diff --git a/.gitea/workflows/self-check.yml b/.gitea/workflows/self-check.yml
new file mode 100644
index 0000000..9ca0641
--- /dev/null
+++ b/.gitea/workflows/self-check.yml
@@ -0,0 +1,14 @@
+# Cross-repo consistency (yukart/tool-crosscheck): decisions, topics, doc references,
+# service lists and front matter checked against their source in every yukart repo.
+on:
+  push:
+    branches: [ master ]
+  workflow_dispatch:
+
+jobs:
+  crosscheck:
+    uses: yukart/tool-crosscheck/.gitea/workflows/crosscheck.yml@master
+    with:
+      repo: ${{ github.event.repository.name }}
+      sha: ${{ github.sha }}
+    secrets: inherit