diff --git a/.claude/skills/managing-dependencies/SKILL.md b/.claude/skills/managing-dependencies/SKILL.md
index ac19670c3..b709db715 100644
--- a/.claude/skills/managing-dependencies/SKILL.md
+++ b/.claude/skills/managing-dependencies/SKILL.md
@@ -19,7 +19,7 @@ The convention resolves this without dropping old-Python support. Pin each inter
 
 ## File-layout convention
 
-Each file lists **one dependency per section**: Name of the dependency, an optional rationale note (starting with `Note:`, explaining why a version is pinned or split), then the requirement line(s), separated from the next section by a blank line. This makes every pin self-documenting.
+Each file lists **one dependency per section**: Name of the dependency, an optional rationale note (starting with `Note:`, explaining why a version is pinned or split), then the requirement line(s), separated from the next section by a blank line. This makes every pin self-documenting. Keep the note to the *why*; do not restate the per-interpreter ceilings or floors that are already readable on the requirement lines below, and omit the note entirely when the split is self-evident (as the `websockets` entry does).
 
 ```
 # pytest
diff --git a/requirements/optional.txt b/requirements/optional.txt
index 449bb4b05..88c89911e 100644
--- a/requirements/optional.txt
+++ b/requirements/optional.txt
@@ -35,4 +35,7 @@ websockets>=9.1,<16; python_version == "3.9"
 websockets>=16.1.1,<17; python_version >= "3.10"
 
 # websocket-client
-websocket-client>=1,<2
+websocket-client>=1,<1.6.2; python_version == "3.7"
+websocket-client>=1,<1.9.0; python_version == "3.8"
+websocket-client>=1,<1.9.1; python_version == "3.9"
+websocket-client>=1.9.1,<2; python_version >= "3.10"