Reverse Skill Codex adapter

This plugin is an optional Codex entry point. The repository remains the canonical, client-neutral implementation.

When the current workspace is the reverse-skill repository:

1. Read RULES.md at the repository root.
2. Run the platform-native skills/scripts/master-route entry with the user's task to select the PRIMARY skill from skills/config/routing.json.
3. Before any target action, create and validate work/<case>/scope.md with the platform-native case-init and case-guard scripts.
4. Open the selected skills/<PRIMARY>/SKILL.md and follow its task-specific instructions.
5. Resolve tools only through the generated skills/tool-index.md; do not register MCP servers or install tools unless the user requested that action.

If the repository is not the current workspace and no local repository path was supplied, explain that this adapter does not bundle a second copy of the router. Ask the user to open or clone https://github.com/zhaoxuya520/reverse-skill and then continue from its RULES.md.

Do not treat the presence of this plugin, a target name, or a sample path as authorization. Authorization comes from the repository's scope contract.