Setup Rules Ex

Scaffold the two files that enable the rules-ex extended-rules system for this project. Both files are templates — they will not be overwritten if they already exist. The canonical template content lives in this skill's assets/templates/ folder (also used by the setup-all skill's Phase 4 — treat it as the single source of truth and edit it there, not inline in either SKILL.md).

What gets created:

• .claude/rules/rules-ex-authoring.md — a native path-scoped rule that auto-injects an authoring guide whenever you Read/Edit a file under .claude/rules-ex/. Required so the guide fires for the current repo (native .claude/rules files only govern the repo they live in).
• .claude/rules-ex/README.md — explains what the rules-ex folder is and how to author rules in it. Has no paths: front matter intentionally, so the hook ignores it.

Steps

1. Read .claude/rules/rules-ex-authoring.md.

   • If it already exists, display its path and current contents, then note it was left unchanged.
   • If it does not exist, read assets/templates/rules-ex-authoring.md (in this skill's folder) and write its exact contents to .claude/rules/rules-ex-authoring.md.

2. Read .claude/rules-ex/README.md.

   • If it already exists, display its path and current contents, then note it was left unchanged.
   • If it does not exist, read assets/templates/rules-ex-readme.md (in this skill's folder) and write its exact contents to .claude/rules-ex/README.md.

Output Format

Print a summary table after completing both steps:

Then remind the user:

• Add your own cross-cutting rules as *.md files under .claude/rules-ex/. Each file must have a paths: front matter (workspace-relative globs) — see the authoring guide that auto-injects when you edit files there.
• The inject-extended-rules hook fires on Read/Edit/Write; rules take effect immediately in the current session without a restart.