VPS_stopVirtualMachineV1

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

No annotations provided, so the description carries the burden. It discloses idempotency and that it power offs the VM, but lacks details on state transitions, permissions, or whether the stop is graceful. Adequate but not comprehensive.

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 with no redundant information. The main action is front-loaded, and the idempotency note is useful. Everything earns its place.

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 simple, single-parameter stop action, the description covers purpose and idempotency. It lacks any mention of the response or next steps, but given no output schema, it is reasonably complete. Slightly more would be ideal.

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 only parameter 'virtualMachineId' is fully described in the schema. The description adds no extra meaning, format, or source hint. Baseline 3 is appropriate as schema coverage is 100%.

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 clearly states the action is to 'Stop a specified virtual machine' and to 'power off running VPS instances', which precisely matches the tool name and resource. It distinguishes from siblings like start, restart, and stop project operations.

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 includes idempotency ('no effect if already stopped') but does not provide explicit guidance on when to use this tool versus alternatives like VPS_stopProjectV1 or when not to use it. Usage is implied but not contrasted.

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