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Public story · 2026-03-01 · source-backed
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.
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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 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/gree...
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...
Ryan Lopopolo from OpenAI Frontier went on the Latent Space podcast and described something I've been circling around for months. His team of three engineers built Symphony, OpenAI's internal orchestration layer, as a million-line Elixir codebase. Not one line was written by a...
— "The defining characteristic of a coding agent is that it can execute the code it writes." Never assume LLM-generated code works without verification. Patterns for python -c edge case testing, /tmp demo files, browser automation with Playwright/Rodney. Red/green TDD: when ag...
Spotify's Portal team published Xirp on August 10: a vendor-neutral agentic development environment that manages concurrent sessions across Claude Code, Gemini CLI, and Codex, each session isolated in its own git worktree so dozens of agents can work the same codebase without...
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