diff --git a/.github/mergeable.yml b/.github/mergeable.yml
index c4bda8c..80971cd 100644
--- a/.github/mergeable.yml
+++ b/.github/mergeable.yml
@@ -25,6 +25,17 @@ mergeable:
         must_include:
           regex: "^(bug|enhancement|documentation|feature|refactor|performance|chore|wip|test|ci|security|dependencies)$"
           message: "PR must include at least one valid label."
+      # Ensure PR has at least one assignee
+
+      - do: assignee
+        min:
+          count: 1
+          message: "PR must have at least one assignee."
+      # Ensure PR has at least one reviewer requested
+      - do: approvals
+        min:
+          count: 1
+          message: "PR must have at least one reviewer requested or approved."
 
     pass:
       - do: labels
diff --git a/.github/workflows/github-event-notification.yaml b/.github/workflows/github-event-notification.yaml
new file mode 100644
index 0000000..d452f56
--- /dev/null
+++ b/.github/workflows/github-event-notification.yaml
@@ -0,0 +1,178 @@
+name: Notify (GitHub Events)
+
+permissions:
+  issues: write
+  pull-requests: write
+  contents: read
+
+on:
+  issues:
+    types: [opened, edited, reopened, closed, assigned, labeled]
+  pull_request:
+    types: [opened, closed, reopened, ready_for_review, review_requested]
+  pull_request_review:
+    types: [submitted, edited, dismissed]
+  issue_comment:
+    types: [created, edited]
+  pull_request_review_comment:
+    types: [created, edited]
+
+jobs:
+  notify:
+    runs-on: ubuntu-latest
+    name: Send Notifications
+
+    steps:
+      - name: Determine Event Type
+        id: event_info
+        run: |
+          EVENT="${{ github.event_name }}"
+          ACTION="${{ github.event.action }}"
+          REPO="${{ github.repository }}"
+          ACTOR="${{ github.actor }}"
+          REPO_URL="${{ github.server_url }}/${{ github.repository }}"
+
+          if [[ "$EVENT" == "issues" ]]; then
+            TITLE="Issue $ACTION: ${{ github.event.issue.title }}"
+            URL="${{ github.event.issue.html_url }}"
+            NUMBER="${{ github.event.issue.number }}"
+            USER="${{ github.event.issue.user.login }}"
+            DESCRIPTION="Issue #$NUMBER by $USER"
+            STATE="${{ github.event.issue.state }}"
+            EMOJI="🐛"
+
+          elif [[ "$EVENT" == "pull_request" ]]; then
+            NUMBER="${{ github.event.pull_request.number }}"
+            USER="${{ github.event.pull_request.user.login }}"
+            URL="${{ github.event.pull_request.html_url }}"
+            STATE="${{ github.event.pull_request.state }}"
+            SOURCE="${{ github.event.pull_request.head.ref }}"
+            TARGET="${{ github.event.pull_request.base.ref }}"
+
+            if [[ "$ACTION" == "closed" && "${{ github.event.pull_request.merged }}" == "true" ]]; then
+              TITLE="PR merged: ${{ github.event.pull_request.title }}"
+              EMOJI="✅"
+              STATE="merged"
+            elif [[ "$ACTION" == "closed" ]]; then
+              TITLE="PR closed: ${{ github.event.pull_request.title }}"
+              EMOJI="❌"
+            else
+              TITLE="PR $ACTION: ${{ github.event.pull_request.title }}"
+              EMOJI="🔀"
+            fi
+            DESCRIPTION="PR #$NUMBER by $USER: $SOURCE → $TARGET"
+
+          elif [[ "$EVENT" == "pull_request_review" ]]; then
+            TITLE="PR Review: ${{ github.event.pull_request.title }}"
+            URL="${{ github.event.review.html_url }}"
+            NUMBER="${{ github.event.pull_request.number }}"
+            USER="${{ github.event.review.user.login }}"
+            REVIEW_STATE="${{ github.event.review.state }}"
+            STATE="${{ github.event.review.state }}"
+            SOURCE="${{ github.event.pull_request.head.ref }}"
+            TARGET="${{ github.event.pull_request.base.ref }}"
+            DESCRIPTION="Review by $USER on PR #$NUMBER"
+            EMOJI="👀"
+
+          elif [[ "$EVENT" == "issue_comment" ]]; then
+            NUMBER="${{ github.event.issue.number }}"
+            USER="${{ github.event.comment.user.login }}"
+            URL="${{ github.event.comment.html_url }}"
+            STATE="commented"
+
+            if [[ "${{ github.event.issue.pull_request }}" != "" ]]; then
+              TITLE="Comment on PR: ${{ github.event.issue.title }}"
+              EMOJI="💬"
+            else
+              TITLE="Comment on Issue: ${{ github.event.issue.title }}"
+              EMOJI="💬"
+            fi
+            DESCRIPTION="Comment by $USER on #$NUMBER"
+
+          elif [[ "$EVENT" == "pull_request_review_comment" ]]; then
+            TITLE="Comment on PR: ${{ github.event.pull_request.title }}"
+            URL="${{ github.event.comment.html_url }}"
+            NUMBER="${{ github.event.pull_request.number }}"
+            USER="${{ github.event.comment.user.login }}"
+            STATE="commented"
+            SOURCE="${{ github.event.pull_request.head.ref }}"
+            TARGET="${{ github.event.pull_request.base.ref }}"
+            DESCRIPTION="Review comment by $USER on PR #$NUMBER"
+            EMOJI="💬"
+          else
+            TITLE="GitHub Event: $EVENT"
+            URL="${{ github.event.repository.html_url }}"
+            DESCRIPTION="Event triggered in $REPO"
+            STATE="N/A"
+            NUMBER="N/A"
+            USER="$ACTOR"
+            EMOJI="📢"
+          fi
+
+          echo "title=$TITLE" >> $GITHUB_OUTPUT
+          echo "url=$URL" >> $GITHUB_OUTPUT
+          echo "description=$DESCRIPTION" >> $GITHUB_OUTPUT
+          echo "emoji=$EMOJI" >> $GITHUB_OUTPUT
+          echo "number=${NUMBER:-N/A}" >> $GITHUB_OUTPUT
+          echo "user=${USER:-$ACTOR}" >> $GITHUB_OUTPUT
+          echo "state=${STATE:-N/A}" >> $GITHUB_OUTPUT
+          echo "source=${SOURCE:-N/A}" >> $GITHUB_OUTPUT
+          echo "target=${TARGET:-N/A}" >> $GITHUB_OUTPUT
+          echo "repo_url=$REPO_URL" >> $GITHUB_OUTPUT
+
+      - name: Google Chat Notification
+        if: always()
+        uses: Co-qn/google-chat-notification@releases/v1
+        with:
+          name: ${{ steps.event_info.outputs.title }}
+          url: ${{ secrets.GOOGLE_CHAT_WEBHOOK }}
+          status: ${{ job.status }}
+
+      - name: Slack Notification
+        if: always()
+        uses: slackapi/slack-github-action@v1.24.0
+        with:
+          channel-id: ${{ secrets.SLACK_CHANNEL_ID }}
+          payload: |
+            {
+              "text": "${{ steps.event_info.outputs.title }}",
+              "blocks": [
+                {
+                  "type": "header",
+                  "text": {
+                    "type": "plain_text",
+                    "text": "${{ steps.event_info.outputs.emoji }} ${{ steps.event_info.outputs.title }}"
+                  }
+                },
+                {
+                  "type": "section",
+                  "fields": [
+                    { "type": "mrkdwn", "text": "*Repository:*\n<${{ steps.event_info.outputs.repo_url }}|${{ github.repository }}>" },
+                    { "type": "mrkdwn", "text": "*Event:*\n${{ github.event_name }}" },
+                    { "type": "mrkdwn", "text": "*Author:*\n${{ steps.event_info.outputs.user }}" },
+                    { "type": "mrkdwn", "text": "*Action:*\n${{ github.event.action }}" },
+                    { "type": "mrkdwn", "text": "*Number:*\n<${{ steps.event_info.outputs.url }}|#${{ steps.event_info.outputs.number }}>" },
+                    { "type": "mrkdwn", "text": "*State:*\n${{ steps.event_info.outputs.state }}" }
+                  ]
+                },
+                {
+                  "type": "section",
+                  "text": { "type": "mrkdwn", "text": "${{ steps.event_info.outputs.description }}" }
+                },
+                {
+                  "type": "actions",
+                  "elements": [
+                    { "type": "button", "text": { "type": "plain_text", "text": "View on GitHub" }, "url": "${{ steps.event_info.outputs.url }}", "style": "primary" },
+                    { "type": "button", "text": { "type": "plain_text", "text": "View Repository" }, "url": "${{ steps.event_info.outputs.repo_url }}" }
+                  ]
+                },
+                {
+                  "type": "context",
+                  "elements": [
+                    { "type": "mrkdwn", "text": "Triggered by ${{ github.actor }} • ${{ github.event_name }} event" }
+                  ]
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
new file mode 100644
index 0000000..e0e34a5
--- /dev/null
+++ b/.github/workflows/stale.yml
@@ -0,0 +1,47 @@
+name: Schedule Stale PRs and Issues Management
+
+permissions:
+  actions: write
+  contents: write
+  issues: write
+  pull-requests: write
+
+on:
+  schedule:
+    - cron: '0 9 * * 1,4'  # Monday & Thursday at 9 AM UTC
+  workflow_dispatch:
+
+concurrency:
+  group: stale-management
+  cancel-in-progress: false
+
+jobs:
+  stale-management:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Manage Stale Issues and PRs
+        uses: actions/stale@v10.1.0
+        with:
+          repo-token: ${{ github.token }}
+
+          # General settings
+          days-before-stale: '30'
+          days-before-close: '7'
+          operations-per-run: '60'
+          remove-stale-when-updated: 'true'
+
+          # Issue-specific settings
+          stale-issue-label: 'stale'
+          stale-issue-message: 'This issue has been marked as stale due to inactivity. It will be closed in 7 days unless there is further activity.'
+          close-issue-message: 'This issue has been closed due to inactivity. Please feel free to reopen if you think it is still relevant.'
+          exempt-issue-labels: 'bug,critical,security,high-priority,enhancement,discussion,help wanted,good first issue'
+
+          # PR-specific settings
+          stale-pr-label: 'stale'
+          stale-pr-message: 'This pull request has been marked as stale due to inactivity. It will be closed in 7 days unless further changes are made or a review is requested.'
+          close-pr-message: 'This pull request has been closed due to inactivity. Please feel free to reopen if you think it is still relevant.'
+          exempt-pr-labels: 'WIP,In Progress'
diff --git a/cluster-api/schemas/cluster_schema.py b/cluster-api/schemas/cluster_schema.py
index 75cee10..e27bf79 100644
--- a/cluster-api/schemas/cluster_schema.py
+++ b/cluster-api/schemas/cluster_schema.py
@@ -1,3 +1,4 @@
+# pylint: disable=import-error
 """
 Utility functions for cluster operations.