diff --git a/.gitignore b/.gitignore
index d14d7113..2ee1c681 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@ bin/gstack-global-discover
 .gstack/
 .claude/skills/
 .agents/
+.factory/
 .context/
 extension/.auth.json
 .gstack-worktrees/