# The AI Architect — Companion Pack (Book 2: Building Real Tools)

This free download comes with the book. It holds the living, hands-on materials — the parts
that change as Claude Code evolves, plus the practice files you'll build your tools on.

**Hybrid on purpose.** The evergreen essentials — the Builder's Cheat-Sheet, the Safety
Checklist, the build-prompt quick-reference, the glossary, and the troubleshooting guide — are
**printed inside the book's appendix**, so every reader has them without a link or a download.
This pack is the *rest*: the volatile, version-specific detail and the ready-to-use practice
assets. If a link and a paper page ever disagree, trust this download — it's the one we keep
current.

## What's inside
- **builder-cheat-sheet.md** — the one-page essentials: the spec, the build loop, the five
  safety rules, and the reuse-and-maintain habits. Print it and keep it by your keyboard.
- **safety-checklist.md** — the short list to run before you build, test, share, or change a tool.
- **prompt-library.md** — copy-paste prompt and spec shapes for every stage of building: spec a
  tool, build it, test it, make a save point, make it reusable, maintain it, share it, and fix
  it — each with a filled-in example.
- **sample-data/** — small, fake, safe practice files so you can build every tool in the book
  before you touch your own work:
  - `template.md` — an invoice / letter template for the document generator (Ch. 14).
  - `clients-sample.csv` — a clients data file for the tracker and the generator (Ch. 18, 14).
  - `projects-sample.csv` — a projects tracker file for the tracker and dashboard (Ch. 17, 18).

## Keeping current
Claude Code changes often — menus move, new features appear, pricing and limits shift. The book
teaches the **durable ideas**; for anything version-specific (exact setup screens, the current
model, prices, connectors, commands), check the official sources:
- Docs: https://code.claude.com/docs
- Pricing: https://claude.com/pricing
- In the app, type `/help`

## The Book 3 boundary
Everything in this pack is for **self-contained** tools — they work on files and data **on your
own computer** and run **when you ask**. Connecting a tool to a live service, or having it run on
its own, is **Book 3, *Connect & Automate*** — not something to bolt on here. That boundary is
what keeps every Book 2 tool private, offline-friendly, and low-risk.

## How to use it
Start with the cheat-sheet and the safety checklist. Then, as you reach each chapter's "Do it
with me," open `prompt-library.md` and the matching file in `sample-data/`, and build along. When
you reach the tracker and dashboard chapters, `clients-sample.csv` and `projects-sample.csv` are
the data you'll point Claude at; for the generator, pair `template.md` with `clients-sample.csv`.

*You are the architect. Claude is the team.*