AI code review that checks every pull request on a warm, built repo
Promigence gives an AI code-review agent a sandbox forked from a verified, already-built snapshot of the repository, so it can build, run the tests and check its suggestions on every pull request without paying for a fresh clone and install each time.
Who this is for: Companies building AI code-review products, and teams running review agents on their own repositories.
warm fork on the box
at 200 concurrent, all served
forks in six hours, zero failures
Three things that are true of almost every team doing this
Every pull request pays for a fresh build
To check a suggestion, the reviewer needs the code built and the tests runnable. From a cold machine that is a clone, an install and a build on every pull request.
Suggestions nobody ran
A review comment that was never compiled or tested is a guess, and developers learn to ignore guesses.
Review traffic arrives in bursts
A busy morning lands dozens of pull requests at once, and a review that queues behind the others arrives after the author has moved on.
With Promigence underneath
Fork from the latest built snapshot
Snapshot the default branch with its build. Each pull request forks from it and brings only its own changes.
Run the checks before you comment
Build and test the suggested change inside the sandbox, so a comment can say whether it passed.
Many reviews at once
Fork one sandbox per pull request. A burst of reviews starts together instead of waiting in a queue.
# When the default branch moves
promigence snapshot create --image node:22 \
--setup "git clone https://github.com/your-org/app /work/repo && git -C /work/repo checkout <40-char sha>" \
--setup "cd /work/repo && corepack enable && pnpm install && pnpm build" \
--verify "cd /work/repo && pnpm test" --alias app --wait --wait-timeout 10m
# Per pull request: fork, check out the change, test before commenting
promigence fork --snapshot app --count 1 --cap 1
promigence exec --sandbox "$SANDBOX" -- sh -c "cd /work/repo && git fetch origin $PR_REF && git checkout FETCH_HEAD"
promigence exec --sandbox "$SANDBOX" -- sh -c "cd /work/repo && pnpm test"
Run your own workload on it, free
Send a repo and the command you run against it, whatever that is: an eval suite, an RL rollout, a CI job, a queue of coding tasks. We build the environment once, run it a thousand times, and send back the timings, the failures and an exact price. Free, once, on your real workload.
- 1,000 runs of your own command, on your own repo
- What each one cost in wall clock, and anything that failed
- Whether a failure was your code or the environment
- An exact price for your real volume
Not ready to hand over a repo? Read the quickstart or check the numbers first.