Five steps. Repo to verified PR.

We analyze your codebase, understand your features, generate E2E tests, find bugs, verify fixes, and open PRs. Automatic on every push.

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Connect once. We map your features.

OAuth. Pick repos. First test run in 12 minutes. Source code deleted within 45 minutes.

We clone your repo, extract the symbol table (function signatures, routes, schema, API endpoints, middleware), then delete the source. What persists is a structural map of what exists — not how it’s implemented.

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Authorize via GitHub/GitLab OAuth
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Select repos and branches
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We extract symbols, routes, schema (~15 min)
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Source deleted. Feature graph retained.
Louvain Community Detection Feature Map — network graph with function nodes clustered into Auth & Users, Billing & Payments, Coupons & Discounts, and Notifications. Red dashed edges show cross-feature interactions where bugs live.

Louvain community detection

A feature graph is a structural map of your codebase organized by features (user journeys) rather than files. It shows which functions, routes, database tables, and API calls belong to each feature, and how features depend on each other.

We apply Louvain clustering to your call graph to find which functions work together: routes sharing middleware, DB operations on the same tables, API calls through service boundaries, event handlers. Those clusters are features.

Tests run. Bugs traced to the line.

Ephemeral Docker containers. Real database. Real dependencies. Destroyed after every run.

Each container spins up with your app, a fresh PostgreSQL instance with your actual schema, Redis if you use it, and API mocks for Stripe, Twilio with realistic responses. No test doubles. No in-memory fakes.

When a test fails, we trace backward: which step failed, what HTTP response came back, what SQL query ran, what database state existed. Root cause to the exact function, exact parameters, exact line.

Sequential execution. ~15–30 min per run. Your production and staging are never touched.

Ephemeral test environment — Your App connected to PostgreSQL, Redis, Stripe Mock, and Test Runner inside a Docker container. Production and Staging shown crossed out with Never touched. Lifetime 5-30 minutes, network isolated.

Bugs arrive with fixes. Ready to merge.

Fix suggested. Verified against 8+ tests. Regression-checked. PR opened. You review. You merge.

We never push to your branches. We never deploy. We never merge. You review every single PR. You always have the last word.

  • Code change with root cause context
  • Link to diagnostic trace
  • Before/after test output
  • Regression check against unrelated features
Pull Request #247
OpenFix negative checkout total
traversetest-bot · 12 min ago
applyDiscount() double-applies
src/lib/pricing.ts:89
− const afterSub = price * (1 - sub.discount)
+ const couponFirst = price * (1 - coupon.percent)
+ return Math.max(0, couponFirst * (1 - sub.discount))
8 tests pass · 94 unrelated unaffected · 0 regressions

Real results.

Stripe billing integration

280k lines, 45 microservices, 87% coverage. TraverseTest found 2 bugs in production — webhook retry race condition and orphaned usage records. $50k+ in billing disputes prevented. Time to merge: 4 hours.

18 minanalysis
2bugs caught
$50k+impact prevented
4 hrstime to merge

Supported frameworks

Next.jsExpressDjangoFastAPIRailsSpringFlaskLaravel

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