Deactivate firewall

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

Annotations indicate this is not read-only and not destructive, and the description's 'remove firewall protection' clarifies the practical effect. It does not add deeper behavioral context such as whether the operation is reversible, whether the firewall object remains available, or what response the agent should expect.

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 short and front-loaded with the main action. However, the second sentence largely restates the first, making it somewhat redundant without adding new decision-relevant information.

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 mutation with no output schema, the description is minimally adequate. Missing context includes the security implications of removing firewall protection, how this differs from deleting a firewall, and whether any confirmation or follow-up action is needed.

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 input schema already covers both parameters with clear descriptions: 'Firewall ID' and 'Virtual Machine ID.' The description adds no additional parameter-level meaning, which is acceptable because 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 identifies the action ('Deactivate'), the resource ('a firewall'), and the target ('a specified virtual machine'). It also clarifies the effective outcome as 'remove firewall protection from VPS instances.' It does not explicitly name sibling alternatives, but the wording distinguishes it from activate, delete, and sync 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 phrase 'Use this endpoint to remove firewall protection' provides a basic use case and implies when to call it. However, it does not explicitly contrast with closely related siblings like VPS_activateFirewallV1 or VPS_deleteFirewallV1, nor does it mention when not to use this tool.

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