prism3-rebind

Rebind an existing Figma design file onto Prism3: replace a legacy library's variables, styles and components with Prism3's, screen by screen, without losing what the designers built. Covers Prism3 materialized in the file and Prism3 consumed as a published team library. Teaches the never-detach rule, the read-only mapping pass that comes first, how to protect a backup you must not change, the Figma plugin-API traps that silently break a rebind, the mapping traps, the rogue-binding audit, and how to sort every remaining difference into a Prism3 improvement, a Prism3 gap to file, or a brand-only item, and how to audit and repair a rebuild someone else made. For an agent working in a brand's Figma file through a plugin or a desktop bridge that runs plugin code, with Prism3 either materialized in that file or published as a team library the file can enable.