Test Quality Definition of Done

No hard waits (waitForTimeout, cy.wait(ms)); rely on deterministic waits or event hooks.
Each spec <300 lines and executes in ≤1.5 minutes.
Tests are isolated, parallel-safe, and self-cleaning (seed via API/tasks, teardown after run).
Assertions stay visible in test bodies; avoid conditional logic controlling test flow.
Suites must pass locally and in CI with the same commands.
Promote new tests only after they have failed for the intended reason at least once.

Source: Murat quality checklist.