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openclaw-skill/openclaw-knowhow-skill/docs/infrastructure/platforms/mac/xpc.md
Selig 4c966a3ad2 Initial commit: OpenClaw Skill Collection
6 custom skills (assign-task, dispatch-webhook, daily-briefing,
task-capture, qmd-brain, tts-voice) with technical documentation.
Compatible with Claude Code, OpenClaw, Codex CLI, and OpenCode.
2026-03-13 10:58:30 +08:00

1.4 KiB

macOS IPC

Overview

OpenClaw's macOS architecture uses a local Unix socket connecting a node host service to the macOS app for execution approvals and system commands. A debug CLI tool (openclaw-mac) supports discovery and connection checks.

Key Architecture Components

Primary Goal

Maintain a single GUI app instance that handles all TCC-related operations while minimizing the automation surface area.

System Layers

The system operates through three main layers:

1. Gateway + Node Transport

The application runs the Gateway locally and connects as a node, executing agent actions via node.invoke for commands like system.run and system.notify.

2. IPC Layer

A headless node service connects to the Gateway WebSocket, forwarding system.run requests to the macOS app through a local Unix socket with security measures:

  • Tokens
  • HMAC validation
  • TTL

3. UI Automation

PeekabooBridge operates on a separate socket (bridge.sock), following a preference hierarchy:

  1. Peekaboo.app
  2. Claude.app
  3. OpenClaw.app
  4. Local execution

Security Considerations

Protection mechanisms include:

  • Socket permissions set to 0600
  • Peer UID verification checks
  • HMAC-based challenge/response protocols
  • Short time-to-live values on tokens
  • TeamID matching requirements for privileged operations
  • Signed bundle ID stability across rebuilds

Communication remains entirely local without exposed network sockets.