14 March 2026

Our first AI-augmented TDD video

 AI/LLM/agentic coding guru Scott Werner reveals some intriguing "#prompt patterns" (my term...? Did I just invent a term???) when using #Claude Code (CC) to do Test-Driven Development (#TDD)

Notes & caveats:

(a) We're planning a "sequel" where we look deeper into the results of this session, because I'm not entirely confident that CC got everything right. And, it will give us the opportunity to showcase *how* one can investigate the results of a bigger bite (bigger than what us test-driven nerds are used to, anyway). We also hope to ask CC to make more architecturally-significant changes, e.g., persistence.

(b) The video style is--how shall I put this?--"rough & ready with a touch of retro."  My fault. I really do need to hire a video editor/producer. I recommend you watch at 1.25 speed, listen closely to everything Scott says, and ignore my awkward interruptions. 🤣

(c) Scott's interactions with CC seemed very natural, well-considered, and emergent. In one sense, it did feel like a mini-waterfall, because we asked CC to read the "PRD" and to build out a set of user stories all at once. OTOH, since progress was so rapid and feedback so easy to obtain, it also felt a lot like continuous flow, or what us old-timers thought of as #Agile (😱 "language...!") 

#AI #LLM #Agentic

Okay, enough of that. On with the show...!

https://youtu.be/Oz3KS9-Yohg

04 March 2026

Lowest-price copies of the book!

If you've been waiting for my new book to go on sale, YOU'RE IN LUCK!

Discount code ESSENTIALTDD confers a 35% discount off the list price of ISBNs 9780134494159 (print) or 9780134494364 (eBook) only when purchased on InformIT.com.

Standard disclaimers:

  • Offer does not apply to book + eBook “Best Value” or “Additional Savings” bundle.
  • Offer expires 11:59pm EST December 31, 2026.
  • Discount may not be combined with any other offer and is not redeemable for cash.
  • Offer subject to change.

https://www.informit.com/store/essential-test-driven-development-9780134494159