diff --git a/doc.go b/doc.go
index 714813098e8..7ecefd1d871 100644
--- a/doc.go
+++ b/doc.go
@@ -1,2 +1,4 @@
-// Package rdk TODO
+// Package rdk defines the Robot Development Kit.
+// This is the open-source, on-robot portion of the Viam platform,
+// providing viam-server and the Go SDK.
 package rdk