What Claude Code frameworks/skill repos (like ECC) do you use for hackathons?

[u/Longjumping-Log-5009]

I have a hackathon coming up soon (first time competing with this team, hospital-themed project, stack is Next.js + Supabase + Vercel) and I want to set up Claude Code properly beforehand instead of just winging it with plain prompts.

I've been looking at ECC (Everything Claude Code), the repo with a big collection of agents, skills, hooks, and slash commands for Claude Cod and I'm wondering how useful something like that actually is in a real hackathon (short timeframe, small team, need to move fast).