diff --git a/.github/workflows/refresh-traffic.yml b/.github/workflows/refresh-traffic.yml
index 7838699..7d6e72f 100644
--- a/.github/workflows/refresh-traffic.yml
+++ b/.github/workflows/refresh-traffic.yml
@@ -16,6 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: write
+      pull-requests: write
     steps:
       - uses: actions/checkout@v4
 
@@ -107,9 +108,35 @@ jobs:
           New-Item -ItemType Directory -Force -Path $dir | Out-Null
           $snap | ConvertTo-Json -Depth 10 | Set-Content -Encoding UTF8 (Join-Path $dir "_traffic.json")
 
-      - name: Commit and push
+      - name: Create branch, commit, push, and open PR
+        shell: bash
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
+          set -euo pipefail
+
+          if git diff --quiet data/_traffic.json; then
+            echo "No changes - skipping."
+            exit 0
+          fi
+
+          BRANCH="chore/traffic-$(date -u +%Y%m%d-%H%M%S)"
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"
+          git checkout -b "$BRANCH"
           git add data/_traffic.json
-          git diff --cached --quiet || (git commit -m "chore: refresh traffic snapshot $(date -u +%Y-%m-%d)" && git push)
+          git commit -m "chore: refresh traffic snapshot $(date -u +%Y-%m-%d)"
+          git push origin "$BRANCH"
+
+          EXISTING_PR=$(gh pr list --state open --search "refresh traffic snapshot in:title" --json number 2>/dev/null | python3 -c "import json,sys; d=json.load(sys.stdin); print(d[0][\"number\"] if d else \"\")" || true)
+          if [[ -n "$EXISTING_PR" ]]; then
+            gh pr close "$EXISTING_PR" --comment "Superseded by new refresh." || true
+          fi
+
+          gh pr create \
+            --title "chore: refresh traffic snapshot $(date -u +%Y-%m-%d)" \
+            --body "Auto-generated by refresh-traffic workflow. Updates data/_traffic.json with latest GitHub Traffic and NuGet download stats." \
+            --base main \
+            --head "$BRANCH"
+
+          echo "PR opened from branch $BRANCH"