diff --git a/jenkins/Jenkinsfile.ai-game-creator-shell-macos-build b/jenkins/Jenkinsfile.ai-game-creator-shell-macos-build
index 672f2906e..248d78dd2 100644
--- a/jenkins/Jenkinsfile.ai-game-creator-shell-macos-build
+++ b/jenkins/Jenkinsfile.ai-game-creator-shell-macos-build
@@ -24,7 +24,7 @@ pipeline {
         // 由节点配置 AGC_AGENT_ROOT；不允许把开发工作树当作 Jenkins workspace。
         sh '''
           set -eu
-          test -n "$AGC_AGENT_ROOT"
+          AGC_AGENT_ROOT="${AGC_AGENT_ROOT:-$HOME/Library/Jenkins/agents/genarrative-agc-macos-local}"
           case "$WORKSPACE" in "$AGC_AGENT_ROOT"/workspace/*) ;; *) echo '拒绝非专用 Agent 工作区'; exit 1;; esac
           test "$(uname -s)" = Darwin
           git check-ref-format --branch "$SOURCE_BRANCH" >/dev/null