The 408

Decorated for Halloween

The 408: a house that runs on AI

Fred, the house's assistant, picked a costume. Soon you can follow along here as the house gets built, breaks and gets better, and learn to build with AI the careful way.

The lights are coming on. Nothing to sign up for yet.

The 408 house logo decorated for Halloween: pumpkins on the steps, bats by the moon and a spider by the porch

Fred is dressed as a jack-o'-lantern.

What's coming

  • The build log

    What went wrong, what fixed it and the rule it left behind. Written up after the fix.

  • Porchlight Starter

    A free kit that makes an AI coding agent careful: a safety hook, a verify step, a handoff and house rules.

  • How Fred works

    The ideas behind an assistant that asks before it changes anything, can undo what it did and keeps a journal.