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UniFi MCP Server

UniFi MCP Server

list_carrier_service_plans

Lists UniFi Carrier Fabric service plans so you can review available options and select the right plan for a controller.

Instructions

List UniFi Carrier Fabric service plans.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "list_carrier_service_plans"
  }
}

Input Schema

NameRequiredDescriptionDefault
controllerNoController to run against (see list_controllers). Defaults to the controller chosen with select_controller, then the server default.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.6.1

TDQS

B3.1/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden. It implies a read-only listing operation, but does not disclose pagination, permissions, authentication needs, or other operational traits.

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 is a single short sentence with no wasted wording and the purpose is front-loaded. It is appropriately sized for a simple listing tool.

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

Completeness3/5

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

The tool has low complexity, one optional fully documented parameter, and an output schema, so the description need not explain return values. However, it remains minimal and omits usage guidance and behavioral details that would help an agent choose it correctly.

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?

Schema description coverage is 100%, so the single controller parameter is fully documented in the schema, including its default selection chain. The description adds no additional parameter meaning, which matches the baseline when the schema already does the work.

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

Purpose4/5

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

The description states a specific verb and resource: list UniFi Carrier Fabric service plans. It is clear enough to distinguish from get_carrier_service_plan by the plural list operation, but it does not explicitly name the sibling or clarify scope.

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 gives no guidance on when to use this tool versus alternatives such as get_carrier_service_plan or list_carrier_subscribers. Usage is only implied by the word list, with no exclusions or conditions.

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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