Recording of the visual regression run on app.universalpromptdesigner.com · Universal Prompt Designer — app walkthrough.

In this video· click a step to jump to it

A
Passed ✓

Test recording

Universal Prompt Designer — app walkthrough

53,981 ms · 92,308 pixels changed

We built this regression test for app.universalpromptdesigner.com — it's yours to keep, free.

Take this test with you

This is a real Playwright test, recorded against app.universalpromptdesigner.com. Claim it into your own workspace and re-run it on every deploy — free.


const shot = (n, slug) => `/tmp/s${n}_${slug}.png`;

// Block analytics noise
await page.route('**/*', async (route) => {
  const u = route.request().url();
  if (/hotjar|clarity\.ms|sentry\.io|analytics\.google|googletagmanager/.test(u)) {
    await route.abort();
  } else {
    await route.continue();
  }
});
+114 more lines — claim the test to get the full code.

Checks run

Run
✓
Visual
77.90%
Text
—
DOM
✓
Network
+136 −96
Console
16 new
A11y
Review
Perf
440 over
URL
✓
Variables
—
Full report
Log in →
92,308
Diff px
54s
Duration
Review
Accessible
WCAG 2.2
Review
Fast
Web Vitals

Notes from the demo run

AI-generated

Universal Prompt Designer is a structured AI prompt engineering tool built as a chat interface with two modes: Universal Prompt Designer (conversational) and Visual Prompt Architect (drag-and-drop). The interface surfaces suggested questions to orient new users and a credits system gates AI usage. The sidebar app-switching pattern cleanly separates the two tool modes.

Highlights
  • Dual-mode tool
    Switching between chat (UPD) and visual (Architect) modes serves both technical and visual learners
  • Suggested questions
    Pre-written FAQ questions onboard users to the tool without documentation reading
  • Credits system
    Visible credit counter creates clear usage accountability and natural upgrade prompt
  • Light/dark theme
    Theme persisted in localStorage; consistent cross-session UI preference
  • Professional use case framing
    Product positions prompt engineering as a business skill, differentiating from generic AI assistants
Friction points
  • 15-credit limit visible immediately
    New users see a low credit count before experiencing value — consider hiding count until 5 remain
  • Chat input label
    Textbox labelled What are we building is evocative but slightly ambiguous for prompt engineering newcomers

8 visual changes

Step 12,645 px changed
Before
Before
After
After
Diff
Diff
Step 219,075 px changed
Before
Before
After
After
Diff
Diff
Step 33,817 px changed
Before
Before
After
After
Diff
Diff
Step 43,817 px changed
Before
Before
After
After
Diff
Diff
Step 536 px changed
Before
Before
After
After
Diff
Diff
Step 624,921 px changed
Before
Before
After
After
Diff
Diff
Step 724,921 px changed
Before
Before
After
After
Diff
Diff
Step 813,076 px changed
Before
Before
After
After
Diff
Diff

Share this run

Earned · Lastest awards

Proof your app is not AI slop

LASTEST
starter
regressions
0
Badges stay live, ratchet upward, only downgrade on confirmed regression.
57,257 test runs recorded · 1,158 products tested with Lastest

This test was built for app.universalpromptdesigner.com — claim it free

One click copies the test and baseline screenshots into your own Lastest workspace. Re-run on every deploy and catch regressions before your users do — free, no card required.