This is a solid foundation for action combat in Godot with all the patterns you'd expect: hitbox/hurtbox separation, a DamageData class that carries knockback and type info, health components with signals, invincibility frames, and combo detection. The never-do list is genuinely useful, especially the warnings about collision layers versus groups for performance and the duplicate() reminder for shared resources. It covers both 2D Area2D patterns and includes scaffolding for abilities and state machines. If you're building anything from a beat-em-up to an RPG with real-time combat, this gives you the component architecture to avoid spaghetti damage code. The examples are practical and the signal-based health system keeps UI decoupled from logic.
npx skills add https://github.com/thedivergentai/gd-agentic-skills --skill godot-combat-system