diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
new file mode 100644
index 0000000..0ed6e68
--- /dev/null
+++ b/.github/workflows/update.yml
@@ -0,0 +1,53 @@
+name: Update Rankings
+
+on:
+  pull_request:
+    paths:
+      - 'data/top50.md'
+    types: [opened, synchronize]
+
+jobs:
+  update:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Get previous top 10
+        id: old
+        run: |
+          if git show HEAD^:data/top50.md > /tmp/old_top50.md 2>/dev/null; then
+            head -n 10 /tmp/old_top50.md | tr '\n' ';' > /tmp/old_top10.txt
+            cat /tmp/old_top10.txt
+          fi
+          OLD=$(cat /tmp/old_top10.txt 2>/dev/null || echo '')
+          echo "value=$OLD" >> $GITHUB_OUTPUT
+
+      - name: Get current top 10
+        id: new
+        run: |
+          head -n 10 data/top50.md | tr '\n' ';' > /tmp/new_top10.txt
+          cat /tmp/new_top10.txt
+          NEW=$(cat /tmp/new_top10.txt)
+          echo "value=$NEW" >> $GITHUB_OUTPUT
+
+      - name: Check if top 10 changed
+        id: diff
+        run: |
+          if [ "${{ steps.old.outputs.value }}" != "${{ steps.new.outputs.value }}" ]; then
+            echo "changed=true" >> $GITHUB_OUTPUT
+          else
+            echo "changed=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Notify Slack if changed
+        if: steps.diff.outputs.changed == 'true'
+        uses: slackapi/slack-github-action@v1
+        env:
+          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+        with:
+          payload: |
+            {
+              "text": "AgentOps Top-10 updated: ${{ steps.old.outputs.value }} → ${{ steps.new.outputs.value }} | PR: ${{ github.event.pull_request.html_url }}"
+            }
+
diff --git a/data/top50.md b/data/top50.md
new file mode 100644
index 0000000..d60240b
--- /dev/null
+++ b/data/top50.md
@@ -0,0 +1,13 @@
+| Rank | Repository | Stars | Last Commit | Score |
+|------|-----------|-------|-------------|-------|
+| 1 | repo1 | 1000 | 2025-01-01 | 90 |
+| 2 | repo2 | 900 | 2025-01-02 | 88 |
+| 3 | repo3 | 800 | 2025-01-03 | 87 |
+| 4 | repo4 | 700 | 2025-01-04 | 86 |
+| 5 | repo5 | 600 | 2025-01-05 | 85 |
+| 6 | repo6 | 500 | 2025-01-06 | 84 |
+| 7 | repo7 | 400 | 2025-01-07 | 83 |
+| 8 | repo8 | 300 | 2025-01-08 | 82 |
+| 9 | repo9 | 200 | 2025-01-09 | 81 |
+| 10 | repo10 | 100 | 2025-01-10 | 80 |
+