diff --git a/knowledge base/json-schema.placeholder b/knowledge base/json-schema.placeholder
new file mode 100644
index 0000000..2080742
--- /dev/null
+++ b/knowledge base/json-schema.placeholder	
@@ -0,0 +1 @@
+https://json-schema.org/
diff --git a/knowledge base/kubernetes/cluster-api.placeholder b/knowledge base/kubernetes/cluster-api.placeholder
new file mode 100644
index 0000000..53c74fb
--- /dev/null
+++ b/knowledge base/kubernetes/cluster-api.placeholder	
@@ -0,0 +1 @@
+https://cluster-api.sigs.k8s.io/
diff --git a/knowledge base/kubernetes/karpenter.placeholder b/knowledge base/kubernetes/karpenter.placeholder
new file mode 100644
index 0000000..7f0b2cf
--- /dev/null
+++ b/knowledge base/kubernetes/karpenter.placeholder	
@@ -0,0 +1 @@
+https://karpenter.sh/