diff --git a/AGENTS.md b/AGENTS.md
index 45eed9ec2ad..de30fb15068 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -201,6 +201,7 @@
 ## Agent-Specific Notes
 
 - Vocabulary: "makeup" = "mac app".
+- Parallels macOS retests: use the snapshot most closely named like `macOS 26.3.1 fresh` when the user asks for a clean/fresh macOS rerun; avoid older Tahoe snapshots unless explicitly requested.
 - Never edit `node_modules` (global/Homebrew/npm/git installs too). Updates overwrite. Skill notes go in `tools.md` or `AGENTS.md`.
 - When adding a new `AGENTS.md` anywhere in the repo, also add a `CLAUDE.md` symlink pointing to it (example: `ln -s AGENTS.md CLAUDE.md`).
 - Signal: "update fly" => `fly ssh console -a flawd-bot -C "bash -lc 'cd /data/clawd/openclaw && git pull --rebase origin main'"` then `fly machines restart e825232f34d058 -a flawd-bot`.