Trunk - Code Quality Automation

Keep CI green and ship faster with flaky test detection

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Updated Jul 2026 · Added Jun 2026

trunk.io

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What is Trunk?

Trunk is a CI reliability platform that detects, quarantines, and eliminates flaky tests across any language, test runner, and CI provider. It automatically isolates unreliable tests to speed up CI pipelines while collecting failure diagnostics, and provides an intelligent merge queue that batches PRs and prevents broken code from reaching main. Built for teams with monorepos and high developer velocity who need to keep CI green and ship faster.

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Key Features of Trunk

Flaky test detection across any language and test runner
Automatic flaky test quarantining
AI-powered failure analysis with duplicate detection
GitHub Merge Queue with anti-flake protection
Intelligent PR batching (up to 100 PRs per run)
Auto-bisection for batch failure isolation
Parallel queue lanes for non-overlapping changes
Test status history tracking
Linear and Jira integration for ticketing
Slack and webhook notifications
PR test summaries

Who Should Use Trunk?

Reduce CI merge bottlenecks in high-velocity monorepo teams

Eliminate test re-runs caused by flaky tests

Speed up GitHub merge queues with batching

Automate hotfix prioritization with parallel queues

Detect when tests become flaky or broken

Manage dozens or hundreds of developers safely in one CI process

Trunk: Pros & Cons

✓Pros

Detects flaky tests automatically without manual intervention
Reduces CI costs by eliminating test re-runs
Batches up to 100 PRs in parallel with auto-bisection
AI-powered failure analysis spots duplicates and summarizes root causes
Works with any language, test runner, and CI provider
Prevents broken code from reaching main branch
Provides comprehensive flaky test dashboard with metrics
Hotfixes can jump queue without cascade rebuilds

Frequently Asked Questions about Trunk

Does Trunk work with CI providers other than GitHub?

Trunk works with any CI provider, though its intelligent merge queue specifically integrates with GitHub's native merge queue feature. The flaky test detection, quarantining, and failure analysis operate independently of your CI system, so you can use Trunk's core features with GitHub Actions, GitLab CI, Jenkins, CircleCI, or others.

How does Trunk isolate which test caused a batch failure when running 100 PRs together?

Trunk uses auto-bisection to pinpoint the failing PR within a batch without running all 100 again. Once a batch fails, it splits the group and reruns smaller subsets until it identifies the problematic change, then surfaces that PR and blocks it from merging while others proceed.

Can Trunk quarantine flaky tests without removing them from the codebase?

Yes. Trunk automatically isolates unreliable tests so they no longer block CI, then collects diagnostic data about why they fail. The tests stay in your codebase; Trunk tracks them on a dashboard so your team can fix the root causes instead of deleting them or ignoring them.

Does Trunk integrate with Linear and Jira to file tickets for flaky tests?

Trunk integrates with both Linear and Jira for ticketing. You can configure it to automatically create or update tickets when tests become flaky or when AI-powered failure analysis detects patterns, so flaky test management connects directly to your issue tracking workflow.