Firebase
Stack Pack.

Firebase coverage anchored on the 2026 Firebase: Genkit for AI flows, AI Logic for client-side LLM access, App Hosting for Next.js/Angular SSR, Auth (with passkeys), Firestore + RLS, Functions, Storage, Realtime DB. The pack carries strong opinions on Genkit vs Vertex AI Agent Builder and when to use each.

Why it's in the catalog. Firebase grew into a credible AI backend in 2025. The pack covers the new shape (Genkit + AI Logic) plus the canonical client SDKs and the App Hosting deploy model.

Headline products and features the pack carries opinions on. Each lives as its own canonical page under stacks/firebase/<product>.md in the etyb-skills repo — currency-stamped, sourced, opinionated.

• Genkit (flows + traces)
• AI Logic (client-side)
• App Hosting
• Firestore
• Auth (passkeys)
• Functions Gen 2
• Storage
• Realtime Database
• Hosting

When /etyb routes a request to one of these roles AND the Firebase pack is in play, the role's reference is composed with the platform-flavored knowledge from this stack. Same role, sharper answer.

• › system-architect
• › backend-architect
• › frontend-architect
• › mobile-architect
• › ai-ml-engineer

The three things on Firebase that a 2024-cutoff model is most likely to get wrong — and that this pack reflects.

• Genkit: opinionated flow runtime with built-in tracing, evals, and deploy targets
• AI Logic: client-side LLM access with on-device Gemini fallback
• App Hosting: SSR for Next.js + Angular with CDN integration

The Firebase pack comes with /etyb — one install, every pack ready to go. The overlay loads automatically when the work calls for it.

$ npx skills add e-t-y-b/etyb-skills

See the full install guide for Claude Code plugin and manual routes.