diff --git a/playbooks/proposal/propose_update.sh b/playbooks/proposal/propose_update.sh
index 5fa03c8d5b..288f1e74b0 100755
--- a/playbooks/proposal/propose_update.sh
+++ b/playbooks/proposal/propose_update.sh
@@ -176,7 +176,7 @@ for PROJECT in $PROJECTS; do
         pushd $PROJECT_DIR
         if ! git diff --stat --exit-code HEAD ; then
             # Commit and review
-            git_args="-a -F- -s"
+            git_args="-a -F- -s --trailer='Generated-By:openstack/project-config:playbooks/proposal/propose_update.sh'"
             git commit $git_args <<EOF
 $COMMIT_MSG
 EOF
diff --git a/roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh b/roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh
index 9c20b1a5be..b8b4f1f987 100755
--- a/roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh
+++ b/roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh
@@ -69,6 +69,7 @@ spaces=$(grep unreleased releasenotes/source/index.rst | sed -e 's/\w//g')
 sed --in-place -e "/unreleased/s/unreleased/unreleased\n${spaces}${SERIES}/" releasenotes/source/index.rst
 git add releasenotes/source/index.rst releasenotes/source/${SERIES}.rst
 git diff
-git commit -m "$commit_msg" -s
+git commit -m "$commit_msg" -s \
+    --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/add_release_note_page.sh"
 git show
 git review -t "reno-${SERIES}" --yes
diff --git a/roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh b/roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh
index e394308249..a9c88b940f 100755
--- a/roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh
+++ b/roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh
@@ -45,6 +45,7 @@ unmaintained/${SERIES}.
 sed --in-place -e "s/stable\/${SERIES}/unmaintained\/${SERIES}/" releasenotes/source/${SERIES}.rst
 git add releasenotes/source/${SERIES}.rst
 git diff
-git commit -m "$commit_msg" -s
+git commit -m "$commit_msg" -s \
+    --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/change_reno_branch_to_unmaintained.sh"
 git show
 git review -t "reno-eom-${SERIES}" --yes
diff --git a/roles/copy-release-tools-scripts/files/release-tools/functions b/roles/copy-release-tools-scripts/files/release-tools/functions
index 67d043c851..4fb69777a4 100644
--- a/roles/copy-release-tools-scripts/files/release-tools/functions
+++ b/roles/copy-release-tools-scripts/files/release-tools/functions
@@ -66,7 +66,8 @@ function update_gitreview {
 defaultbranch=$branch"
     echo "$grcontents" > .gitreview
     git add .gitreview
-    git commit -m "Update .gitreview for $branch" -s
+    git commit -m "Update .gitreview for $branch" -s \
+        --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/functions"
     git show
     local shortbranch=$(basename $branch)
     git review -t "create-${shortbranch}" --yes
@@ -110,7 +111,8 @@ the requirements repository branches.
 
 Until the requirements repository has as $branch branch, tests will
 continue to use the upper-constraints list on master."
-        git commit -m "$msg" -m "$body" -s
+        git commit -m "$msg" -m "$body" -s \
+            --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/functions"
         git show
         local shortbranch=$(basename $branch)
         git review -t "create-${shortbranch}" --yes
diff --git a/roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh b/roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh
index 47bdfcf752..a3e05e3f75 100755
--- a/roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh
+++ b/roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh
@@ -125,7 +125,8 @@ else
     if git commit -a -m "update constraint for $dist_name to new release $VERSION
 
 $TAG_META
-" -s; then
+" -s --trailer="Generated-By:openstack/project-config:roles/copy-release-tools-scripts/files/release-tools/update_constraints.sh"
+    then
         echo "Sleeping 10 minutes to avoid issues with the pypi cache"
         sleep 600
         git show