--bypass-hooks should bypass all checks, including descriptions checks.

git_cl.py

Index: git_cl.py
diff --git a/git_cl.py b/git_cl.py
index e250c8e5e4dfcf884891629f46fbf7d217fd0cbd..9dc9339c24da683d22009b013b3ae9be483ad92c 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -1254,9 +1254,13 @@ def SendUpstream(parser, args, cmd):
     description = cl.GetDescription()
 
   if not description:
-    print 'No description set.'
-    print 'Visit %s/edit to set it.' % (cl.GetIssueURL())
-    return 1
+    if options.bypass_hooks:
+      # Something is very wrong; assume the user knows what they're doing.
+      description = "<Committed without description and with --bypass-hooks>"

[M-A Ruel, 2012/08/29 20:27:10]

What about?
if not cl.GetIssue() and options.bypass_hooks:
  description = CreateDescriptionFromLog([base_branch])

[Elliot Glaysher, 2012/08/29 20:39:16]

Done.

+    else:
+      print 'No description set.'
+      print 'Visit %s/edit to set it.' % (cl.GetIssueURL())
+      return 1
 
   if cl.GetIssue():
     description += "\n\nReview URL: %s" % cl.GetIssueURL()