diff --git a/.github/actions/assign-fixed-issues/entrypoint.sh b/.github/actions/assign-fixed-issues/entrypoint.sh
index c8c15d53d88f7..83680fcc30877 100755
--- a/.github/actions/assign-fixed-issues/entrypoint.sh
+++ b/.github/actions/assign-fixed-issues/entrypoint.sh
@@ -1,7 +1,16 @@
 #!/bin/bash
 set -e
 
-# 1. Find the issues that this PR 'fixes'.
+# 1. Proceed only when acting on an opened pull request.
+
+action=$(jq -r '.action' $GITHUB_EVENT_PATH)
+
+if [ "$action" != 'closed' ]; then
+	echo "Action '$action' not a close action. Aborting."
+	exit 0;
+fi
+
+# 2. Find the issues that this PR 'fixes'.
 
 issues=$(
 	jq -r '.pull_request.body' $GITHUB_EVENT_PATH | perl -nle 'print $1 while /
@@ -15,18 +24,18 @@ issues=$(
 
 if [ -z "$issues" ]; then
 	echo "Pull request does not 'fix' any issues. Aborting."
-	exit 78
+	exit 0
 fi
 
-# 2. Grab the author of the PR.
+# 3. Grab the author of the PR.
 
 author=$(jq -r '.pull_request.user.login' $GITHUB_EVENT_PATH)
 
-# 3. Loop through each 'fixed' issue.
+# 4. Loop through each 'fixed' issue.
 
 for issue in $issues; do
 
-	# 3a. Add the author as an asignee to the issue. This fails if the author is
+	# 4a. Add the author as an asignee to the issue. This fails if the author is
 	#     already assigned, which is expected and ignored.
 
 	curl \
diff --git a/.github/actions/first-time-contributor/entrypoint.sh b/.github/actions/first-time-contributor/entrypoint.sh
index c775c4f615098..9360574ebe509 100755
--- a/.github/actions/first-time-contributor/entrypoint.sh
+++ b/.github/actions/first-time-contributor/entrypoint.sh
@@ -1,16 +1,24 @@
 #!/bin/bash
 set -e
 
-# 1. Get the author and pr number for the pull request.
+# 1. Proceed only when acting on an opened pull request.
+action=$(jq -r '.action' $GITHUB_EVENT_PATH)
+
+if [ "$action" != 'opened' ]; then
+	echo "Action '$action' not a close action. Aborting."
+	exit 0;
+fi
+
+# 2. Get the author and pr number for the pull request.
 author=$(jq -r '.pull_request.user.login' $GITHUB_EVENT_PATH)
 pr_number=$(jq -r '.number' $GITHUB_EVENT_PATH)
 
 if [ "$pr_number" = "null" ] || [ "$author" = "null" ]; then
 	echo "Could not find PR number or author. $pr_number / $author"
-	exit 78
+	exit 0
 fi
 
-# 2. Fetch the author's commit count for the repo to determine if they're a first-time contributor.
+# 3. Fetch the author's commit count for the repo to determine if they're a first-time contributor.
 commit_count=$(
 	curl \
 		--silent \
@@ -19,13 +27,13 @@ commit_count=$(
 		| jq -r '.total_count'
 )
 
-# 3. If the response has a commit count of zero, exit early, the author is not a first time contributor.
+# 4. If the response has a commit count of zero, exit early, the author is not a first time contributor.
 if [ "$commit_count" != "0" ]; then
 	echo "Pull request #$pr_number was not created by a first-time contributor ($author)."
-	exit 78
+	exit 0
 fi
 
-# 4. Assign the 'First Time Contributor' label.
+# 5. Assign the 'First Time Contributor' label.
 curl \
 	--silent \
 	-X POST \
diff --git a/.github/actions/milestone-it/entrypoint.sh b/.github/actions/milestone-it/entrypoint.sh
index 3c65671104e26..8c91df0cb05ff 100755
--- a/.github/actions/milestone-it/entrypoint.sh
+++ b/.github/actions/milestone-it/entrypoint.sh
@@ -7,21 +7,21 @@ action=$(jq -r '.action' $GITHUB_EVENT_PATH)
 
 if [ "$action" != 'closed' ]; then
 	echo "Action '$action' not a close action. Aborting."
-	exit 78;
+	exit 0;
 fi
 
 merged=$(jq -r '.pull_request.merged' $GITHUB_EVENT_PATH)
 
 if [ "$merged" != 'true' ]; then
 	echo "Pull request closed without merge. Aborting."
-	exit 78;
+	exit 0;
 fi
 
 base=$(jq -r '.pull_request.base.ref' $GITHUB_EVENT_PATH)
 
 if [ "$base" != 'master' ]; then
 	echo 'Milestones apply only to master merge. Aborting.'
-	exit 78;
+	exit 0;
 fi
 
 # 2. Determine if milestone already exists (don't replace one which has already
@@ -39,7 +39,7 @@ current_milestone=$(
 
 if [ "$current_milestone" != 'null' ]; then
 	echo 'Milestone already applied. Aborting.'
-	exit 78;
+	exit 0;
 fi
 
 # 3. Read current version.
diff --git a/.github/workflows/pull_request-add-the-first-time-contributor-label-to-prs-opened-by-first-time-contributors.yml b/.github/workflows/pull_request-add-the-first-time-contributor-label-to-prs-opened-by-first-time-contributors.yml
index d5b8fbbe2e07b..5c5bf75d0716e 100644
--- a/.github/workflows/pull_request-add-the-first-time-contributor-label-to-prs-opened-by-first-time-contributors.yml
+++ b/.github/workflows/pull_request-add-the-first-time-contributor-label-to-prs-opened-by-first-time-contributors.yml
@@ -1,15 +1,11 @@
 on: pull_request
-name: Add the First-time Contributor label to PRs opened by first-time contributors
+name: Add the First-time Contributor label
 jobs:
   filterOpened:
     name: Filter opened
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@master
-    - name: Filter opened
-      uses: actions/bin/filter@0dbb077f64d0ec1068a644d25c71b1db66148a24
-      with:
-        args: action opened
     - name: First Time Contributor
       uses: ./.github/actions/first-time-contributor
       env:
diff --git a/.github/workflows/pull_request-assign-fixed-issues-when-pull-request-opened.yml b/.github/workflows/pull_request-assign-fixed-issues-when-pull-request-opened.yml
index 2b4f0ac9ec4e7..bc39c69442425 100644
--- a/.github/workflows/pull_request-assign-fixed-issues-when-pull-request-opened.yml
+++ b/.github/workflows/pull_request-assign-fixed-issues-when-pull-request-opened.yml
@@ -6,10 +6,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@master
-    - name: Filter opened
-      uses: actions/bin/filter@0dbb077f64d0ec1068a644d25c71b1db66148a24
-      with:
-        args: action opened
     - name: Assign Fixed Issues
       uses: ./.github/actions/assign-fixed-issues
       env: