diff --git a/tools/bulk_review.sh b/tools/bulk_review.sh
index 33633c3bee..ceff75e131 100755
--- a/tools/bulk_review.sh
+++ b/tools/bulk_review.sh
@@ -101,7 +101,8 @@ for team in "${!files_by_team_release[@]}" ; do
     git add ${files_by_team_release[$team]}
     git commit -s\
         -m "[$team] $subject" \
-        -m "$body"
+        -m "$body" \
+        --trailer="Generated-By:openstack/releases:tools/bulk_review.sh"
 
     git stash
     git checkout master
diff --git a/tools/functions b/tools/functions
index cef46ff307..4d2dfd1321 100644
--- a/tools/functions
+++ b/tools/functions
@@ -75,7 +75,8 @@ function update_gitreview {
 defaultbranch=$branch"
     echo "$grcontents" > .gitreview
     git add .gitreview
-    git commit -s -m "Update .gitreview for $branch"
+    git commit -s -m "Update .gitreview for $branch" \
+        --trailer="Generated-By:openstack/releases:tools/functions"
     git show
     local shortbranch=$(basename $branch)
     git review -t "create-${shortbranch}"
@@ -93,7 +94,8 @@ function update_upper_constraints {
     sed -i~ -e "s,-c.*{\(env:UPPER_CONSTRAINTS_FILE\)[^ ]*},-c{\1:$uc_url}," tox.ini
     if ! git diff --exit-code >/dev/null 2>&1 ; then
         git add tox.ini
-        git commit -s -m "Update UPPER_CONSTRAINTS_FILE for $branch"
+        git commit -s -m "Update UPPER_CONSTRAINTS_FILE for $branch" \
+            --trailer="Generated-By:openstack/releases:tools/functions"
         git show
         local shortbranch=$(basename $branch)
         git review -t "create-${shortbranch}"
diff --git a/tools/process_auto_releases.sh b/tools/process_auto_releases.sh
index 7a93efc287..f040a6deef 100755
--- a/tools/process_auto_releases.sh
+++ b/tools/process_auto_releases.sh
@@ -154,7 +154,8 @@ $(git log --oneline --no-merges ${prev_tag}..${end_sha})
     done
     git add .
     message="${commit//PROJECT/$repo}${change_list}"
-    git commit -s -m "$message"
+    git commit -s -m "$message" \
+        --trailer="Generated-By:openstack/releases:tools/process_auto_releases.sh"
     git log -1
     git review -t $topic
     git reset --hard HEAD~1 > /dev/null