diff --git a/.claudeignore b/.claudeignore
new file mode 100644
index 0000000..bc69978
--- /dev/null
+++ b/.claudeignore
@@ -0,0 +1,14 @@
+# Build artifacts
+dist/
+build/
+out/
+
+# Secrets & environment
+.env
+.env.*
+!.env.example
+*.pem
+*.key
+*.p12
+*.pfx
+secrets/