Revision Sheet
Test What Matters
Editor transform tests should assert both text output and selection range because cursor behavior is part of the learner workflow.
Plan Persistence
Saved snippets need versioned local storage, language labels, defensive parsing, conflict protection, empty states, and compact UI before expanding scope.
Close The Arc
Volume 9 now has a practical path to Q450: snippets, persistence polish, PDF refresh, final QA, and a capstone.