Chapter 10. Sous's Doom Loop
Plan → iterate → improve: the professional Claude workflow

Chapter title card with the chapter's host character and the day of the countdown.
What you'll learn in this chapter
- Pick the right Claude surface for each kind of work
- Give Claude a memory and rules with CLAUDE.md, docs, hooks, skills, subagents and MCP
- Run the plan → slice → build → verify → commit → improve loop on a real feature
- Write feature, bug and review prompts that work the first time
- Spot a doom loop early and get out of it in under five minutes
Inside
- Why "make it support many cafés" went wrong
- Pick your Claude surface
- Give Sous a memory and rules
- The loop
- Prompts that work the first time
- When things go wrong
- From vibe coding to agentic engineering
- Lab: support many cafés, properly
- What you've learned
Checking your ticket at the door…