network-readiness) for meta-data stream generated and transported by a
tracer.
-The text-only meta-data file is a plain text TSDL description.
+The text-only meta-data file is a plain-text TSDL description. This file
+must begin with the following characters to identify the file as a CTF
+TSDL text-based metadata file:
+
+/* TSDL */
+
+These characters allow automated discovery of file type. They are
+interpreted as a comment by the TSDL metadata parser.
The packet-based meta-data is made of "meta-data packets", which each
start with a meta-data packet header. The packet-based meta-data