diff --git a/README.md b/README.md
index 4392109..3c8e086 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,10 @@
 This is an adapter for the [Radicle CI broker], for performing CI runs
 locally. This means it reads a JSON message from its stdin, and writes
 two JSON messages to its stdout. Its configured via a configuration
-file specified in the `RADICLE_NATIVE_CI` environment variable. There
-is currently no logging.
+file specified in the `RADICLE_NATIVE_CI` environment variable.
+
+The adapter writes an "admin log" to its standard error output, aimed
+at the node operator who uses Radicle CI.
 
 The CI run is performed locally, without any isolation. This is not
 safe and secure, but it's simple, and easy to get working. Do not use