diff --git a/.github/workflows/release_skill.yaml b/.github/workflows/release_skill.yaml
index be669a1..f27ccc6 100644
--- a/.github/workflows/release_skill.yaml
+++ b/.github/workflows/release_skill.yaml
@@ -108,4 +108,31 @@ jobs:
               exit(1)
           if payload.get('code') != 200:
               exit(1)
+          "
+
+      # 7. 清理旧版本（只保留最新1个）
+      - name: Prune Old Versions
+        env:
+          SLUG: ${{ steps.build_task.outputs.slug }}
+          VERSION: ${{ steps.build_task.outputs.version }}
+        run: |
+          python -c "
+          import requests, os
+          url = 'https://jc2009.com/api/artifacts/prune-old-versions'
+          payload = {
+            'name': os.environ['SLUG'],
+            'artifact_type': 'skill',
+            'keep_count': 1,
+            'protect_version': os.environ['VERSION']
+          }
+          res = requests.post(url, json=payload)
+          print(f'Prune Result: {res.text}')
+          if res.status_code != 200:
+              exit(1)
+          try:
+              body = res.json()
+          except Exception:
+              exit(1)
+          if body.get('code') != 200:
+              exit(1)
           "
\ No newline at end of file