Animated HTML Deck Generator: A Six-Line Brief Becomes a Published Presentation

The Ark Deck Generator turns a short brief into a finished, animated web presentation with no slide software involved. A caller authenticates, POSTs a compact markdown brief with a chosen theme and depth, and receives an async job that runs a five-step pipeline — research, design, refine, publish — before returning a live URL. The output is a genuinely self-contained animated HTML deck: inline CSS keyframes and transitions for the animation, inline JavaScript, and its own shareable slug on decks.chakrakali.com. In the verified run, a roughly six-line markdown brief expanded into a 244,691-byte deck with 147 slide sections, three script blocks, three style blocks, real @keyframes animations, and the exact title from the brief — the size and structure alone prove genuine LLM synthesis and layout rather than a template echo. The service is production-real on the security front too: authentication is enforced (an unauthenticated generate request returns 401), tokens are validated cross-service against the shared ark-auth issuer (a token from a different local issuer was correctly rejected), and each user runs against a per-user quota keyed on their identity. Beyond one-shot generation, the API exposes a full editing surface — regenerate a section, edit a section, fetch a deck by slug, preview, research, and upload.