Build your own Lovable

Coding agents feel like magic: point one at a codebase, ask it to fix a bug, and it reads files, edits code, runs commands, and iterates until the task is done. But under the hood, the core ideas are surprisingly approachable.

In this live-coding talk, we’ll build a small coding agent from scratch and use it to demystify how tools like Claude Code or Lovable work. We’ll look at the agent harness: the application layer that talks to the model, maintains context, exposes tools, interprets tool calls, etc.