diff --git a/app/harness/store.py b/app/harness/store.py
index 87fba07..8caad53 100644
--- a/app/harness/store.py
+++ b/app/harness/store.py
@@ -190,6 +190,9 @@ def init_seed(
     baseline_run_id: str,
     parent: str | None,
     description: str,
+    *,
+    pools_json: Path | None = None,
+    split_manifest: Path | None = None,
 ) -> Path:
     """在 store/seeds/<name> 写一个种子：权重 + baseline.db + seed.json。
 
@@ -202,6 +205,10 @@ def init_seed(
         baseline_run_id: 全量记录的 run_id，fresh 时注入 build_pools。
         parent: 来源（initial 为 None）。
         description: 人类可读说明。
+        pools_json: 可选，冻结切分 pools.json 源路径；提供时拷入 seed 目录，
+            供 fresh 训练时携带冻结切分进 workspace（见 init_workspace_from_seed）。
+        split_manifest: 可选，冻结切分 split_manifest.json 源路径；提供时拷入 seed
+            目录，供加载时校验 pools.json 内容指纹（pools_sha256）。
 
     返回:
         种子目录路径。
@@ -216,6 +223,10 @@ def init_seed(
     shutil.copytree(skills_dir, seed_dir / "skills")
     shutil.copytree(prompts_dir, seed_dir / "prompts")
     shutil.copy2(baseline_db, seed_dir / "baseline.db")
+    if pools_json is not None:
+        shutil.copy2(pools_json, seed_dir / "pools.json")
+    if split_manifest is not None:
+        shutil.copy2(split_manifest, seed_dir / "split_manifest.json")
     (seed_dir / "seed.json").write_text(
         json.dumps(
             {
diff --git a/app/harness/workspace.py b/app/harness/workspace.py
index 6c13452..3598b2b 100644
--- a/app/harness/workspace.py
+++ b/app/harness/workspace.py
@@ -196,6 +196,13 @@ def init_workspace_from_seed(
     shutil.copytree(seed_dir / "prompts", workspace_dir / "prompts" / "v1")
     shutil.copy2(seed_dir / "baseline.db", workspace_dir / "harness.db")
 
+    seed_pools = seed_dir / "pools.json"
+    if seed_pools.exists():
+        shutil.copy2(seed_pools, workspace_dir / "pools.json")
+        seed_manifest = seed_dir / "split_manifest.json"
+        if seed_manifest.exists():
+            shutil.copy2(seed_manifest, workspace_dir / "split_manifest.json")
+
     logger.info("Workspace 从种子 '{}' 初始化完成: {}", seed_name, workspace_dir)
     return meta["baseline_run_id"]
 
diff --git a/tests/unit/test_harness_store.py b/tests/unit/test_harness_store.py
index 721366b..92dc5cf 100644
--- a/tests/unit/test_harness_store.py
+++ b/tests/unit/test_harness_store.py
@@ -243,6 +243,24 @@ class TestInitSeed:
         with pytest.raises(FileExistsError, match="种子已存在"):
             init_seed(store, "dup", skills_dir, prompts_dir, baseline_db, "r1", None, "second")
 
+    def test_init_seed_carries_pools(self, tmp_path):
+        """提供 pools_json/split_manifest 时拷入 seed 目录。"""
+        from app.harness.store import init_seed
+
+        store = tmp_path / "store"
+        skills = tmp_path / "sk"; skills.mkdir(); (skills / "s.md").write_text("x")
+        prompts = tmp_path / "pr"; prompts.mkdir(); (prompts / "p.md").write_text("y")
+        db = tmp_path / "b.db"; db.write_text("db")
+        pools = tmp_path / "pools.json"; pools.write_text('{"split_mode":"global"}')
+        manifest = tmp_path / "split_manifest.json"; manifest.write_text('{"pools_sha256":"a"}')
+
+        seed_dir = init_seed(
+            store, "s1", skills, prompts, db, "infer_adhoc", None, "d",
+            pools_json=pools, split_manifest=manifest,
+        )
+        assert (seed_dir / "pools.json").exists()
+        assert (seed_dir / "split_manifest.json").exists()
+
 
 class TestListSeeds:
     """list_seeds 列出所有种子。"""
diff --git a/tests/unit/test_harness_workspace.py b/tests/unit/test_harness_workspace.py
index f11fb6d..f0fa2a2 100644
--- a/tests/unit/test_harness_workspace.py
+++ b/tests/unit/test_harness_workspace.py
@@ -183,6 +183,23 @@ def test_init_workspace_from_seed_missing_questions(store_dir: Path, workspace_d
     assert not workspace_dir.exists()
 
 
+def test_init_workspace_from_seed_carries_pools(store_dir: Path, workspace_dir: Path) -> None:
+    """seed 目录含 pools.json/split_manifest.json 时拷入 workspace。"""
+    # store_dir fixture 已构造 seed "initial"；补冻结产物到 seed 目录再初始化 workspace。
+    seed_dir = store_dir / "seeds" / "initial"
+    (seed_dir / "pools.json").write_text('{"split_mode":"global"}')
+    (seed_dir / "split_manifest.json").write_text('{"pools_sha256":"a"}')
+
+    init_workspace_from_seed(
+        workspace_dir,
+        store_dir,
+        seed_name="initial",
+        questions="benchmarks/Video-MME",
+    )
+    assert (workspace_dir / "pools.json").exists()
+    assert (workspace_dir / "split_manifest.json").exists()
+
+
 # ---------------------------------------------------------------------------
 # load_manifest
 # ---------------------------------------------------------------------------