Simon Willison’s Weblog
Subscribe
Sponsored by:
Teleport — Secure, Govern, and Operate AI at Engineering Scale.
Learn more
Guides
: Agentic Engineering Patterns
Patterns for getting the best results out of coding agents like Claude Code and OpenAI Codex.
Red/green TDD
Disclosures
Colophon
©
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026