diff --git a/net/README.md b/net/README.md
new file mode 100644
index 0000000..295085c
--- /dev/null
+++ b/net/README.md
@@ -0,0 +1,3 @@
+# `//net`
+
+API definitions and tooling for Monogon OS network definitions. It currently happens to live at the top level because it is shared between //cloud and //metropolis, we should find a more sensible place for it.