diff --git a/.gitea/workflows/runner-probe.yml b/.gitea/workflows/runner-probe.yml
new file mode 100644
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+++ b/.gitea/workflows/runner-probe.yml
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+# 一次性探针工作流：验证 mac-ci runner 的取任务与容器执行链路，验完即删（分支 ci-runner-probe 不合回）。
+name: runner-probe
+on:
+  push:
+    branches: [ci-runner-probe]
+jobs:
+  probe:
+    runs-on: ci-mac
+    steps:
+      - name: ping
+        run: echo "runner alive on $(uname -a)"
+      - name: tools
+        run: python3 --version && git --version && bash --version | head -1