A regression suite should help a team make a release decision. If every failure starts a long investigation into whether the test can be trusted, adding more tests may simply add more investigation.
Treat the existing suite as a feedback system. Its value depends on whether the right person receives a useful signal early enough to act. Test count alone does not describe that experience.
Follow one failure from start to finish
Pick a recent pipeline failure and reconstruct the path from the first red result to a decision. Record how long the test ran, how long it waited for attention, who investigated it, whether it reproduced, and what changed as a result.
Classify the cause using evidence: product defect, unstable test, environment, data dependency or an unresolved category. “It passed on retry” is an observation, not a root cause. Preserve the first failure rather than overwriting it with the final green result.
Look for repeated sources of uncertainty
Compare several failures before choosing a fix. Shared mutable data, ordering assumptions, timing problems and brittle selectors need different remedies. A single retry setting cannot resolve all of them.
For browser tests, Playwright’s official best practices describe isolation and resilient locators. Those practices are useful inputs to an investigation; they do not replace understanding your application’s particular failure pattern.
Prioritise by decision cost
For each recurring failure, estimate how often it interrupts the team, the effort required to diagnose it and the product risk it obscures. A small group of noisy checks may consume more attention than a large group of slow but reliable ones.
A useful repair backlog contains the observed failure, suspected cause, proposed fix, owner and validation method. Keep uncertainty visible. Where the evidence is weak, the next task may be improving diagnostics rather than changing the assertion.
Quarantine deliberately
Removing an unreliable check from a release gate can restore a usable signal, but it also removes coverage from that gate. Record the risk, keep the test visible, assign an owner and set a review date. Decide how the covered behaviour will be assessed while the check is out of the gate.
Avoid an unowned quarantine folder. The decision is temporary risk acceptance, and should remain visible to whoever owns release quality.
Check that the repair improved the workflow
Measure first-run reliability, time to understand a failure and maintenance effort over a comparable period. Keep the relevant product and pipeline changes in the record so you do not attribute every improvement to the repair.
The goal is useful feedback with less avoidable effort. Our Test Automation Optimization service starts with your current suite and identifies the changes most likely to improve that feedback loop.