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ncloud_create_load_balancer

Create a load balancer instance on NCP Gov with configurable type, subnets, and listeners. Use dryRun to preview settings before actual creation.

Instructions

Create a new load balancer instance. Use dryRun=true to preview without creating.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
vpcNoYesVPC number
dryRunNoIf true, returns a preview without actually creating the load balancer
idleTimeoutNoIdle timeout in seconds (1-3600, default: 60). Cannot be set for NETWORK type
listenerListYesList of listener configurations
subnetNoListYesList of subnet numbers for the load balancer (one LB-only subnet per zone)
loadBalancerNameNoLoad balancer name (max 30 characters)
throughputTypeCodeNoThroughput type (SMALL, MEDIUM, LARGE, XLARGE for ALB/NProxy; DYNAMIC for NLB)
loadBalancerTypeCodeYesLoad balancer type (APPLICATION, NETWORK, NETWORK_PROXY)
loadBalancerDescriptionNoLoad balancer description
loadBalancerNetworkTypeCodeNoNetwork type (PUBLIC or PRIVATE). Default: PUBLIC
Behavior3/5

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

The annotation only declares destructiveHint=false, which is consistent with a create operation. The description adds the dryRun preview capability, which is useful, but it does not disclose other behavioral traits such as whether the operation is synchronous, idempotent, or requires specific prerequisites.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description consists of two concise sentences that immediately communicate the purpose and a key usage tip. There is no filler or redundant information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a complex tool with 10 parameters and no output schema, the description is adequate given the rich schema. It covers the essential purpose and a preview behavior, but could benefit from mentioning what the response will contain or that the operation is asynchronous.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema provides 100% coverage with detailed descriptions for all parameters, including constraints like 'Cannot be set for NETWORK type' for idleTimeout. The description adds no parameter-specific information beyond what the schema already provides.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses a specific verb and resource: 'Create a new load balancer instance.' This clearly differentiates from sibling tools like ncloud_list_load_balancers, ncloud_get_load_balancer_detail, and ncloud_delete_load_balancers.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

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. It only mentions using dryRun=true to preview, which is a usage tip but does not address tool selection or exclusions.

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

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