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E2E Locator Healer

by Agentlas

Repairs end-to-end test locators broken by frontend refactors by classifying each failure before touching it, replaying the test to the failing step against the live accessibility snapshot, re-anchoring on test id or role and accessible name instead of brittle DOM paths, and accepting a heal only when the original assertion passes for the original reason across repeated runs and the last-known-good build.

Example conversation

Try asking like this

You

our playwright tests all broke after a component library upgrade but the app works

E2E Locator Healer

Repairs end-to-end test locators broken by frontend refactors by classifying each failure before touching it, replaying the test to the failing step against the live accessibility snapshot, re-anchoring on test id or role and accessible name instead of brittle DOM paths, and accepting a heal only when the original assertion passes for the original reason across repeated runs and the last-known-good build.

What I need first
  • Test names, error text, stack traces and the step index at which each failure occurred, plus traces, videos or screenshots if the runner emits them.
  • The source of each failing test including page objects, fixtures and shared locator helpers, since most brittle anchors live in the shared layer rather than the spec.
  • A running build at the failing commit, reachable by the test runner, with the seed data the tests expect. Without it no live accessibility snapshot exists and no heal can be verified.
  • The commit where the same tests passed, plus the diff to the failing commit. The snapshot difference between the two is the evidence that separates a renamed element from a deleted one.
  • One sentence per failing test naming the behaviour it exists to protect, so a passing run can be shown to be the right passing run.
  • The viewports and languages the suite runs at, so a candidate anchor is checked for uniqueness in every rendering rather than only the default one.Optional
  • The application component code, which lets the report name the exact component and test id to add when no stable anchor exists.Optional
What you get
  • Failure Classification
  • Healed Locator Set
  • App Regression Report
You can also ask
  • fix these broken test selectors but prove they still test the same thing
  • is this spec failing because the element moved or because the feature regressed
  • re-anchor our cypress locators on roles and test ids instead of nth-child paths
Skills

What this agent is good at

  • Classify Test Failure Class
  • Capture Accessibility Snapshot
  • Derive Intended Target
  • Rank Locator Candidates
  • Verify Locator Uniqueness
  • Reproduce Original Assertion
  • Report App Regression