diff --git a/AGENTS.md b/AGENTS.md
index 4ff5b1e75..7ab98087d 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -65,7 +65,6 @@
 
 * Keep them short: one line by default, three at most.
 * Say **why**, never what. If the code already says it, delete the comment.
-* Do not document rejected alternatives, past bugs, measurements, or how you arrived at the code. That belongs in the commit message or the PR.
 * A comment must never be longer than the code it describes.
 * Applies to YAML, shell and Python too, not just Rust.