diff --git a/crates/didbot-serve/tests/firehose_wire.rs b/crates/didbot-serve/tests/firehose_wire.rs
index e55e59ca..9e43b76a 100644
--- a/crates/didbot-serve/tests/firehose_wire.rs
+++ b/crates/didbot-serve/tests/firehose_wire.rs
@@ -1,13 +1,13 @@
 //! What this server writes on the firehose, against the recorded vectors.
 //!
-//! The producer's half of `vectors/firehose/`. It asserts that serializing the
-//! types this crate owns yields exactly the recorded bodies, so a rename or a
-//! changed field here fails before it reaches a consumer that was built
-//! somewhere else.
+//! The producer's half of `vectors/firehose/`. Each vector's `event` and
+//! `data` are the contract; this asserts that serializing the types this crate
+//! owns yields exactly those, for `commit`, `delete`, `info`, `identity` and
+//! `account` alike, so a rename or a changed field here fails before it
+//! reaches a consumer built somewhere else.
 //!
-//! Two of the vectors are consumer-side only and are not read here: they
-//! record what an index must tolerate from a server that is not this one, and
-//! no server built from this repository emits either.
+//! `info-unknown-name` and `commit-sparse` pin what a consumer tolerates from
+//! other servers, so only a consumer reads them.
 
 use std::path::PathBuf;