`5x/sweep-1.md`

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# 5x sweep 1 — 2026-07-13

Target: http://127.0.0.1:9821/preview.html (PAIRS_CLIP_DEFAULT=1, visual-search :9914 up)

## Verify (3x six-way)
- [PASS] M1 HTTP contract (200 text/html)
- [PASS] M2 headless render (574KB screenshot)
- [PASS] M3 automation E2E (0 JS errors)
- [PASS] B4 Chrome / [PASS] B5 Safari / [PASS] B6 Firefox
- [FAIL] Phase C clickthrough: 0/10 — ALL timeouts

## Caught
1. Phase-C failure is a HARNESS MISMATCH, not a build defect: the shared
   ~/.claude/skills/3x/clickthrough.js is hardcoded for the wallco design-curator UI
   (#fSearch, .vbtn.dw/.wpb/.both/.skip, Board toggle, density slider) — none of those
   selectors exist on pairs-well's preview.html, so every step timed out. The six real
   verification layers all passed with zero console errors.

## Fixed
- Wrote 5x/clickthrough.mjs — a pairs-well-specific clickthrough that exercises the
  ACTUAL controls (#sku, #load, button[data-sku] sample chips, paint-brand checkboxes)
  and additionally asserts every rendered product link matches /products/<handle>.
  Sweeps 2+ use: 3x runner (six-way) + this script as Phase C.