Keep your Mac awake for AI agents without leaving the lid open

In recent weeks, tech professionals have shared their struggles with keeping MacBooks powered during extended AI workloads. Many engineers resort to unconventional workarounds—propping laptops open in cafes or using third-party tools like tmux or Amphetamine—only to face drained batteries when they forget to disable sleep prevention manually. A new utility called Adrafinil offers a smarter alternative by intelligently detecting AI agent activity and temporarily blocking sleep without requiring external power or an open display.

The hidden cost of keeping MacBooks awake

Traditional solutions like caffeinate or physical sleep prevention tools force Macs to stay awake continuously, draining battery life and risking overheating. Many users prefer not to rely on these methods because they either forget to disable them or find their devices completely discharged after unsupervised sessions. The challenge becomes even more pronounced for developers running autonomous AI agents that require uninterrupted runtime, such as code generation or data processing tasks.

How Adrafinil solves the sleep dilemma

Adrafinil approaches this problem differently by activating sleep prevention only when actively needed. The tool installs monitoring hooks into popular AI development environments like Claude Code and Codex, detecting when agents are actively executing tasks. Unlike blanket sleep prevention methods, it avoids unnecessary battery drain by dynamically enabling or disabling sleep based on real-time activity.

Key features include:

• Intelligent detection: Monitors agent activity through integrated hooks in major AI tools
• Dynamic sleep control: Uses pmset disablesleep 1 to prevent sleep only during active sessions
• Visual feedback: Displays active status in the menu bar and plays an audio cue when the lid closes
• Automatic recovery: Reverts sleep settings to normal once agents complete their tasks
• Safety measures: Allows sleep in case of overheating or manual override via an optional MCP integration
• User control: Supports manual toggling to extend awake time for specific durations

The application’s architecture follows security best practices, separating privileged and unprivileged components. The root helper exposes only the essential setSleepBlocked function, while all policy logic remains in non-privileged sections. All binaries are notarized and the entire project is open-source under the MIT license, allowing developers to audit the code for transparency and security.

Why developers are embracing this approach

For engineers who previously relied on workarounds like keeping laptops semi-open or juggling sleep prevention tools, Adrafinil provides a more reliable and efficient solution. The ability to maintain uninterrupted AI agent execution without sacrificing battery life addresses a growing pain point in the developer community. With increasing adoption of autonomous coding tools and long-running ML workloads, tools that intelligently manage system resources are becoming essential.

Looking ahead, the team behind Adrafinil continues to refine its detection algorithms and expand compatibility with additional AI development environments. As AI-driven workflows become more prevalent, utilities that bridge the gap between efficiency and system resource management will likely see broader adoption across professional and personal computing environments.