E2E tests
that run themselves.
Connect your GitHub repo. Cairn maps every user flow, generates Playwright tests, runs them on a schedule, files GitHub issues when something breaks, and lets Claude write the fix and open a PR.
You don't own your release cadence. Your test suite does.
Tests rot faster than code ships
Every UI change breaks a selector. Engineers stop trusting the pipeline, the pipeline stops catching regressions, and users find them first.
Writing Playwright costs you afternoons
Each flow takes an hour to spec, another hour to stabilize. The next sprint ships without coverage because no one has time.
Coverage can't keep up with product
New routes land faster than QA can write for them. Holes grow between what's tested and what your users actually touch.
Debugging a failure is its own sprint
A red build means reproducing locally, reading a trace, writing the fix, and updating the test. Days of cycle time for every regression.
From repo to merged fix.
A closed loop: map, test, detect, fix. You get green builds without writing the tests — or the fixes.
Connect
Install Cairn on a repo. We read routes, components, and code evidence — no config.
Map
Gemini analyzes every page to surface real user flows: login, checkout, dashboard, settings.
Generate
Each flow becomes a complete Playwright spec — selectors, assertions, and session auth included.
Run
Pick a cadence from every 20 minutes to weekly, or hit Run from the dashboard. Cairn records video and a Playwright trace for every test.
Fix
Failures become GitHub issues. Claude triages first — if the root cause is clear, it writes the fix and opens a merge-ready PR.
Claude writes the PR.
You just hit merge.
When a Playwright test fails, Cairn captures the trace and console output, feeds it to Claude, and opens a minimal fix PR straight to your repo.
$ captured: dom snapshot, trace, console logs, network har
$ analyzing selector resolution against React tree...
$ generating patch via Claude Opus...
Built for the way you actually ship.
GitHub-native
Install as a GitHub App. Cairn reads your code, files issues when tests fail, and opens fix PRs — no CI config required.
Framework-aware mapping
Reads your Next.js App Router pages, layouts, and API routes to derive real user flows — login, checkout, dashboards — from actual code, not guesses.
Real browser execution
Chromium via Playwright. Every run captures video and a Playwright trace so you can replay the exact sequence when something fails.
Change-aware sync
On every push to your default branch, Cairn detects which flows were affected and offers to re-map only those pages — tests stay in sync with the code.
Scheduled monitoring
Run suites on cadence — every 20 minutes, hourly, every 4 hours, daily, weekly. Catch regressions between deploys, not just during them.
Claude Fix loop
Failures turn into classified GitHub issues (bug, timeout, infra). For bugs, Claude triages the root cause, writes the patch, and opens a PR for review.
Stop writing tests.
Start shipping confidence.
> Installing Cairn on your repo...
> Mapping user flows from your codebase...
> Awaiting authorization to generate Playwright tests.