Delete PTR record

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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false. The description adds a meaningful behavioral consequence beyond the annotations: after deletion, reverse DNS lookups will no longer return the previously configured hostname. This helps the agent anticipate the operation's effect on DNS resolution.

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 sentences accomplish full clarity: action, consequence, and usage guidance. There is no redundancy, repetition, or filler, and key information is front-loaded in the first sentence.

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 two-parameter delete endpoint, the description covers the purpose, effect, and use case. There is no output schema, but the description does not explain what response to expect; however, this is a minor gap for a delete operation and the parameter meanings are fully covered by the schema.

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% and both parameters have descriptions ('IP Address ID' and 'Virtual Machine ID'), so the schema carries the parameter meaning. The description adds only general context that the record belongs to a virtual machine, but does not supplement or clarify parameter semantics 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 uses a specific verb and resource: 'Delete a PTR (Pointer) record for a specified virtual machine.' It clearly states the scope of the operation and semantically distinguishes itself from the sibling VPS_createPTRRecordV1 by naming the inverse action without ambiguity.

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 clear context: 'Use this endpoint to remove reverse DNS configuration from VPS instances.' This tells the agent when to invoke it, though it does not explicitly mention alternatives or when-not-to-use conditions.

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