diff --git a/app/model_downloader/engine/planner.py b/app/model_downloader/engine/planner.py
index 3ace350b0..175669165 100644
--- a/app/model_downloader/engine/planner.py
+++ b/app/model_downloader/engine/planner.py
@@ -1,4 +1,4 @@
-"""Segment planning (PRD section 5.2).
+"""Segment planning.
 
 Split a known byte range into S roughly-equal segments, each fetched by its
 own coroutine with ``Range: bytes=start-end``. Falls back to a single segment
diff --git a/app/model_downloader/net/http.py b/app/model_downloader/net/http.py
index 33309b0ce..0e2923c71 100644
--- a/app/model_downloader/net/http.py
+++ b/app/model_downloader/net/http.py
@@ -1,6 +1,6 @@
 """Manual, validated redirect-following request opener.
 
-Automatic redirects are disabled (PRD section 9.2): we follow hops ourselves
+Automatic redirects are disabled. We follow hops ourselves
 so that on *every* hop we (a) re-validate scheme + reject credentials-in-URL,
 (b) recompute which stored credential — if any — applies to that hop's host,
 and (c) let the connector's resolver screen the IP. This is the single place
diff --git a/app/model_downloader/net/probe.py b/app/model_downloader/net/probe.py
index 289aa0c74..7e542e747 100644
--- a/app/model_downloader/net/probe.py
+++ b/app/model_downloader/net/probe.py
@@ -1,4 +1,4 @@
-"""Pre-download probe (PRD section 5.1).
+"""Pre-download probe.
 
 Issues a tiny ranged GET (``Range: bytes=0-0``) — which doubles as a
 range-support test — to discover ``Content-Length``, ``Accept-Ranges``,