Developer field guide

Install an agentic coding CLI on Friday evening and ship a real feature by Sunday.

One Weekend with Claude Code — A Developer's Field Guide to Agentic Coding

24 pages Screen-friendly A5, prints on A4 and US Letter Read on screen, or print First Edition, July 2026 Version 2026-07

You have seen developers hand a whole task to an AI in the terminal and watch it edit files, run tests, and open a pull request. This 24-page field guide is how you get there yourself — over one weekend, on a real repository of your own: install and a first safe session Friday, teaching the tool your project Saturday, and one real feature from empty diff to merged commit on Sunday, with the guardrails set and the bill kept sane throughout.

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What's inside

  • Friday: what an agentic CLI actually changes, a clean install, and a first read-only session that can't touch anything
  • Saturday: choosing the right first repository, and a real CLAUDE.md walkthrough that teaches the tool your project
  • The first real task, reviewed diff by diff — and what to do the moment it goes sideways
  • Permissions and guardrails: deciding what the tool may touch, and proving the fence holds before you trust it
  • When to interrupt and when to let it run — reading the session instead of hovering
  • Sunday: one complete feature end to end, commit to done, with a plan-before-code habit
  • Keeping the bill sane — a short pointer to the cost levers (covered in depth in our companion, The Token-Smart Developer)
  • "What broke for us": the real snags hit while writing the book, so you recognise them
  • A verified-commands appendix and a plain-language glossary

Who it's for

  • Developers curious about agentic coding who learn best by doing one real project
  • Anyone who wants permissions and guardrails set before trusting an agent with their code

Who it's not for

  • Complete non-coders — a real repository of your own is the whole point; Ship Your First App is the gentler start
  • Anyone unwilling to pay for the tool — the examples require a paid Claude plan, though the book names free-tier alternatives where they apply

The tool used in the examples requires a paid Claude plan (from roughly US$20/month as of July 2026); the book says so on page one and names the free-tier alternatives where they apply. Every shell command, flag, and install URL was executed against the version current the week the book was finalised (Claude Code 2.1.x, July 2026), and the book tells you to run claude --version and check the changelog, because these tools update weekly.

Guidance, not gospel — this is a practical organisation tool, not legal, tax, medical, or religious authority.

Held to The CalmKit Standard

First Edition, July 2026 ·

Drafted with AI assistance and then reviewed and curated by a real person who's been through it.

Where rules can change, this guide points you to the source that decides:

  • Claude Code changelog

What the Standard commits us to →

One Weekend with Claude Code
24 pages · Instant PDF · $14.99$11.24