ncloud_set_lb_subnet

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

The description adds no behavioral context beyond what the annotations already indicate (idempotentHint=true, destructiveHint=false). It does not state whether existing subnets are replaced or appended, but the annotations cover the safety profile, so the description is not misleading.

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, focused sentence with no extraneous information. It effectively communicates the core action in a concise and front-loaded manner.

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 operation with full schema coverage and annotations, the description is sufficient. It could mention whether subnets are replaced or appended, but given the tool's low complexity and the richness of the structured metadata, the current level of detail is adequate.

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 provides clear descriptions for both parameters (subnetNoList and loadBalancerInstanceNo), and the schema description coverage is 100%. The description itself does not add extra parameter semantics beyond what the schema already documents.

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 the specific verb 'Set' with the resource 'subnets for a load balancer instance', clearly identifying the operation. It does not explicitly differentiate from similar sibling tools like ncloud_nks_update_lb_subnet, which also updates load balancer subnets in a Kubernetes context, but the naming and phrasing make the target resource clear 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?

No guidance is provided on when to use this tool versus alternatives. There are no mentions of prerequisites, exclusions, or related tools, leaving the agent to infer usage entirely from the tool name and description.

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