diff --git a/.gitea/workflows/ci.yaml b/.gitea/workflows/ci.yaml
index 0d925bb..8f63b1f 100644
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@@ -50,20 +50,17 @@ jobs:
       uses: https://gitea.jsc.idv.tw/docker-actions/antigravity@${{ vars.ACTION_ANTIGRAVITY_VERSION }}
     - name: 檢查 AI 助理 CLI
       shell: bash
-      env:
-        AI_ASSISTANT_CLI_TOOLS: ${{ vars.AI_ASSISTANT_CLI_TOOLS }}
       run: |
         set -e
-        tools="${AI_ASSISTANT_CLI_TOOLS:-codex claude opencode}"
         found=""
-        for tool in $tools; do
+        for tool in codex claude opencode; do
           if command -v "$tool" >/dev/null 2>&1; then
             found="${found} ${tool}"
             "$tool" --version || true
           fi
         done
         if [ -z "$found" ]; then
-          echo "找不到可用的 AI 助理 CLI（候選工具：${tools}）" >&2
+          echo "找不到可用的 AI 助理 CLI（需要 codex、claude 或 opencode 其中之一）" >&2
           exit 1
         fi
         echo "可用 AI 助理 CLI:${found}"