diff --git a/.github/workflows/auto-fill-pr.yml b/.github/workflows/auto-fill-pr.yml
index 341efb3..0c2cb96 100644
--- a/.github/workflows/auto-fill-pr.yml
+++ b/.github/workflows/auto-fill-pr.yml
@@ -3,6 +3,10 @@ name: Auto-fill PR Template
 on:
   pull_request:
     types: [opened]
+  workflow_call:
+    secrets:
+      ANTHROPIC_API_KEY:
+        required: false
 
 permissions:
   contents: read