MCP cldkctl Server

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

No annotations are provided, so the description carries full burden. It fails to disclose that this is a write operation (creating a VM), what permissions are required, whether it's destructive, what happens on success/failure, or any rate limits. The description adds no behavioral context beyond the obvious implication of 'create'.

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?

While technically concise with one sentence, this is under-specification rather than effective conciseness. The sentence doesn't earn its place by adding value; it merely states the obvious. A truly concise description would convey actual purpose in minimal words.

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 VM creation tool with no annotations, no output schema, and a nested object parameter, the description is completely inadequate. It doesn't explain what VM creation entails, what data is needed, what the response looks like, or any system implications. This leaves critical gaps for agent understanding.

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%, with the single parameter 'vm_data' documented as 'VM data'. The description adds no additional parameter information beyond what the schema provides, so it meets the baseline of 3 where the schema does the heavy lifting.

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 'Call the cldkctl_create_vm endpoint' is a tautology that merely restates the tool name with 'call' added. It doesn't specify what the tool actually does (create a virtual machine), what resource it operates on, or how it differs from similar tools like 'cldkctl_create_vm_yaml' or 'cldkctl_vm_create' in the sibling list.

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 guidance is provided on when to use this tool versus alternatives. With multiple VM creation tools in the sibling list (cldkctl_create_vm_yaml, cldkctl_vm_create), the description offers no differentiation, prerequisites, or context for selection.

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