Part 6

Verification And Safety

The discipline that separates people who ship working software from people who confidently ship broken software. Reading code you didn't write, git as a seatbelt, the verification habit, secrets management, data privacy, and what production deployment actually looks like for a small business. The most underrated Part in the curriculum, and the one most readers skip first.

Start with section 6.1 →
  1. 6.1

    Reading Code You Didn't Write

    The single most important skill for vibe coders. Five things to spot in agent output, and the four-step workflow for not shipping the bug you didn't notice.

  2. 6.2

    Git Discipline For Ai-generated Code

    Git is your seatbelt. Commit before every agent run, branch per feature, read every diff, write commit messages the next session can understand.

  3. 6.3

    Testing Without Being A Tester

    The verification habit, made operational. Three to five happy paths, three to five edge cases, one to two failure modes. Eight tests, manually run, catch 90% of the bugs.

  4. 6.4

    Secrets, Api Keys, And What Not To Put In A Prompt

    The rules: never paste real secrets into a frontier model chat, never commit .env, never hardcode keys. A leaked secret is AFD by default.

  5. 6.5

    Data Privacy: When Local Models Are Non-negotiable

    Some data should never leave your machine. PHI, PII at scale, financial data, trade secrets, NDAs. The decision tree, and why most regulated data is also AFD.

  6. 6.6

    The Deployment Cliff: Making It Run While You Sleep

    Building an agent on your laptop is one thing. Having it work at 3 AM when you're asleep is a different thing. The Mac mini setup for production.