H4pplness

Use this skill whenever the user wants to create PowerPoint presentations with animations, transitions, and precise element control from JSON — or reverse-engineer an existing .pptx into structured JSON. SlideJ is a CLI that generates .pptx from JSON and parses .pptx back to JSON, enabling a full round-trip workflow. Trigger when: user wants animated slides, mentions 'slidej', needs to convert a .pptx to JSON for reading or editing, wants element-level animation control (fadeIn, flyIn, zoom, spin, wipe, etc.), or needs a programmatic slide generation pipeline. Also trigger when the user uploads a .pptx and wants to understand its structure, modify it, or recreate it with changes.