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Designing agentic loops

simonwillison.net/2025/Sep/30/designing-agentic-loops

What Jamie wrote

Great read from Willison on building agents. Must read for, well, everyone.

A critical new skill to develop is designing agentic loops.

One way to think about coding agents is that they are brute force tools for finding solutions to coding problems. If you can reduce your problem to a clear goal and a set of tools that can iterate towards that goal a coding agent can often brute force its way to an effective solution.

Good stuff.