diff --git a/cmd/check/main.go b/cmd/check/main.go
index dd63620..e89c7bf 100644
--- a/cmd/check/main.go
+++ b/cmd/check/main.go
@@ -32,6 +32,10 @@ func main() {
 		return
 	}
 
+	if req.Source.Log != "" {
+		logrus.Info(req.Source.Log)
+	}
+
 	if req.Source.CheckDelay != "" {
 		delay, err := time.ParseDuration(req.Source.CheckDelay)
 		if err != nil {
diff --git a/cmd/in/main.go b/cmd/in/main.go
index 75a3825..d3f4118 100644
--- a/cmd/in/main.go
+++ b/cmd/in/main.go
@@ -51,6 +51,10 @@ func main() {
 
 	dest := os.Args[1]
 
+	if req.Source.Log != "" {
+		logrus.Info(req.Source.Log)
+	}
+
 	privileged, err := resource.IsPrivileged()
 	if err != nil {
 		logrus.Fatalf("could not check privilege: %s", err)
diff --git a/cmd/out/main.go b/cmd/out/main.go
index b4e91e4..116ed55 100644
--- a/cmd/out/main.go
+++ b/cmd/out/main.go
@@ -45,6 +45,10 @@ func main() {
 		return
 	}
 
+	if req.Source.Log != "" {
+		logrus.Info(req.Source.Log)
+	}
+
 	if req.Params.Version == "" {
 		logrus.Fatal("no version specified")
 		return
diff --git a/types.go b/types.go
index e5213e2..547188c 100644
--- a/types.go
+++ b/types.go
@@ -33,6 +33,9 @@ type Source struct {
 
 	// hardcoded metadata values to return on every get and put
 	Metadata []MetadataField `json:"metadata"`
+
+	// print a message on every action
+	Log string `json:"log"`
 }
 
 func (s Source) InitialVersion() string {