AI Disruption

AI Disruption

Claude Code Launches Async Background Agents

Claude Code Async Agents: run 3+ coding tasks in parallel, boost dev speed 3.8×, cut context-switch burnout

Meng Li's avatar
Meng Li
Dec 23, 2025
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Imagine this: You’re juggling 3 different feature developments simultaneously, each requiring independent testing. Previously, you’d need 3 terminals, switching between 3 branches, frantically context-switching like a maniac.

Now, everything has changed.

Anthropic quietly released a game-changing feature in Claude Code’s GitHub changelog—Async Background Agents.

Interestingly, their official website and blog mention nothing about it. It’s like an intentionally hidden easter egg.

Why Is This 2025’s Most Underestimated AI Programming Breakthrough?

Let me illustrate with a real scenario:

Last week, I needed to test 3 different theme designs for an application. The traditional approach would require:

  • Cloning 3 codebases

  • Creating 3 branches

  • Opening 3 Claude instances

  • Constantly switching contexts, my brain is overloading like a CPU

The result? I completed in one afternoon what would traditionally take an entire day.

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