This workflow treats proof as evidence that another person can inspect. A passing build is useful, but it does not tell a visitor whether the page feels coherent, or whether the real user journey actually works.
design-proof and acceptance-proof exist to answer different questions.
design-proof
design-proof asks whether the page is compositionally strong across desktop, wide desktop, and mobile. It fails if layout, sequencing, whitespace, or hierarchy breaks down.
acceptance-proof
acceptance-proof asks whether the important journey can actually be completed in a browser. It expects screenshots, logs, and a clear pass or fail result.
Why the distinction matters
You can have a page that technically works but still feels confusing or weak. You can also have a beautiful page that hides a broken interaction. The workflow keeps both checks separate so neither gets masked by the other.