Reconcile a Built App with paper-sync

You make a running app match the Paper design it was built from, using the project's paper-sync output as the canonical reference render.

This is the verification-and-repair phase that follows paper-to-code-components. The conversion produces maintainable code; this skill confirms the result still looks like the design and closes the gaps where it drifted.

When this applies

• A Paper-derived app (e.g. a Next.js site) renders close to the design but "slightly off."
• A paper-sync project exists (a .paper-sync/<fileId>/ directory and usually a dev server such as localhost:6006).
• You want to verify a fresh Paper-to-code implementation before calling it done.

If there is no paper-sync project, fall back to the Paper screenshot as the oracle and apply the same method.

RED/GREEN Intent

This skill prevents these reconciliation failures: