How I turned my AI CLI into an autonomous agent with Playwright and Sub-agents 🚀

When I first built Codey, it was a simple CLI wrapper around an LLM with a few basic tools. It was great for small tasks, but as I started throwing harder problems at it, the limitations became obvious.

It couldn't run dev servers without blocking the thread, it couldn't browse documentation, and honestly, raw eval() calls were keeping me up at night.

So, I tore down the foundation and did a massive platform rewrite. Today, I'm excited to share how Codey evolved from a simple script into a secure, persistent agent runtime.

Here’s a deep dive into the technical upgrades.

I wanted Codey to be able to read documentation, check GitHub issues, and visually debug UIs. I integrated a full Playwright-backed web tool.