VPS_createSnapshotV1

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

The description warns that creating a new snapshot overwrites the existing one, which is a critical behavioral trait. No annotations exist, so the description carries the full burden. It does not mention auth or rate limits, but the overwrite disclosure is valuable.

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 with a few sentences, front-loading the purpose. The bold warning stands out. Could be slightly more concise by combining redundant phrases, but overall efficient.

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 the main action, use case, and overwrite behavior. However, it lacks details about return value (e.g., snapshot ID or status) since no output schema exists. For a simple tool, it is adequate but not fully comprehensive.

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 (virtualMachineId) with schema description 'Virtual Machine ID'. The tool description adds no extra semantic beyond the schema. Schema coverage is 100%, so baseline 3 is appropriate.

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 ('Create a snapshot') and the resource ('virtual machine'). It explains the purpose (backup, recovery, testing). However, it does not explicitly differentiate from sibling snapshot tools like restore/get/delete, but the verb 'create' makes it distinct enough.

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 advises using this tool for backup and recovery purposes. It does not specify when not to use it or mention alternative tools for restore or delete. Given the many sibling VPS tools, explicit exclusions would improve clarity.

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