ENGINEERING
Flaky-vs-Real Triage via Sentry Correlation
When a GitLab test fails, checks whether Sentry recorded a matching production error in the same code path.
How it runs
The automated pipeline, trigger to output.
- TriggerGitLab pipeline failed webhookGitLab
- ActionQuery Sentry for matching prod errors in same pathSentry
- LogicBranch: correlated regression vs flaky-only
- ActionOpen PagerDuty incident for real regressionsPagerDuty
- OutputLabel uncorrelated failures flaky::review in GitLabGitLab
What it does
Distinguishes flaky failures from real regressions by cross-referencing each failing test against live Sentry issues touching the same file or module. A failure with a correlated production error is treated as a real bug and paged out; a failure with no production signal is labeled flaky for quarantine review.
When to use it
Use it when blanket-quarantining failing tests risks hiding real regressions. This adds a production-evidence check before anything gets silenced.
How it works
- 1A GitLab pipeline-failed webhook delivers the failed test list and changed files.
- 2For each failure, a Sentry query looks for unresolved issues whose stack frames touch the same source path within the recent release window.
- 3A logic branch splits failures into "correlated with prod error" versus "no production signal."
- 4Correlated failures trigger a PagerDuty incident with the Sentry issue and pipeline links attached.
- 5Uncorrelated failures get a GitLab `flaky::review` label and a comment noting no matching Sentry activity.
Set it up
What you configure once, before turning it on.
- 1Connect GitLabRepos, MRs, pipelines, registry.
- 2Connect SentryErrors, performance, releases.
- 3Connect PagerDutyIncidents, on-call, escalations.
- 4Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 5Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 6Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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