oh-my-pi

Oh My Pi is an AI coding agent that lives in your terminal, and right now it's one of the more capable open source ones out there. It reads your code, makes edits, runs commands, and drives whole workflows. What sets it apart is that it wires in the machinery a real IDE uses: language servers for accurate renames and refactors, and actual debuggers (lldb, delve, debugpy) so the model can step through running code instead of guessing at it. It's MIT-licensed and completely free.

Setup is a one-line install (curl, Homebrew, or Bun), and it picks up your existing configs from Cursor, Cline, or Copilot automatically, so there's no migration tax. It works with more than 40 model providers, from Anthropic and OpenAI to local runners like Ollama and llama.cpp, and you can assign different models to different jobs: a cheap one for subagents, a heavy reasoner for planning. The clever parts are real, not marketing. Hash-anchored edits key changes to content instead of line numbers, which kills the "string not found" failures that plague other agents.

The tool itself costs nothing. What you pay is the model bill, and with a swarm of subagents and browser automation running, that adds up faster than a single-threaded assistant. Solo devs and small teams: this is a legitimate free alternative to a Cursor or Copilot subscription if you're comfortable in a terminal and already have API keys. Prefer coding inside a graphical editor? Stay with Cursor.

The catch is maturity. This is a fast-moving fork of another young project, built by a small crew, not a company with a support desk. The feature list is deep, maybe too deep, and that much surface area means rough edges. Treat it as a powerful tool you're willing to debug, not a set-and-forget replacement for a polished commercial product.