iaas_create_vmc_cloud_account_async

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

Annotations already flag a non-idempotent, open-world write, so the description should add what annotations cannot. It omits the critical behavior: this is an *async* operation whose result must be tracked via a request tracker, and it ignores the schema's validateOnly dry-run mode. Credential/permission requirements for the VMC account are also unmentioned.

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 lines, but the first two are near-duplicates ('Create a cloud account' / 'Create a cloud account in the current organization'), wasting the front-loaded position. Only the endpoint line carries distinct information.

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 tool with a large nested body of required credentials, an async request-tracker return, and no output schema, the description is far too thin. It should explain the async lifecycle and how to obtain regions/data collectors before calling.

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 100%, so the nested body fields (apiKey, sddcId, hostName, nsxHostName, regions, etc.) and the apiVersion/validateOnly params are already well documented. Baseline 3 applies since the description adds no meaning beyond the schema.

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 generic verb+resource ('Create a cloud account') and repeats it with an org scope. It never says 'VMC' in prose — the only signal that this is the VMC variant rather than the AWS/Azure/GCP/vSphere/NSX-T/AVI LB siblings is the URL path and the tool name. An agent must infer the differentiation rather than read 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?

No statement about when to use this versus the many sibling cloud-account creators, nor any prerequisites (VMC API key, data collector, region enumeration). The description gives no routing guidance at all beyond the tool name.

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