ncloud_add_acg_inbound_rule

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

Annotations only indicate destructiveHint=false, which is consistent with adding a rule. However, the description fails to disclose behavioral traits such as whether the ACG must exist, what happens on duplicate rules, or any rate limits. More context is needed.

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 a single sentence with no wasted words. However, given the tool's complexity (7 parameters, 3 required), it could benefit from a brief usage hint without sacrificing conciseness.

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 relatively simple rule addition tool, the description is minimally adequate. However, it lacks information about return values, idempotency, and error conditions. With no output schema, more context would be helpful.

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 coverage is 100% with thorough parameter descriptions, so the baseline is 3. The description adds no additional meaning beyond the schema; it does not explain parameter relationships or constraints.

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 'Add an inbound rule to an Access Control Group' uses a specific verb ('Add') and resource ('inbound rule to an Access Control Group'), clearly distinguishing it from siblings like ncloud_add_acg_outbound_rule and ncloud_get_acg_rules.

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 no guidance on when to use this tool versus alternatives like ncloud_add_acg_outbound_rule. It does not mention prerequisites, exclusions, or context for choosing between ipBlock and accessControlGroupSequence.

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