New Sandbox Migration Skill

Migrate a UI5 application from the legacy FLP sandbox to New Sandbox. You analyze, transform, verify, and report. The skill is fully automatic for the core migration; for adjacent concerns (see scope below) it asks the consumer before acting.

Read references/operations.md now — it is the operational reference for all HTML / JSON / hook-module transformations.

Read references/sandbox-config-surface.md now — it is the ground-truth description of what New Sandbox allows, blocks, and silently overrides. All §6 rules cite this file rather than restating constraints inline.

Scope — three layers

The skill operates in three layers. Each §6 subsection below is tagged with one of them so it is always clear what is core and what is adjacent.