diff --git a/tools/detect-changed-driver-agents.sh b/tools/detect-changed-driver-agents.sh
index 3a45635..4b62277 100644
--- a/tools/detect-changed-driver-agents.sh
+++ b/tools/detect-changed-driver-agents.sh
@@ -21,6 +21,8 @@ usage() {
 说明：
   通过 go list -deps 计算每个 driver-agent 的真实源码依赖，再与 git diff 文件求交集。
   如果无法解析基准或依赖分析失败，会保守输出全部 driver。
+  如果 driver 构建 / 发布工作流本身发生变化，也会保守输出全部 driver，
+  避免新应用 revision 与旧 driver-assets 再次错配。
 EOF
 }
 
@@ -517,6 +519,11 @@ for file in "${!changed_file_set[@]}"; do
       all_drivers_csv
       exit 0
       ;;
+    .github/workflows/dev-build.yml|.github/workflows/release.yml)
+      echo "检测到 driver-agent 构建/发布工作流变更；保守构建全部 driver-agent：$file" >&2
+      all_drivers_csv
+      exit 0
+      ;;
     tools/detect-changed-driver-agents.sh)
       echo "检测到 driver-agent 变更检测脚本更新；保守构建全部 driver-agent：$file" >&2
       all_drivers_csv
diff --git a/tools/detect-changed-driver-agents.test.sh b/tools/detect-changed-driver-agents.test.sh
index 913c484..456d432 100755
--- a/tools/detect-changed-driver-agents.test.sh
+++ b/tools/detect-changed-driver-agents.test.sh
@@ -114,4 +114,29 @@ YAMLEOF
   fi
 )
 
+tmpdir_workflow="$(mktemp -d "${TMPDIR:-/tmp}/gonavi-detect-workflow-change.XXXXXX")"
+git init -q "$tmpdir_workflow"
+mkdir -p "$tmpdir_workflow/tools" "$tmpdir_workflow/.github/workflows"
+cp tools/detect-changed-driver-agents.sh "$tmpdir_workflow/tools/detect-changed-driver-agents.sh"
+cat >"$tmpdir_workflow/.github/workflows/dev-build.yml" <<'YAMLEOF'
+name: Dev Build
+YAMLEOF
+
+(
+  cd "$tmpdir_workflow"
+  git add .
+  git -c user.name=GoNavi -c user.email=gonavi@example.test commit -q -m initial
+  base="$(git rev-parse HEAD)"
+
+  printf '\n# workflow logic changed\n' >> .github/workflows/dev-build.yml
+  git add .github/workflows/dev-build.yml
+  git -c user.name=GoNavi -c user.email=gonavi@example.test commit -q -m 'update workflow'
+
+  actual="$(bash ./tools/detect-changed-driver-agents.sh --base "$base" --head HEAD 2>/dev/null)"
+  if [[ "$actual" != *"mariadb"* || "$actual" != *"clickhouse"* || "$actual" != *"duckdb"* || "$actual" != *"elasticsearch"* ]]; then
+    echo "expected workflow change to trigger all driver builds, got: ${actual:-<empty>}" >&2
+    exit 1
+  fi
+)
+
 echo "detect-changed-driver-agents revision test passed"