A codebase for your life.
Midlight is a workspace of plain-text docs and an AI that works on them the way Claude Code works on a repo — reading, editing in place, running bash, calling tools, keeping persistent state.
- Files are files.
.mdis.md. Edit in any editor. Export at any time. - Memory is files. Inspectable, scoped to where it lives. The agent retrieves on demand, never ambiently.
- Every change is a commit. Restore Tuesday's draft. Undo the agent's last action. History is first-class.
- Multi-model from day one. Claude for the primary agent. GPT for critique. You choose. We don't lock you in.
How it works
Same primitive as Claude Code. Applied to prose.
The thing that makes Claude Code powerful isn't coding. It's agent + filesystem + bash. Apply that to a workspace of markdown — vision docs, fitness plans, dating reflections, finances — and you get something most AI tools can't be.
Built for power users.
You already use Claude and Claude Code seriously enough to feel the seams. You want files-first, scriptable, durable state. You've tried Notion AI and ChatGPT projects and the persistent context never quite sticks. You're the user we're designing for.
Not for: passive note-taking, mainstream non-technical users, anyone uncomfortable with seeing file extensions.
Midlight is invite-only.
Designers, developers, AI-fluent creatives. People who feel the seams in chat-based tools and want files-first, scriptable, durable state. Request a spot — we read everything.
Free during the invite phase. BYOK pricing — bring your own Anthropic and OpenAI keys. We don't take a cut of inference. Hosted plans come later, when we know what people actually use.