diff --git a/internal/command/jsonchecks/checks.go b/internal/command/jsonchecks/checks.go
index 8590da9be2..892dcba325 100644
--- a/internal/command/jsonchecks/checks.go
+++ b/internal/command/jsonchecks/checks.go
@@ -70,6 +70,8 @@ func MarshalCheckStates(results *states.CheckResults) []byte {
 // object in the configuration even if Terraform Core encountered an error
 // before being able to determine the dynamic instances of the checkable object.
 type checkResultStatic struct {
+	ExperimentalNote experimentalNote `json:"//"`
+
 	// Address is the address of the checkable object this result relates to.
 	Address staticObjectAddr `json:"address"`
 
@@ -114,3 +116,9 @@ type checkProblem struct {
 	// intentionally an object to allow us to add other data over time, such
 	// as the source location where the failing condition was defined.
 }
+
+type experimentalNote struct{}
+
+func (n experimentalNote) MarshalJSON() ([]byte, error) {
+	return []byte(`"EXPERIMENTAL: see docs for details"`), nil
+}
diff --git a/internal/command/jsonchecks/checks_test.go b/internal/command/jsonchecks/checks_test.go
index fd8dba8b80..6e0f52da4f 100644
--- a/internal/command/jsonchecks/checks_test.go
+++ b/internal/command/jsonchecks/checks_test.go
@@ -94,6 +94,7 @@ func TestMarshalCheckStates(t *testing.T) {
 			},
 			[]any{
 				map[string]any{
+					"//": "EXPERIMENTAL: see docs for details",
 					"address": map[string]any{
 						"kind":       "output_value",
 						"module":     "module.child",
@@ -117,6 +118,7 @@ func TestMarshalCheckStates(t *testing.T) {
 					"status": "fail",
 				},
 				map[string]any{
+					"//": "EXPERIMENTAL: see docs for details",
 					"address": map[string]any{
 						"kind":       "resource",
 						"mode":       "managed",
@@ -142,6 +144,7 @@ func TestMarshalCheckStates(t *testing.T) {
 					"status": "fail",
 				},
 				map[string]any{
+					"//": "EXPERIMENTAL: see docs for details",
 					"address": map[string]any{
 						"kind":       "output_value",
 						"name":       "a",
@@ -158,6 +161,7 @@ func TestMarshalCheckStates(t *testing.T) {
 					"status": "fail",
 				},
 				map[string]any{
+					"//": "EXPERIMENTAL: see docs for details",
 					"address": map[string]any{
 						"kind":       "resource",
 						"mode":       "managed",