Building an AI Agent That Runs Night Shifts

An AI agent night shift is a scheduled automation session that runs while you sleep, executing predefined tasks like content publishing, code reviews, and data processing. The architecture uses macOS LaunchDaemons to trigger Claude Code sessions at specific times with context-injected prompts. Safety boundaries are critical: the agent must know what it can and cannot do autonomously at night. The key components are a planning phase (collect signals about what needs doing), an execution phase (run tasks within safety limits), and a reporting phase (morning summary of everything done). My agent completes 3-5 hours of productive work every night.