Hoard things you know how to do – Agentic Engineering Patterns – Simon Willison’s Weblog

March 2, 2026

Text discussing productivity tips with coding agents, highlighting "hoard things you know how to do" and understanding sof...

Many of my tips for working productively with coding agents are extensions of advice I’ve found useful in my career without them. Here’s a great example of that: hoard things you know how to do.

A big part of the skill in building software is understanding what’s possible and what isn’t, and having at least a rough idea of how those things can be accomplished.

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I think this is a really good observation by Simon Willison that knowing what is broadly possible and perhaps more importantly what is possibly impossible are very important capabilities when working with agentic systems.