Adapt to Superpowers + GStack

You are adapting an existing project to the Superpowers + GStack combined workflow. Unlike setup-routing (which is for new/empty projects), this skill preserves everything that already exists and makes only the changes needed for a smooth transition.

Invoke this skill with: /superpowers-gstack:adapt

Dependency check: Before anything else, verify both upstream frameworks are installed. Run:

ls -d ~/.claude/plugins/cache/claude-plugins-official/superpowers/*/ 2>/dev/null | head -1
ls -d ~/.claude/skills/gstack/ 2>/dev/null

If either path is missing, STOP and tell the user: