Field notes·28 March 2026 · 8 min read
The week our flaky-test rate dropped from 18% to 2%
Our CI was failing 18% of runs to flakes we'd stopped looking at. One week, four changes, no new tests. Here's what we actually did.
flaky-testscypressci-cd
Opinions·27 January 2026 · 8 min read
The flaky-test tax no one talks about
Flaky tests don't cost you in CI minutes. They cost you in developer trust. And the compounding interest on lost trust is the most expensive tax in engineering.
flaky-testsci-cdculture
Comparisons·23 January 2026 · 9 min read
GitHub Actions vs CircleCI for test suites: my pick after running both
I've run production Cypress and Playwright suites in both GitHub Actions and CircleCI for the last year. Here's where each one pulls ahead, where each one tripped me up, and the single factor that should decide it.
github-actionscirclecici-cd
Opinions·4 November 2025 · 8 min read
Load tests in CI: the honest version
The pitch: 'run load tests on every PR.' The reality: you'll have flaky thresholds in three days and disabled tests in two weeks. Here's the four-tier strategy that actually survives.
performance-testingci-cdk6opinion