cluster_create

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

Annotations already indicate a write operation (readOnlyHint=false) with non-destructive, non-idempotent behavior. The description adds 'Create' and parameter defaults but does not elaborate on side effects, such as host associations or error conditions. No contradiction with annotations.

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 concise and well-structured, with a brief intro followed by a clear bullet list of parameters. Every sentence adds value, and the '[WRITE]' prefix immediately signals the operation type.

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?

The description covers creation steps and parameters but omits prerequisites (e.g., datacenter must exist, target vCenter availability) and potential failure scenarios (e.g., cluster name conflict). Since an output schema exists, return values are not required, but missing context reduces completeness.

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?

With 0% schema description coverage, the description adds meaningful context for all six parameters, including purpose and defaults (e.g., 'uses first datacenter if omitted'). However, it fails to indicate that drs_behavior is only relevant when drs is true, which could lead to misuse.

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 starts with '[WRITE]' and states 'Create a new cluster with optional HA and DRS configuration,' which clearly identifies the action and resource. However, it does not differentiate from sibling tools like 'cluster_configure' or 'cluster_add_host' despite being a distinct creation operation.

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?

The description provides no explicit guidance on when to use this tool versus alternatives, such as using 'cluster_configure' for modifications. No prerequisites (e.g., datacenter existence) or context on choosing HA/DRS is mentioned, leaving the agent to infer usage.

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