VPS_updateFirewallRuleV1

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

With no annotations provided, the description adds one important behavioral trait: that VMs with the firewall will lose sync and require manual sync. However, it does not disclose other aspects like idempotency, authorization needs, or error states, which would be expected for a mutation tool.

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 three sentences, front-loaded with purpose, and uses concise language. It could be slightly more efficient, but it is not overly verbose.

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 tool has no output schema, but the description does not mention the response format or success/failure indication. The sync loss warning is valuable but insufficient for a complete picture.

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 covers 100% of parameters with descriptions. The description adds no additional meaning beyond the schema, 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 tool updates a specific firewall rule within a specified firewall. The verb 'Update' and resource 'firewall rule' are explicit, and it differentiates from sibling tools like VPS_createFirewallRuleV1 and VPS_deleteFirewallRuleV1.

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 implies use for modifying existing rules, but lacks explicit guidance on when to use vs alternatives or when not to use. The sync loss warning provides context but no exclusion criteria.

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