Cianplan

Level 6: Applied: cases, FDE scenarios, mocks · L6.3 AI-era cases

Enterprise RAG assistant

Design multi-tenant RAG with ACLs, freshness, citations and evals.

15 min · Pro

What you take away

  • Twelve queries a second over 200M chunks: this case is about correctness, not scale, and saying so early is most of the answer.

And 3 more inside the class, in Pro.

How the class is laid out

  1. The prompt
  2. Requirements and the numbers
  3. The design
  4. Three decisions
  5. The twist
  6. Check your understanding