Oak is a Git‑style version control system built for AI agents that lets them edit repositories without pulling a full copy. Virtual mounts hydrate on demand, so agents can start working in seconds and run multiple tasks in parallel without worktree conflicts. The project is early; no Windows binary yet and features like CI, issues, or comments are missing.

Oak is implemented as a Rust cargo workspace with oakvcs‑core handling BLAKE3 hashing, content‑defined chunking, and a Blob/Manifest/Commit/Tree model. An optional SQLite + Git backend stores local state. The CLI reached public beta at version v0.99.0, installable via curl on macOS Apple Silicon and Linux x86_64. It also supports incremental upgrades via `oak upgrade`. Windows users download the pre‑built exe or build with cargo.

Because Oak stores data content‑addressed and hydrates lazily, it outperforms Git for agent workloads by avoiding large clones. The author has run the tool for months without any Git backup, showing practical reliability. The repo is open‑source, AI‑generated code under Apache‑2.0, and contributors are invited via email or Discord. Community feedback shapes future releases, giving developers a faster, agent‑centric VCS alternative to Git.