diff --git a/.gitignore b/.gitignore
index 89c4c0d..ce47900 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,4 +19,7 @@ docker-compose.override.yml
 # Local, never-committed working area (strategy notes, drafts, scratch).
 /local/
 .claude/
-.continue/
\ No newline at end of file
+.continue/
+
+# Claude Code へのローカル指示（各自の手元のもの。共有しない）
+CLAUDE.md