diff --git a/.gitea/workflows/prepare.yml b/.gitea/workflows/prepare.yml
index 0a00f983..58cd69b9 100644
--- a/.gitea/workflows/prepare.yml
+++ b/.gitea/workflows/prepare.yml
@@ -13,9 +13,6 @@ on:
     branches:
       - main
   workflow_dispatch:
-  schedule:
-    # 北京时间（UTC+8）每日 06:00；Prepare 成功后内部调用 thirdparty updater。
-    - cron: "0 22 * * *"
 
 concurrency:
   group: prepare-${{ github.repository }}
@@ -167,7 +164,7 @@ jobs:
           #   refs/heads/* 里，直接校验会失败；改用 PR head SHA，并在下方额外
           #   fetch PR ref 把 head 提交拉进 bare 仓库。下游 workflow_run 消费者
           #   读到的 head_sha 也正是这个 PR head，两者一致。
-          # - 其它事件（push / schedule / dispatch）：沿用 github.sha。
+          # - 其它事件（push / dispatch）：沿用 github.sha。
           if [ "$EVENT_NAME" = "pull_request" ]; then
             HEAD_SHA="${{ github.event.pull_request.head.sha }}"
             PR_NUMBER="${{ github.event.pull_request.number }}"
@@ -293,19 +290,3 @@ jobs:
             echo "- npm：\`$actual_npm_version\`"
             echo "- 缓存目录：\`$FNM_DIR\`"
           } >> "$GITHUB_STEP_SUMMARY"
-
-  update_thirdparty_scheduled:
-    # Gitea 1.27 会抑制由 gitea-actions 定时运行产生的后续 workflow_run。
-    # 因此 schedule 在 Prepare 成功后直接调用 updater；updater 本身不暴露
-    # schedule / workflow_dispatch 入口。push / 手动 Prepare 仍走原 workflow_run 链。
-    needs: prepare
-    if: ${{ github.event_name == 'schedule' }}
-    uses: ./.gitea/workflows/update-thirdparty-skills.yml
-    with:
-      source_branch: ${{ github.ref_name }}
-      source_sha: ${{ github.sha }}
-    secrets:
-      WORKFLOW: ${{ secrets.WORKFLOW }}
-    concurrency:
-      group: update-thirdparty-${{ github.repository }}
-      cancel-in-progress: false
diff --git a/.gitea/workflows/update-thirdparty-skills.yml b/.gitea/workflows/update-thirdparty-skills.yml
index 7e42269d..ebed7354 100644
--- a/.gitea/workflows/update-thirdparty-skills.yml
+++ b/.gitea/workflows/update-thirdparty-skills.yml
@@ -1,19 +1,11 @@
 name: ♻️ 更新第三方 Skills
 
 on:
-  # schedule 由 prepare.yml 在 prepare job 成功后内部调用；这里不提供独立
-  # schedule / workflow_dispatch 入口。
-  workflow_call:
-    inputs:
-      source_branch:
-        required: true
-        type: string
-      source_sha:
-        required: true
-        type: string
-    secrets:
-      WORKFLOW:
-        required: true
+  # Gitea 1.27 不会从 schedule 触发的 Prepare 继续派生 workflow_run。
+  # 定时刷新因此由 updater 直接拥有；push / PR 仍在 Prepare 成功后进入。
+  schedule:
+    # 北京时间（UTC+8）每日 06:00。
+    - cron: "0 22 * * *"
   workflow_run:
     workflows: ["🧰 准备环境"]
     types:
@@ -24,12 +16,10 @@ concurrency:
   cancel-in-progress: false
 
 env:
-  # Prepare 维护共享仓库并读取代码；此处 token 用于 worktree 内的 fetch/push。
+  # updater 会校准共享仓库；token 用于 fetch/push。
   ACCESS_TOKEN: ${{ secrets.WORKFLOW }}
   WORKSPACE_ROOT: "/data/workspace"
   WORKSPACE_SLOT: "thirdparty"
-  SOURCE_BRANCH: ${{ inputs.source_branch || github.event.workflow_run.head_branch }}
-  SOURCE_SHA: ${{ inputs.source_sha || github.event.workflow_run.head_sha }}
   THIRDPARTY_BRANCH: "thirdparty/skill"
   MANIFEST_PATH: ".gitea/ci/thirdparty_skills.json"
   GIT_USER_NAME: "ci[bot]"
@@ -37,9 +27,8 @@ env:
 
 jobs:
   update_and_sync:
-    # workflow_call 只能由 schedule Prepare 的 needs 成功路径进入；
-    # workflow_run 仍需要显式校验 Prepare 成功且来自主分支。
-    if: ${{ github.event_name == 'workflow_call' || (github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event != 'schedule' && (github.event.workflow_run.head_branch == 'main' || github.event.workflow_run.head_branch == 'master')) }}
+    # schedule 直接进入；workflow_run 需要 Prepare 成功且来自主分支。
+    if: ${{ github.event_name == 'schedule' || (github.event.workflow_run.conclusion == 'success' && (github.event.workflow_run.head_branch == 'main' || github.event.workflow_run.head_branch == 'master')) }}
     name: 📥 更新快照并同步 main
     runs-on: standard-ubuntu-22
     permissions:
@@ -54,9 +43,19 @@ jobs:
             echo "❌ 未配置 WORKFLOW secret，无法 fetch/push" >&2
             exit 1
           fi
+          if [ "$GITHUB_EVENT_NAME" = "schedule" ]; then
+            SOURCE_BRANCH="$GITHUB_REF_NAME"
+            SOURCE_SHA="$GITHUB_SHA"
+            echo "🌟 定时运行；目标分支: $SOURCE_BRANCH，提交: $SOURCE_SHA"
+          else
+            SOURCE_BRANCH="${{ github.event.workflow_run.head_branch }}"
+            SOURCE_SHA="${{ github.event.workflow_run.head_sha }}"
+          fi
+          echo "SOURCE_BRANCH=$SOURCE_BRANCH" >> "$GITHUB_ENV"
+          echo "SOURCE_SHA=$SOURCE_SHA" >> "$GITHUB_ENV"
           echo "✅ Token 已配置"
-          echo "🌿 上游分支: ${{ env.SOURCE_BRANCH }}"
-          echo "📝 上游提交: ${{ env.SOURCE_SHA }}"
+          echo "🌿 上游分支: $SOURCE_BRANCH"
+          echo "📝 上游提交: $SOURCE_SHA"
 
       - name: 📥 对齐 Worktree
         id: prepare_worktree
@@ -65,7 +64,8 @@ jobs:
           set -euo pipefail
 
           REPO_NAME="${{ github.event.repository.name }}"
-          HEAD_SHA="${{ env.SOURCE_SHA }}"
+          HEAD_SHA="$SOURCE_SHA"
+          REMOTE_URL="${{ github.server_url }}/${{ github.repository }}.git"
           REPOSITORY_DIR="${WORKSPACE_ROOT}/${REPO_NAME}/repository.git"
           WORKTREE_DIR="${WORKSPACE_ROOT}/${REPO_NAME}/worktrees/${WORKSPACE_SLOT}"
           WORKTREE_LOCK="${WORKSPACE_ROOT}/${REPO_NAME}/worktree-admin.lock"
@@ -76,13 +76,23 @@ jobs:
               exit 1
               ;;
           esac
-          if [ ! -d "$REPOSITORY_DIR" ] || \
-             [ "$(git --git-dir="$REPOSITORY_DIR" rev-parse --is-bare-repository 2>/dev/null)" != "true" ]; then
-            echo "Prepare 未创建有效共享 bare 仓库: $REPOSITORY_DIR" >&2
-            exit 1
-          fi
-          if ! git --git-dir="$REPOSITORY_DIR" cat-file -e "${HEAD_SHA}^{commit}"; then
-            echo "共享仓库中不存在上游提交: $HEAD_SHA" >&2
+          case "$REMOTE_URL" in
+            https://*) ;;
+            *)
+              echo "拒绝通过非 HTTPS remote 使用 WORKFLOW token: $REMOTE_URL" >&2
+              exit 1
+              ;;
+          esac
+
+          mkdir -p "$(dirname "$REPOSITORY_DIR")"
+          exec 9>"$WORKTREE_LOCK"
+          flock 9
+
+          if [ ! -e "$REPOSITORY_DIR" ]; then
+            git init --bare "$REPOSITORY_DIR"
+          elif [ ! -d "$REPOSITORY_DIR" ] || \
+               [ "$(git --git-dir="$REPOSITORY_DIR" rev-parse --is-bare-repository 2>/dev/null)" != "true" ]; then
+            echo "共享仓库路径不是有效 bare 仓库: $REPOSITORY_DIR" >&2
             exit 1
           fi
 
@@ -99,24 +109,32 @@ jobs:
           # `git remote set-url origin https://oauth2:$TOKEN@...` 仅在设置了
           # WORKFLOW env 时才触发；本 job 严禁设置 WORKFLOW，否则 token 会落盘到
           # 共享 bare 仓库的 config 并污染所有其它 slot。此处显式重置以固化约束。
-          git --git-dir="$REPOSITORY_DIR" remote set-url origin "${{ github.server_url }}/${{ github.repository }}.git"
+          if git --git-dir="$REPOSITORY_DIR" remote get-url origin >/dev/null 2>&1; then
+            git --git-dir="$REPOSITORY_DIR" remote set-url origin "$REMOTE_URL"
+          else
+            git --git-dir="$REPOSITORY_DIR" remote add origin "$REMOTE_URL"
+          fi
+
+          git --git-dir="$REPOSITORY_DIR" fetch \
+            --prune --prune-tags --tags --force origin \
+            '+refs/heads/*:refs/remotes/origin/*'
+
+          if ! git --git-dir="$REPOSITORY_DIR" cat-file -e "${HEAD_SHA}^{commit}"; then
+            echo "共享仓库中不存在上游提交: $HEAD_SHA" >&2
+            exit 1
+          fi
 
           if [ ! -f "$WORKTREE_DIR/.git" ]; then
-            exec 9>"$WORKTREE_LOCK"
-            flock 9
-
-            if [ ! -f "$WORKTREE_DIR/.git" ]; then
-              if [ -e "$WORKTREE_DIR" ]; then
-                echo "Worktree 路径已存在但不是 linked worktree: $WORKTREE_DIR" >&2
-                exit 1
-              fi
-              mkdir -p "$(dirname "$WORKTREE_DIR")"
-              git --git-dir="$REPOSITORY_DIR" worktree add --detach "$WORKTREE_DIR" "$HEAD_SHA"
+            if [ -e "$WORKTREE_DIR" ]; then
+              echo "Worktree 路径已存在但不是 linked worktree: $WORKTREE_DIR" >&2
+              exit 1
             fi
-
-            flock -u 9
+            mkdir -p "$(dirname "$WORKTREE_DIR")"
+            git --git-dir="$REPOSITORY_DIR" worktree add --detach "$WORKTREE_DIR" "$HEAD_SHA"
           fi
 
+          flock -u 9
+
           common_dir=$(git -C "$WORKTREE_DIR" rev-parse --path-format=absolute --git-common-dir)
           if [ "$common_dir" != "$(realpath "$REPOSITORY_DIR")" ]; then
             echo "Worktree 不属于共享仓库: $WORKTREE_DIR" >&2
@@ -818,5 +836,5 @@ jobs:
           # 持久化 worktree 由下次运行前的 detached checkout + reset + clean 复用，
           # 此处仅在结束时 detach，避免留下已检出的分支阻塞其它 worktree。
           if [ -n "${REPO_DIR:-}" ] && [ -f "$REPO_DIR/.git" ]; then
-            git -C "$REPO_DIR" checkout --detach --force "${SOURCE_SHA}" 2>/dev/null || true
+            git -C "$REPO_DIR" checkout --detach --force "${SOURCE_SHA:-}" 2>/dev/null || true
           fi
diff --git a/test/README.md b/test/README.md
index c1c5184f..5eb11704 100644
--- a/test/README.md
+++ b/test/README.md
@@ -34,13 +34,15 @@ python test/integration/check_doc_links.py
 
 ## 🧭 CI 自动化测试
 
-测试套件通过 Gitea Actions 自动运行（见 `.gitea/workflows/checks.yml` 的 `tests` job）：
+测试套件通过 Gitea Actions 自动运行（见 `.gitea/workflows/checks.yml` 的
+`🔎 规范检查 + 全量测试` job）：
 
 - **触发方式**：`workflow_run`——「🧰 准备环境」（`prepare.yml`）完成后触发。
-  Prepare 监听 `push:main`、`pull_request`、`workflow_dispatch` 与每日 `schedule`，
-  故推送到 main、对 main 开 PR 或手动运行 Prepare 都会经 Prepare 传导到测试。
+  Prepare 监听 `push:main`、`pull_request` 与 `workflow_dispatch`；推送到 main、
+  对 main 开 PR 或手动运行 Prepare 都会经 Prepare 传导到测试。每日 `schedule`
+  只属于 thirdparty updater，不会触发这套提交验证。
 - **运行平台**：standard-ubuntu-22
-- **注**：`checks.yml` 同时包含 commit message 规范校验（`standards` job）。
+- **注**：同一 job 先校验 commit message，再运行全量测试。
 
 ## 📚 测试详解
 
diff --git a/test/test_thirdparty_skills_pipeline.py b/test/test_thirdparty_skills_pipeline.py
index 3b4bea95..02027168 100644
--- a/test/test_thirdparty_skills_pipeline.py
+++ b/test/test_thirdparty_skills_pipeline.py
@@ -228,44 +228,36 @@ class ThirdpartySkillsPipelineTests(unittest.TestCase):
         self.assertIn("update_thirdparty_snapshots", text)
         self.assertIn("sync_thirdparty_skills", text)
 
-    def test_scheduled_prepare_calls_updater_without_an_independent_entry(self):
+    def test_schedule_runs_updater_without_changing_prepare_run_shape(self):
         prepare_text = PREPARE_WORKFLOW.read_text(encoding="utf-8")
         updater_text = WORKFLOW.read_text(encoding="utf-8")
 
+        self.assertEqual(workflow_mapping_keys(prepare_text, "jobs"), ["prepare"])
         self.assertEqual(
-            workflow_mapping_keys(prepare_text, "jobs"),
-            ["prepare", "update_thirdparty_scheduled"],
+            workflow_mapping_keys(prepare_text, "on"),
+            ["push", "pull_request", "workflow_dispatch"],
         )
         self.assertEqual(
             workflow_mapping_keys(updater_text, "on"),
-            ["workflow_call", "workflow_run"],
+            ["schedule", "workflow_run"],
         )
-        self.assertIn("    needs: prepare", prepare_text)
-        self.assertIn("    if: ${{ github.event_name == 'schedule' }}", prepare_text)
-        self.assertIn(
-            "    uses: ./.gitea/workflows/update-thirdparty-skills.yml",
-            prepare_text,
-        )
-        self.assertIn("      source_branch: ${{ github.ref_name }}", prepare_text)
-        self.assertIn("      source_sha: ${{ github.sha }}", prepare_text)
-        self.assertIn("      WORKFLOW: ${{ secrets.WORKFLOW }}", prepare_text)
-        self.assertIn("  workflow_call:", updater_text)
-        self.assertIn("      source_branch:", updater_text)
-        self.assertIn("      source_sha:", updater_text)
-        self.assertIn("      WORKFLOW:", updater_text)
-        self.assertIn("        required: true", updater_text)
-        self.assertIn(
-            "SOURCE_BRANCH: ${{ inputs.source_branch || "
-            "github.event.workflow_run.head_branch }}",
-            updater_text,
-        )
-        self.assertIn(
-            "SOURCE_SHA: ${{ inputs.source_sha || "
-            "github.event.workflow_run.head_sha }}",
-            updater_text,
-        )
-        self.assertIn("github.event_name == 'workflow_call' ||", updater_text)
-        self.assertIn("github.event.workflow_run.event != 'schedule'", updater_text)
+        self.assertNotIn("update_thirdparty_scheduled", prepare_text)
+        self.assertNotIn("uses: ./.gitea/workflows/", prepare_text)
+        self.assertNotIn("  schedule:", prepare_text)
+        self.assertNotIn("  workflow_call:", updater_text)
+        self.assertIn('    - cron: "0 22 * * *"', updater_text)
+        self.assertIn("github.event_name == 'schedule' ||", updater_text)
+        self.assertNotIn("github.event.workflow_run.event != 'schedule'", updater_text)
+        self.assertIn('SOURCE_BRANCH="$GITHUB_REF_NAME"', updater_text)
+        self.assertIn('SOURCE_SHA="$GITHUB_SHA"', updater_text)
+        self.assertIn('SOURCE_BRANCH="${{ github.event.workflow_run.head_branch }}"', updater_text)
+        self.assertIn('SOURCE_SHA="${{ github.event.workflow_run.head_sha }}"', updater_text)
+        self.assertIn('echo "SOURCE_BRANCH=$SOURCE_BRANCH" >> "$GITHUB_ENV"', updater_text)
+        self.assertIn('echo "SOURCE_SHA=$SOURCE_SHA" >> "$GITHUB_ENV"', updater_text)
+        self.assertIn('HEAD_SHA="$SOURCE_SHA"', updater_text)
+        self.assertIn('checkout --detach --force "${SOURCE_SHA:-}"', updater_text)
+        self.assertIn('git init --bare "$REPOSITORY_DIR"', updater_text)
+        self.assertIn("'+refs/heads/*:refs/remotes/origin/*'", updater_text)
 
     def test_inline_workflow_exposes_manifest_and_publish_contract(self):
         text = WORKFLOW.read_text(encoding="utf-8")