STATE LENS · EXPERIMENTAL

Recorded save/reload observations from an authored synthetic app. Choose a checkpoint below. This page does not run against your app.

Add to your Playwright test · Broken control · Normal control · Source

Use it in your own app

Already use Playwright with Node22+? Download the one-file library (SHA256). Place it next to your test without replacing an existing copy, then import:

import { createStateLens } from './state-lens-v0.1.0-experimental.1.mjs';

Import createStateLens, select a known storage key and wrap your existing UI actions with lens.step. Keep your normal assertions. Attach the local HTML in finally.

Copy the integration and full example · Measurements and limits · Report a trial or blocker

Explicit native storageState snapshots captured the same selected values in our controls. Native Trace records UI actions and screenshots. This experiment adds selected per-step field differences and screenshots in one HTML. Reports contain selected app data and stay local unless shared.

SELECTED APPLICATION DATA · LOCAL OBSERVATIONS

The same flow, with persistence intact.

UI steps beside the data they leave behind.

Application screenshot at this checkpoint

Changes since the preceding checkpoint

Selected values

Snapshots are observations, not database commit timestamps, causal proof or assertions that all data is correct. INCONCLUSIVE is not absent or PASS. This file includes only the selected data and captured viewport, and stays local unless you share it.