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Public story · 2026-03-01 · source-backed
The fourth chapter of Willison's Agentic Engineering Patterns guide addresses cognitive debt by having agents build interactive animated explanations of their own code. Martin Fowler endorsed the full guide. The methodology is now four chapters: (1) code is cheap, (2) red/green TDD, (3) hoard solutions, (4) interactive explanations.
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Simon Willison launched a multi-chapter guide collecting practical patterns for working with coding agents. Chapters include "Writing code is cheap now," "First run the tests," "Red/green TDD," "Hoard things you know how to do," and the new "Interactive Explanations" chapter f...
The crystallizing reference for agentic engineering. Four chapters: "Code is cheap now," "Red/Green TDD," "Hoard things you know how to do," and the new "Interactive Explanations" — having agents build animated visualizations to fight cognitive debt. Endorsed by Martin Fowler.
Third chapter of Willison's evolving Agentic Engineering Patterns guide (endorsed by Martin Fowler). Core technique: maintain a personal solutions library and feed proven examples to agents for recombination. This joins Red/Green TDD and "Writing code is cheap now" as the thre...
Simon Willison released the first two chapters of a living guide to Agentic Engineering Patterns. Chapter 1: "Writing code is cheap now." Chapter 2: "Use red/green TDD" -- the "four-word prompt that unlocks substantial engineering discipline." Martin Fowler linked to it within...
New chapter in the Agentic Engineering Patterns guide. "Cognitive debt" — when developers lose understanding of agent-generated code — mirrors technical debt at the comprehension level. Prescribes linear walkthroughs, animated explanations, and interactive interfaces. Coding a...
simonwillison.net — Willison has been publishing 5-8 posts per day for the last week, and is now consolidating into a structured guide. Two chapters published: "Writing code is cheap now" explores the economic implications when implementation approaches zero marginal cost — th...
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