Tool Rename Deprecation When a tool or tool set reference name is changed, the old name must always be added to the deprecated/legacy array so that existing prompt files, tool configurations, and saved references continue to resolve correctly. When to Use Run this skill on any change to built-in tool or tool set registration code to catch regressions: - Renaming a tool's - Renaming a tool set's - Moving a tool from one tool set to another (the old path becomes a legacy name) - Reviewing a PR that modifies tool registration — verify no legacy names were dropped Procedure Step 1 — Identify What…