Make sure your next release includes what is already live.
When several people and AI agents change the same project, one release can remove another. Lineage Guard stops that from happening.
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Two AI agents start from the same live version. The first release goes live. The second release arrives later and removes the first.
Before the next release, Lineage Guard checks that it includes what is now live. If not, it stops the release.
Lineage Guard focuses on one job: keeping a later release from removing work that is already live.
Several changes begin
People and AI agents start from the same live version.
One change goes live
The other changes are now based on an older version.
We check before release
Lineage Guard stops an older version from removing what just went live.
A situation you may recognize
One release should never remove another.
Vibe coders and AI agents can create several versions at the same time. When one goes live, the others must include that live work before they can be released.
Before every protected release, Lineage Guard checks that the next version includes what is actually live.
A simple example
A is live. Two AI agents create B1 and B2 from it.
B1 is released first and becomes live.
B2 still builds on A. Releasing it now could remove B1.
When do I need this?
Use it when several changes can reach the same app.
Lineage Guard is built for vibe coders, teams, and AI agents working on the same project at the same time.
- Codex, Copilot, Cursor, or Claude Code is changing your app.
- Several people or AI agents work on the project in parallel.
- You want every release to keep everything that is already live.
Example: One agent releases login while another is finishing checkout. Lineage Guard stops checkout if releasing it would remove the new login.
- You are having a normal AI conversation without asking it to change your app.
- You are writing text, researching, or viewing a finished website.
- Only one version exists and no other release can overtake it.
Example: Asking an AI for advice does not need protection. Asking it to change your app may.
Developers are already describing it
This is not a theoretical problem.
“I wrote all files to the main repo path instead of the worktree path.”Claude Code user on Reddit ↗“
“It lost a whole bunch of prior versions.”Claude user on Reddit ↗“
“Things break badly, including parts of the app that were working before.”Cursor user on Reddit ↗
Lineage Guard does not try to prevent every AI mistake. It checks that the next release keeps the work that is already live.
Easy to install. Hard to copy.
Use it your way. The protection stays with us.
A small connector works inside your project. The actual decision engine runs securely online, so your team gets the result without receiving our core code.
Ask your agent
Paste one prompt into Codex, Copilot, Cursor, or Claude Code.
Use the terminal
Prefer commands? A lightweight connector will take care of setup.
Protect the whole team
The same online check can guard local agents and automated workflows.
Keep what is live, live.
Before the next release, Lineage Guard checks that it includes what is already live.