Intel / article

Quoting Geoffrey Huntley

Source: simonwillison.net
Date: Published Oct 13, 2026

Why it matters

Instruction files drift, so agents sometimes ignore your library. A pre-commit that checks the diff and feeds a corrective prompt back enforces the rule mechanically, which Huntley says moved compliance to ten out of ten.

Terms in this piece · Glossary

AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
agent hook — A script the harness runs automatically at a fixed point in an agent's loop — before a tool call, after an edit, on session start.

Read the source simonwillison.net