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quality-engineering-test-healing

Failure taxonomy and allowed/forbidden repairs for a failing E2E test. Use when a Playwright/Maestro/Detox/XCUITest/Espresso/Appium test fails and you must decide whether to repair the test or route to a real bug.

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Works withPlaywright

Run score Not tested

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Files included (6)

  • SKILL.md2.6 KB
  • evals/evals.json2.8 KB
  • references/failure-taxonomy.md1.4 KB
  • references/forbidden-repairs.md712 B
  • references/repair-catalog.md935 B
  • references/verdict-contract.md818 B

SKILL.md (original)

Review the instructions the agent will receive before you install.

Quality Engineering: Test Healing

Priority: P0 (CRITICAL)

Failure Classes

SELECTOR_DRIFT (id/locator changed) · TIMING_SYNC (race/wait, no state change) · DATA_ENV (fixture/seed/env stale) · INFRA (network/runner/flake) · REAL_REGRESSION (product behavior actually changed).

Classify from evidence: trace/screenshot/DOM diff supports a drift/timing/data explanation, or the product diff shows an intentional behavior change (REAL_REGRESSION).

Allowed Repairs

Move the locator up the selector ladder (e.g., getByRole if the ID changed); replace a sleep with an explicit state wait; fix a stale fixture/seed; retry only for INFRA.

Forbidden Repairs

Never weaken an assertion. Never add test.skip/fixme; a test that must stop gating goes to quarantine per quality-engineering-flaky-triage with a ticket + expiry, and keeps running. Never widen a matcher. Never inflate a timeout by more than 2x. Never blind --update-snapshots. Never catch-and-continue. Never touch production code — that is REAL_REGRESSION, not a heal.

Verdicts

HEALED (repair verified by 3 consecutive green reruns, ASSERTION_DELTA: none) · REAL_BUG_DO_NOT_HEAL (route to dev-fix) · QUARANTINE_CANDIDATE (flaky, route to flaky-triage) · BLOCKED (no evidence artifact, or no stable locator target: route to specialist-testid-inserter).

Red Flags

"the assertion was too strict anyway" · "the product changed so update the expected value" · "just add retries so it goes green" — do not heal with these rationalizations. All three are REAL_BUG_DO_NOT_HEAL or QUARANTINE_CANDIDATE in disguise, never HEALED.

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