Every developer deserves an AI teammate that actually works.

The problem

The way we write software is changing faster than the tools can keep up. AI can generate entire files in seconds, debug code it's never seen, and refactor systems across thousands of lines.

But the developer experience around these capabilities is still broken. Juggling tools that don't share context. Sending proprietary code to someone else's cloud. Paying per token for something that should feel as natural as running a linter. Trusting a black box.

Our approach

GrayCode is building Rho, an AI coding agent that runs on your machine. Your code goes only to the model provider you pick, with your own key. Your keys stay in your OS keychain. Every line is MIT licensed, because trust is built through transparency, not terms of service.

Rho keeps its tools in one session because AI coding tools need shared context to be useful. When one agent can read the code, run the tests, check the history and review the change, it stops being a toy and starts being a teammate. Around it we build small, focused projects: Flux for model access, GrayCode Skills for reusable workflows, Rover for agent workspaces, Across for engineering context and Trace for self-hosted Git.

Where we're going

Right now we're building Rho in the open. It is alpha: features, tests and hardening come first, and a recommended public install comes when it is ready. The goal is a CLI you can trust every day.

We want to build the platform where solo developers and their agents can bring their own models, their own data, and their own workflows, and have an AI teammate that genuinely understands their codebase. Not a chatbot that guesses. A teammate that remembers, reasons, and ships.

We want AI coding to be as reliable as version control. Something you depend on every day without thinking about it. Something that just works — one bit at a time.

Why “GrayCode”?

The name comes from the binary encoding system where only one bit changes at a time — small, reliable steps forward. That's our promise. We won't move fast and break things. We'll move deliberately and build things that last.

We're two engineers. No investors. No board. No one telling us to ship faster at the expense of quality. We fund this ourselves because we want to build something we're proud of — not something that looks good in a pitch deck.