The 10x Autonomy Secret: How Agent 3 Ships Production Code While You Sleep

Most AI agents can prototype. But shipping production-ready code? That's where they stumble. Until now.

@amasad just revealed Replit's breakthrough: Agent 3 achieves 10x more autonomy by mastering the tedious parts of shipping software - testing, debugging, and refactoring.

The One Trick That Changes Everything

Enable "Extended Runtime" mode and let Agent 3 work for up to 200 minutes. While other agents quit at the first error, Agent 3 keeps pushing through - testing edge cases, fixing bugs, and refactoring for production.

It's the 'Full Self-Driving' moment for software development.

How to Use It Today

1. Write clear requirements in plain English
2. Enable Extended Runtime (up to 200min)
3. Set checkpoints every 30min to review progress
4. Let it handle the grunt work while you focus on vision

Running This With CodeBrain

Open your CodeBrain Obsidian vault and create a new Agent 3 session using Claude Code CLI:

cb-agent init --model agent3 --runtime extended
cb-agent set-checkpoint 30min
cb-agent watch "vault/projects/current"

Rube MCP will automatically sync the output to your vault and connected tools. Use SuperWhisper to voice-command checkpoints: "Hey Claude, show Agent 3 checkpoint".

Your privacy-first setup keeps all code local while leveraging Agent 3's autonomous capabilities.

Source: Announced by @amasad on September 10, 2025