An autonomous engineer, supervised by you

Ship the work you
keep putting off.

Nocturne takes the tedious engineering, dependency upgrades, framework migrations, test backfill, works your whole repository for as long as it takes, and hands you a clean, reviewable pull request. You review, you merge, you stay in control.

Self-hostable. Your code never leaves your environment. Nothing merges without your review.
nocturne / pull request #2014
Upgrade React 17 to 19 across the app
opened by nocturne[bot] · 184 files · 6h 12m of work
checks passed · 2,620 tests green
planMapped every deprecated API and render path in the repo.
workMigrated lifecycle calls, updated the test setup, fixed the breaks.
proofRan the full suite after each change. All green before opening the PR.
youRead the summary, review the diff, merge when you are happy.
How it works
Point it at a job. Get back a pull request.

No magic, no merging behind your back. A long, careful grind that ends where every change should: in a PR you review.

01

Point it at the job

Connect a repository and pick a job: upgrade a framework, backfill tests, migrate to a new API.

02

It does the long grind

A team of agents works across the whole codebase for as long as the job takes, running your tests as the proof at every step.

03

You get a reviewable PR

Green tests, a plain-English summary, every change in one pull request. You review, you merge. Nothing ships without you.

What it does
The jobs nobody wants to do.

Bounded, high-tedium, easy to verify. The work that sits in your backlog for months because no one has a free week.

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Dependency & framework upgrades

Stay current without losing a week. React, Next, Node, Python, the version bumps everyone postpones.

Test backfill

Turn untested code into covered code. Real tests, green before they land, reviewed by you.

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Refactors & migrations

The big mechanical changes applied consistently across the repo, delivered as one clean pull request.

Why Nocturne
Built to be trusted, not just impressive.

Most autonomous agents ask you to walk away and hope. Nocturne is the opposite: long-horizon work, with you in the loop and your tests as the truth.

You review every PR

You keep ownership of your codebase. Nothing merges autonomously, ever.

Your code stays yours

Self-hostable. Run it in your own environment so source never leaves your walls.

Built for the long jobs

Multi-hour, whole-repo work that an in-editor assistant will never sit through.

Tests are the proof

If your suite is green, the work is real. Evidence, not vibes.

Early access

Hand off the grind.

We are onboarding a small first group. Tell us the job you would hand over first, and we will reach out.