additive-only-skill-installation-enables-clean-rollback
Installing a new skill as purely additive (new directory + orchestrator section appends only, zero modification to existing code) makes rollback trivial: rm -rf ~/.claude/skills/<skill>/ plus reverting the appended orchestrator sections. This pattern satisfies Law 13 (Graceful Recovery) with zero risk to the existing system and should be the default approach for all new skill integrations.