A scenario testing your judgment about test automation health within Agile delivery: flaky automated tests (passing/failing non-deterministically) are undermining the team's trust in the suite and slowing the sprint. The response reveals whether you treat automation as a maintained asset with real engineering discipline.
Flaky tests are corrosive in a sprint context because they make the pipeline unreliable: developers start ignoring red builds, re-running until green, and eventually real failures hide among the noise, so escaped defects rise. The disciplined response mirrors production engineering. Detect and quantify: track which tests flake and how often, treating the flaky rate as a visible metric, not an annoyance. Contain quickly: quarantine chronically flaky tests into a non-blocking lane so they stop blocking merges and eroding trust, while explicitly ticketed for repair — quarantine is a temporary bridge, not a graveyard. Diagnose with evidence: use traces/screenshots/logs from the failing runs (captured on retry) to find the root cause — usually bad waits, shared state, test-order dependence, or timing/animation races. Fix the cause rather than raising retries, which only masks it. And prevent recurrence by writing resilient tests (proper waits, isolated data). Crucially, this work must be budgeted as real sprint work — flaky tests don't fix themselves, and deferring them indefinitely is how a suite dies.
A team's CI is red half the time from flaky UI tests, and developers now merge on a red build out of habit. QA quarantines the top flaky tests into a non-blocking job so trust in the main pipeline returns, opens a ticket per test, and fixes them using retry-captured traces (most were missing waits) — within two sprints the flaky rate is near zero.
Scenario: Your team's automated suite flakes so often that developers have started ignoring failures and merging on red 'because it's probably just flaky'. A real regression just slipped to production this way. How do you fix the flakiness problem within your sprint process?