Oak: a content-addressed version control system built for agents

Category: Dev tools
Status: discussion
Sources: oak.space, discussion
Summary: Oak is an Apache-2.0 version control system, in public beta at 0.99.0, positioned as a Git alternative for AI agents. It uses BLAKE3 content-defined chunking instead of Git's SHA-1, lazy on-demand hydration to start editing large repos in seconds, a branch-per-session model with manifest-level descriptions instead of per-commit messages, and native JSON output. The README states the project was written almost entirely with AI under human oversight.
Why it matters: It is one of several 2026 attempts (alongside Epic's Lore and "Git alternative for agents" Show HN projects) to rework VCS primitives around agent workflows rather than human commits.
Follow-up: Watch for a 1.0 tag, Windows prebuilt binaries, and any interop with Git history.