diff --git a/pipeline_service/init.py b/pipeline_service/init.py
index bb78b56..db25766 100644
--- a/pipeline_service/init.py
+++ b/pipeline_service/init.py
@@ -787,75 +787,8 @@ def load_pipeline_service():
 
     add_startup(_failed_poller)
 
-    # v2 DDL auto-init: create tables and columns at startup
-    async def _init_v2_tables(app):
-        from sqlor.dbpools import DBPools as _DBP2
-        from appPublic.log import debug as _debug
-        try:
-            _db = _DBP2()
-            async with _db.sqlorContext("pipeline") as sor:
-                await sor.sqlExe(
-                    "CREATE TABLE IF NOT EXISTS pipeline_user_memory ("
-                    "id varchar(32) NOT NULL, memory_key varchar(64) NOT NULL,"
-                    "content text NOT NULL, category varchar(32) NOT NULL DEFAULT 'memory',"
-                    "priority int NOT NULL DEFAULT 0, access_count int NOT NULL DEFAULT 0,"
-                    "created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,"
-                    "updated_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,"
-                    "PRIMARY KEY (id), UNIQUE KEY uk_memory (memory_key, category),"
-                    "KEY idx_category_priority (category, priority)"
-                    ") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4", {})
-                _debug("pipeline_user_memory table ready")
-                # 应用部署主机逻辑账号表
-                await sor.sqlExe(
-                    "CREATE TABLE IF NOT EXISTS sd_deploy_accounts ("
-                    "id varchar(32) NOT NULL, user_id varchar(32) NOT NULL,"
-                    "account_name varchar(64) NOT NULL, deploy_dir varchar(500) NOT NULL,"
-                    "status varchar(20) NOT NULL DEFAULT 'active',"
-                    "sandbox_config text,"
-                    "created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,"
-                    "updated_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,"
-                    "PRIMARY KEY (id), UNIQUE KEY uk_account_name (account_name),"
-                    "UNIQUE KEY uk_user_id (user_id), KEY idx_status (status)"
-                    ") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4", {})
-                _debug("sd_deploy_accounts table ready")
-                # 工作环境表（沙箱本地/远程切换）
-                await sor.sqlExe(
-                    "CREATE TABLE IF NOT EXISTS sd_work_envs ("
-                    "id varchar(32) NOT NULL, owner_type varchar(10) NOT NULL,"
-                    "owner_id varchar(32) NOT NULL, mode varchar(10) NOT NULL DEFAULT 'local',"
-                    "remote_host varchar(200), remote_port int DEFAULT 22,"
-                    "remote_user varchar(100), remote_key_path varchar(500), remote_dir varchar(500),"
-                    "created_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP,"
-                    "updated_at datetime NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,"
-                    "PRIMARY KEY (id), UNIQUE KEY uk_owner (owner_type, owner_id)"
-                    ") ENGINE=InnoDB DEFAULT CHARSET=utf8mb4", {})
-                _debug("sd_work_envs table ready")
-                # agent_config columns
-                try:
-                    await sor.sqlExe("ALTER TABLE pipelines ADD COLUMN agent_config text", {})
-                    _debug("pipelines.agent_config column added")
-                except Exception:
-                    pass
-                try:
-                    await sor.sqlExe("ALTER TABLE sd_org_settings ADD COLUMN agent_config text", {})
-                    _debug("sd_org_settings.agent_config column added")
-                except Exception:
-                    pass
-                # failed 任务重试计数 + 失败原因
-                try:
-                    await sor.sqlExe("ALTER TABLE pipeline_tasks ADD COLUMN retry_count int NOT NULL DEFAULT 0", {})
-                    _debug("pipeline_tasks.retry_count column added")
-                except Exception:
-                    pass
-                try:
-                    await sor.sqlExe("ALTER TABLE pipeline_tasks ADD COLUMN last_error text", {})
-                    _debug("pipeline_tasks.last_error column added")
-                except Exception:
-                    pass
-        except Exception as e:
-            _debug(f"v2 DDL init: {e}")
-
-    add_startup(_init_v2_tables)
+    # 铁律：运行期不做任何 schema 变更。v2 引擎的建表/加列已全部迁到
+    # 部署期 scripts/create_tables.py（build.sh 会调用），此处不再启动时建表。
 
     debug(f"[{MODULE_NAME}] v{MODULE_VERSION} loaded — pipeline engine with role-agent + question loop")
     return True