create_feature_flag

Generate and manage feature flags using a defined schema in the GrowthBook MCP Server. Specify ID, value type, default value, and file extension to create flags for controlled feature rollouts.

Instructions

Create, add, or wrap an element with a feature flag.

Input Schema

Name	Required	Description
`archived`	No	Whether the feature flag is archived
`defaultValue`	Yes	The default value of the feature flag
`description`	No	A description of the feature flag
`fileExtension`	Yes	The extension of the current file. If it's unclear, ask the user.
`id`	Yes	A unique key name for the feature
`project`	No	The project the feature flag belongs to
`tags`	No	Tags for the feature flag
`valueType`	Yes	The value type the feature flag will return

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "archived": {
      "default": false,
      "description": "Whether the feature flag is archived",
      "type": "boolean"
    },
    "defaultValue": {
      "description": "The default value of the feature flag",
      "type": "string"
    },
    "description": {
      "default": "",
      "description": "A description of the feature flag",
      "type": "string"
    },
    "fileExtension": {
      "description": "The extension of the current file. If it's unclear, ask the user.",
      "enum": [
        ".tsx",
        ".jsx",
        ".ts",
        ".js",
        ".vue",
        ".py",
        ".go",
        ".php",
        ".rb",
        ".java",
        ".cs"
      ],
      "type": "string"
    },
    "id": {
      "description": "A unique key name for the feature",
      "pattern": "^[a-zA-Z0-9_-]+$",
      "type": "string"
    },
    "project": {
      "default": "",
      "description": "The project the feature flag belongs to",
      "type": "string"
    },
    "tags": {
      "description": "Tags for the feature flag",
      "items": {
        "type": "string"
      },
      "type": "array"
    },
    "valueType": {
      "description": "The value type the feature flag will return",
      "enum": [
        "string",
        "number",
        "boolean",
        "json"
      ],
      "type": "string"
    }
  },
  "required": [
    "id",
    "valueType",
    "defaultValue",
    "fileExtension"
  ],
  "type": "object"
}

GrowthBook MCP Server

create_feature_flag

Instructions

Input Schema

Input Schema (JSON Schema)

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MCP directory API