diff --git a/.github/workflows/clean.yml b/.github/workflows/clean.yml
deleted file mode 100644
index 9afbb38..0000000
--- a/.github/workflows/clean.yml
+++ /dev/null
@@ -1,67 +0,0 @@
-name: clean
-
-permissions:
-  contents: write
-  pull-requests: read
-  actions: write
-
-defaults:
-  run:
-    shell: bash
-
-on:
-  workflow_dispatch: { }
-  schedule:
-    - cron: "0 0 * * *" # every day at 00:00 UTC
-
-jobs:
-  clean:
-    timeout-minutes: 5
-    runs-on: ubuntu-22.04
-    continue-on-error: true
-    steps:
-      - name: Remove Cache
-        uses: actions/github-script@v7
-        with:
-          # clean up caches,
-          # ref to https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#force-deleting-cache-entries,
-          # and https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache.
-          script: |
-            const owner = context.repo.owner
-            const repo = context.repo.repo
-            var deleteCaches = new Array()
-            
-            // get candidate items.
-            const { data: cs } = await github.rest.actions.getActionsCacheList({
-              owner: owner,
-              repo: repo,
-            });
-            for (const c of cs.actions_caches) {
-              // clean closed pull request caches.
-              if (c.ref.match(/^refs\/pull\/.*$/)) {
-                var prNum = c.ref.replace(/[^\d]/g, "")
-                const { data: pr } = await github.rest.pulls.get({
-                  owner: owner,
-                  repo: repo,
-                  pull_number: prNum,
-                })
-                if (pr.state === 'closed') {
-                  deleteCaches.push(c)
-                }
-                continue
-              }
-              if ('${{ github.event_name }}' != 'schedule') {
-                // clean branch caches.
-                deleteCaches.push(c)
-              }
-            }
-            
-            // delete 
-            for (const c of deleteCaches) {
-              await github.rest.actions.deleteActionsCacheById({
-                owner: owner,
-                repo: repo,
-                cache_id: c.id,
-              })
-              console.log(`cleaned cache "${c.key}"`)
-            }
diff --git a/.github/workflows/close.yml b/.github/workflows/close.yml
deleted file mode 100644
index 670c7c3..0000000
--- a/.github/workflows/close.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: close
-
-permissions:
-  pull-requests: write
-  issues: write
-
-defaults:
-  run:
-    shell: bash
-
-on:
-  workflow_dispatch: { }
-  schedule:
-    - cron: "0 0 * * *" # every day at 00:00 UTC
-
-jobs:
-  close:
-    timeout-minutes: 5
-    runs-on: ubuntu-22.04
-    continue-on-error: true
-    steps:
-      - name: Close Stale Issues and Pull Requests
-        uses: actions/stale@v9
-        with:
-          days-before-stale: 15
-          days-before-close: 14
-          exempt-issue-labels: "help wanted,good first issue,bug,bug-qa,enhancement"
-          stale-issue-label: "stale"
-          close-issue-message: "This issue was closed because it has been inactive for 14 days since being marked as stale."
-          exempt-pr-labels: "bug,bug-qa,enhancement"
-          exempt-draft-pr: true
-          stale-pr-label: "stale"
-          close-pr-message: "This pull request was closed because it has been inactive for 14 days since being marked as stale."
-          operations-per-run: 10000
diff --git a/.github/workflows/prune.yml b/.github/workflows/prune.yml
new file mode 100644
index 0000000..0b3f8ce
--- /dev/null
+++ b/.github/workflows/prune.yml
@@ -0,0 +1,32 @@
+name: prune
+
+permissions:
+  contents: write
+  pull-requests: write
+  actions: write
+  issues: write
+
+defaults:
+  run:
+    shell: bash
+
+on:
+  workflow_dispatch:
+    inputs:
+      prune:
+        description: 'Prune all caches'
+        required: false
+        type: boolean
+        default: false
+  schedule:
+    - cron: "0 0 * * *" # every day at 00:00 UTC
+
+jobs:
+  close-stale-issues-and-prs:
+    uses: gpustack/.github/.github/workflows/close-stale-issues-and-prs.yml@main
+
+  clean-stale-caches:
+    uses: gpustack/.github/.github/workflows/clean-stale-caches.yml@main
+    with:
+      # allow to prune all caches on demand
+      prune: ${{ github.event_name != 'schedule' && inputs.prune || false }}
diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
index bab2a8e..49dc95a 100644
--- a/.github/workflows/sync.yml
+++ b/.github/workflows/sync.yml
@@ -36,7 +36,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
       - name: Sync
-        uses: gpustack/.github/actions/mirror-release-gitcode@main
+        uses: gpustack/.github/.github/actions/mirror-release-gitcode@main
         with:
           gitcode-username: "${{ secrets.CI_GITCODE_USERNAME }}"
           gitcode-password: "${{ secrets.CI_GITCODE_PASSWORD }}"
@@ -54,7 +54,7 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
       - name: Sync
-        uses: gpustack/.github/actions/mirror-release-gitee@main
+        uses: gpustack/.github/.github/actions/mirror-release-gitee@main
         with:
           gitee-username: "${{ secrets.CI_GITEE_USERNAME }}"
           gitee-token: "${{ secrets.CI_GITEE_TOKEN }}"
@@ -66,7 +66,7 @@ jobs:
     timeout-minutes: 120
     steps:
       - name: Sync
-        uses: gpustack/.github/actions/mirror-release-tencent-cos@main
+        uses: gpustack/.github/.github/actions/mirror-release-tencent-cos@main
         with:
           tencent-secret-id: "${{ secrets.CI_TECENTCOS_SECRET_ID }}"
           tencent-secret-key: "${{ secrets.CI_TECENTCOS_SECRET_KEY }}"