference. It also fails to distinguish this from the sibling preview_recommended_asset, which an agent could easily confuse with it.

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 explicit when-to-use guidance and no mention of preview_recommended_asset as the dry-run alternative, even though that sibling directly overlaps. The agent must infer that this is the commit step after a recommendation exists.

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