Simon WillisonI've published the first two chapters of a new guide to Agentic Engineering Patterns - coding practices and patterns to help get the best results out of coding agents like Claude Code and OpenAI Codex https://simonwillison.net/2026/Feb/23/agentic-engineering-patterns/
"Writing code is cheap now" talks about the central challenge of agentic engineering: the cost to churn out working code has dropped to almost nothing, how does that impact our existing intuitions about how we work, both individually and as a team? https://simonwillison.net/guides/agentic-engineering-patterns/code-is-cheap/
Martin 
@simon
Cory Doctorow also recently pointed out that cheap code generation is far from enough. Rather is every line of code a liability:
https://pluralistic.net/2026/01/06/1000x-liability/#graceful-failure-modes