macOS Defaults MCP Server

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defaults-write

Modify macOS system preferences and application settings by using the command defaults write <domain> <key> <value>. Set specific values for keys within domains to customize system behavior.

Instructions

use the defaults write <domain> <key> <value> command

Input Schema

Name	Required	Description
`domain`	Yes	Domain to write to
`key`	Yes	Key to write to
`value`	Yes	Value to write

Input Schema (JSON Schema)

{
  "properties": {
    "domain": {
      "description": "Domain to write to",
      "type": "string"
    },
    "key": {
      "description": "Key to write to",
      "type": "string"
    },
    "value": {
      "description": "Value to write",
      "type": "string"
    }
  },
  "required": [
    "domain",
    "key",
    "value"
  ],
  "type": "object"
}

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