diff --git a/.dockerignore b/.dockerignore
index 26b9fe0..0771d14 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -50,3 +50,6 @@
 
 # Ignore test files
 /test/
+
+# Agent session state — worktrees under .claude/ are whole extra checkouts of this repo
+.claude