**OhMyPi** (also written **oh-my-pi**, CLI command `omp`) is an open-source, terminal-based AI coding agent — essentially an "AI coding agent with the IDE wired in." ## Key facts - **Creator:** Can Boluk (handle `can1357`), a security researcher and reverse engineer. It originated as a fork of **Pi**, the minimalist coding agent by Mario Zechner (`@mariozechner`), and has since grown into a substantially expanded tool. ([GitHub repo](https://github.com/can1357/oh-my-pi)) - **Scale:** ~25.9k stars, 2.5k forks, ~18,600 commits, and roughly **80k lines of Rust core**. It supports **60+ model providers**, ships **31 built-in tools**, **14 LSP ops**, and **28 DAP (debugger) ops**. ([GitHub repo](https://github.com/can1357/oh-my-pi)) - **Official site:** [omp.sh](https://omp.sh) ## What makes it distinctive 1. **Hash-anchored edits** — edits are anchored to file hashes so concurrent agent runs don't clobber each other. 2. **LSP wired into every write** — edits are symbol-aware (e.g., a rename goes through `workspace/willRenameFiles`, updating re-exports, barrel files, and aliased imports) rather than blind text replacement. 3. **Drives a real debugger (DAP)** — it can attach lldb, dlv, or debugpy to debug C, Go, or Python processes, rather than just sprinkling print statements. 4. **Code execution with tool-calling** — runs persistent Python and a Bun worker; either kernel can call back into the agent's own tools over a loopback bridge. 5. **Time-traveling stream rules** — rules stay dormant until the model goes off-script; a regex match aborts the stream mid-token, injects a system reminder, and retries from the same point. 6. **Subagents, plan mode, hindsight memory, hashline edits** — additional workflow features. ## Installation - **macOS/Linux:** `curl -fsSL https://omp.sh/install | sh` - **Homebrew:** `brew install can1357/tap/omp` - **Bun (recommended):** `bun install -g @oh-my-pi/pi-coding-agent` - **Nix:** `nix run github:can1357/oh-my-pi` - **Windows (PowerShell):** `irm https://omp.sh/install.ps1 | iex` It's also available as an npm package (`@oh-my-pi/pi-coding-agent`) for embedding in Node/TypeScript hosts. ([GitHub repo](https://github.com/can1357/oh-my-pi)) ## Positioning It's frequently described as an **open-source, terminal-native alternative to Claude Code / Cursor's IDE agent**, keeping the agent in an open terminal workflow with local tool orchestration and model choice. Reviews note it's more flexible for projects with varied files and artifacts, while competitors like OpenCode are more polished for ordinary code. ([Open Source Alternatives](https://www.opensourcealternatives.to/item/oh-my-pi), [First Impressions](https://akitaonrails.com/en/2026/05/25/first-impressions-using-oh-my-pi-and-opencode/))