ux-proof captures desktop browser evidence for Codex Mobile sessions where visual correctness matters. The posted screenshot should be desktop by default because the user can already open the live mobile view through the ngrok link.
py .\skills\mobile-codex-dev\scripts\mobile_dev.py ux-proof --root . --url http://127.0.0.1:5173py .\skills\mobile-codex-dev\scripts\mobile_dev.py ux-proof --root . --url http://127.0.0.1:5173 --include-mobile- Desktop screenshot at
1440x900. - Optional mobile diagnostic screenshot at
390x844only when--include-mobileor--mobile-onlyis passed. - Page title and final URL.
- Console warnings and errors when Playwright tooling is available.
- Failed network requests when available.
- Basic viewport metrics.
UX proof replaces vague visual claims with screenshots and browser evidence. The user can inspect both views from a phone: ngrok for the live mobile-responsive page, desktop screenshot for the wide layout.