diff --git a/AGENTS.md b/AGENTS.md
index 1b0d89ca..25703130 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -99,7 +99,7 @@ else:
 
 ## Optional Protocol Extensions
 
-These protocols are opt-in upgrades for `DecisioningPlatform` subclasses. Implement them to unlock advanced framework behaviour.
+These protocols are opt-in upgrades for `DecisioningPlatform` subclasses. Implement them to unlock advanced framework behavior.
 
 | Protocol | Method | Domain | Description |
 |---|---|---|---|