- agent_runtime 模块与 agent_chat API,前端 AgentChat 视图与路由对接 - workflow_engine: code 节点命名空间与 json 引用修复 - llm_service: 工具调用 extra_body(如 DeepSeek) - create_homework_manager_agent / _3 脚本与测试脚本扩展 - frontend: WORKFLOW_EXECUTION_HTTP_TIMEOUT_MS、AgentChatPreview/MainLayout 等 - 文档:架构说明与自主 Agent 改造完成情况 Made-with: Cursor
488 lines
22 KiB
Python
488 lines
22 KiB
Python
#!/usr/bin/env python3
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"""
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创建或更新「学生作业管理助手」Agent:Start → Cache 读 → Transform 合并 → LLM → Code 拆分 JSON →
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Transform 拼装 → Cache 写 → 输出。
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侧重:记录作业项、截止日、优先级;跟进完成情况;温和督促与周回顾(不代写可提交的作业正文)。
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强化:**结构化 homework_board** 写入 `memory.context.homework_board`(Redis / 持久记忆合并)。
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「学生作业管理助手2号」(名称含 **2号** 或 `HOMEWORK_FAST_AGENT=1`)额外侧重:**更长 Redis TTL**、收紧预算与工具轮次、默认 **deepseek-v4-flash**(可通过环境变量改)、DeepSeek **`extra_body` 关闭 thinking**(更快更稳的工具链)、Code 节点兜底避免整条失败。
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「学生作业管理助手3号」(名称含 **3号** 或 `HOMEWORK_V3=1`):**基础设施与 2 号同档**(TTL、history 上限、8192 tokens、thinking 关闭等);提示词用**完整版**并追加 **知你客服14号记忆栈**说明(`user_memory_*`、四字段记忆包、与 `agent记忆实现方案.md` 对齐)。也可用 `scripts/create_homework_manager_agent_3.py` 一键创建。
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用法:
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cd backend && .\\venv\\Scripts\\python.exe scripts/create_homework_manager_agent.py
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环境变量:
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PLATFORM_BASE_URL, PLATFORM_USERNAME, PLATFORM_PASSWORD
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AGENT_NAME(默认 学生作业管理助手);2 号:`AGENT_NAME=学生作业管理助手2号`;3 号:`AGENT_NAME=学生作业管理助手3号`
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HOMEWORK_FAST_AGENT=1(可选,显式启用 2 号快速档案)
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HOMEWORK_V3=1(可选,显式启用 3 号档案;通常用名称含「3号」即可)
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HOMEWORK_LLM_PROVIDER / HOMEWORK_LLM_MODEL / HOMEWORK_LLM_TIMEOUT(可选)
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"""
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from __future__ import annotations
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import json
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import os
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import sys
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from typing import Any, Dict, List, Optional, Tuple
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import requests
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BACKEND_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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if BACKEND_DIR not in sys.path:
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sys.path.insert(0, BACKEND_DIR)
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BASE = os.getenv("PLATFORM_BASE_URL", "http://127.0.0.1:8037").rstrip("/")
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USER = os.getenv("PLATFORM_USERNAME", "admin")
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PWD = os.getenv("PLATFORM_PASSWORD", "123456")
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AGENT_NAME = os.getenv("AGENT_NAME", "学生作业管理助手")
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FAST_PROFILE = "2号" in AGENT_NAME or os.getenv("HOMEWORK_FAST_AGENT", "").strip().lower() in (
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"1",
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"true",
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"yes",
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)
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V3_PROFILE = "3号" in AGENT_NAME or os.getenv("HOMEWORK_V3", "").strip().lower() in (
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"1",
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"true",
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"yes",
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)
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# 2 号 / 3 号共享:长 TTL、较高 max_tokens、可选关闭 thinking 等与「知你类」记忆工程对齐的基础设施
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ZHINI_STYLE_INFRA = bool(FAST_PROFILE or V3_PROFILE)
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PROVIDER = os.getenv(
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"HOMEWORK_LLM_PROVIDER", os.getenv("ENTERPRISE_LLM_PROVIDER", "deepseek")
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)
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MODEL = os.getenv(
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"HOMEWORK_LLM_MODEL", os.getenv("ENTERPRISE_LLM_MODEL", "deepseek-v4-flash")
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)
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_DEFAULT_TIMEOUT = "120" if ZHINI_STYLE_INFRA else "180"
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REQ_TIMEOUT = max(
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30,
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int(
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os.getenv(
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"HOMEWORK_LLM_TIMEOUT",
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os.getenv("ENTERPRISE_LLM_TIMEOUT", _DEFAULT_TIMEOUT),
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)
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),
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)
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if ZHINI_STYLE_INFRA:
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REQ_TIMEOUT = min(REQ_TIMEOUT, 150)
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BUDGET_CONFIG = (
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{"max_steps": 80, "max_llm_invocations": 6, "max_tool_calls": 16}
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if ZHINI_STYLE_INFRA
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else {"max_steps": 100, "max_llm_invocations": 8, "max_tool_calls": 24}
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)
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_CACHE_TTL = 1209600 if ZHINI_STYLE_INFRA else 604800
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_MAX_HISTORY_LENGTH = 48 if ZHINI_STYLE_INFRA else 40
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HOMEWORK_TOOLS = ["file_read", "text_analyze", "datetime", "json_process"]
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CODE_SPLIT_HOMEWORK_TAIL_JSON = r"""
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def _tail_json_obj(s):
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if not isinstance(s, str):
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return None
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t = s.strip()
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if not t:
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return None
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last_nl = t.rfind("\n")
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last_line = t[last_nl + 1 :].strip() if last_nl >= 0 else t
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if not last_line.startswith("{"):
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return None
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try:
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o = loads(last_line)
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return o if isinstance(o, dict) else None
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except Exception:
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return None
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def _llm_text(inp):
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if isinstance(inp, str):
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return inp
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if isinstance(inp, dict):
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out = inp.get("output")
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if isinstance(out, str):
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return out
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if isinstance(out, dict):
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return str(out.get("output") or out.get("text") or out.get("content") or "")
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if out is not None:
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return str(out)
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return str(inp)
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try:
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raw = _llm_text(input_data)
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obj = _tail_json_obj(raw)
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hb = {}
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if obj:
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hb = obj.get("homework_board")
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if not isinstance(hb, dict):
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hb = {}
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reply_visible = raw.strip() if isinstance(raw, str) else str(raw).strip()
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if obj and isinstance(raw, str):
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lines = raw.splitlines()
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while lines and not lines[-1].strip():
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lines.pop()
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if lines and lines[-1].strip().startswith("{"):
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lines.pop()
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reply_visible = "\n".join(lines).strip()
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result = {"reply": reply_visible, "homework_board": hb}
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except Exception:
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try:
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_raw = _llm_text(input_data)
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_reply = (_raw.strip() if isinstance(_raw, str) else str(_raw)).strip()
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except Exception:
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_reply = ""
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result = {"reply": _reply, "homework_board": {}}
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"""
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# 与 agent记忆实现方案 / 知你客服线对齐:末行 JSON 含 user_profile、禁止无视已有快照与对话
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HOMEWORK_PROMPT_ZHINI_ALIGN = """
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【与知你记忆方案对齐 · 必守】
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- 末行单行 JSON 须**完整可解析**。除 `homework_board` 外**必须**含 `user_profile`:用户若已说「我叫…」「我的名字是…」「叫我…」等,须写入 "user_profile":{"name":"…"};未获知则 "user_profile":{}。
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- 先读上方「最近对话」「作业快照」再作答:用户问「有什么作业」「我有什么语文作业」等时,若快照或对话里**已有**科目/条目,须**逐条复述**,禁止说「没有记录」「暂时没有」或逼用户从零重述,除非快照与对话确为空。
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- 防截断:表格与寒暄从简;**宁可少写修饰语也不得省略末行 JSON**;`homework_board.items` 与正文已列条数一致,禁止用空 `items` 覆盖历史条目。
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"""
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# 仅 3 号追加:显式对标知你客服 14 号 / agent记忆实现方案 中的记忆栈描述
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HOMEWORK_V3_ZHINI14_APPEND = """
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【3号 · 知你客服14号记忆方案(工程对齐)】
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- 与知你客服14号、`agent记忆实现方案.md` 一致:**Cache 键** `user_memory_{user_id}`;执行须带稳定 **`user_id`**(预览端按 Agent 维度持久化),避免退化为 `default` 串会话。
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- **记忆包四字段**:`conversation_history`、`conversation_summary`、`user_profile`、`context`;作业结构化数据在 **`context.homework_board`**(与 2 号相同);引擎对末行 JSON 的 `user_profile` 与 Cache 合并逻辑与知你主线一致。
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- **Redis + 可选 MySQL**:节点 TTL 见配置;平台开启 `MEMORY_PERSIST_DB_ENABLED` 时与 `persistent_user_memories` 对齐合并,冷启动仍可拉回。
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"""
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def _homework_prompt(agent_display_name: str) -> str:
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return f"""你是「{agent_display_name}」,帮助学生**记作业**与**监督完成**,语气友好、具体、可执行。
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【核心能力】
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1. **记作业**:从用户自然语言中提取「科目 / 作业内容 / 截止日期与时间 / 老师要求要点 / 预估耗时」,整理成清单。
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- 若用户用回形针**上传**了文件或照片,消息里会出现「相对工作区根路径」列表:**必须先调用 file_read**,用返回的 `content`(正文/OCR 文本)整理进作业清单,勿编造未读到的内容。
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- 支持常见格式:纯文本/Markdown、**PDF**、**Word(.docx)**、**Excel(.xlsx)**、**照片**(作业拍照等,依赖 OCR;若工具返回需安装 Tesseract 等提示,请如实转告用户并仍可基于用户口述继续记作业)。
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2. **监督完成**:根据清单追问进度(未开始/进行中/已完成);对临近截止的任务给**温和提醒**(不制造焦虑);可建议拆成小步骤与每日 15–30 分钟微习惯。
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3. **周回顾**:用户要求时,用 json_process 或清晰表格输出本周完成率、延期项与下周优先三件事。
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【原则】
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- **不代写**可提交的作业正文、实验报告、论文等;可提供提纲、自检表、引用规范提示。
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- 日期时间以用户所在语境为准;需要当前时间可借助工具 datetime。
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- 不确定的信息(如具体截止时刻)先列出假设并请用户确认。
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- 输出优先中文;列表用编号,便于复制到备忘录。
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【交互习惯】
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- 用户只说「记一下数学作业」时,主动追问截止日与具体要求(一次问 1–2 个点,避免审问感)。
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- 用户汇报「做完了」时,确认是否需拍照/上传检查清单,并建议归档到下一条任务前的小结一句话。
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【持久记忆(必须利用)】
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- 当前用户画像:{{memory.user_profile}}
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- 历史摘要:{{memory.conversation_summary}}
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- 最近历史:{{memory.conversation_history}}
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- **已知结构化作业快照(优先以此为准,可与正文互相补充)**:{{memory.context.homework_board}}
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- 回答前先结合历史判断:本轮是否在“延续上一轮作业条目”。若是,不要重复问已确认信息(如科目、截止日期)。
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- 若上一轮你已经列出作业清单,而本轮用户只补充了「截止时间/科目/完成状态」中的一部分,必须把该信息回填到上一轮清单并给出“更新后的清单”;禁止再问“具体有哪些作业”。
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- 当历史中已出现明确作业条目(如 4 条作业列表)时,默认这些条目继续有效,除非用户明确说“作业变了/重置”。
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{HOMEWORK_PROMPT_ZHINI_ALIGN}
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【结构化记忆(强制 · 机器可读)】
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- 在正文结束后,**最后单独一行**输出**恰好一行**合法 JSON(勿 markdown 围栏),格式示例:
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{{"homework_board":{{"subject":"语文","deadline_text":"2026-05-01","items":[{{"title":"写生字","detail":"第八课"}}],"notes":""}},"user_profile":{{}}}}
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- `homework_board` 必须与正文一致;若本轮用户只补充截止日/科目,须在 `homework_board` 中**合并更新**已有 `items`(可参考上面的快照与对话),**禁止用空列表覆盖已有条目**。
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- 该行仅供系统解析;正文不要复述该行 JSON。
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"""
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def _homework_prompt_fast(agent_display_name: str) -> str:
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return f"""你是「{agent_display_name}」,帮助学生**记作业**与**跟进度**;回复简短、可执行、中文优先。
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【持久记忆 — 先读后答】
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- 画像:{{memory.user_profile}}
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- 摘要:{{memory.conversation_summary}}
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- 最近对话:{{memory.conversation_history}}
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- **作业快照 homework_board(优先采信,勿臆测)**:{{memory.context.homework_board}}
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【工具 — 省延迟】仅当消息里出现**上传文件的工作区路径列表**时才调用 file_read;无附件时不要调用 file_read。需要当前时间用 datetime;结构化整理可用 json_process。
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【原则】不代写可提交正文;延续上一轮时不要重复追问已确认的科目/清单;用户只改截止日或状态时合并更新清单。
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{HOMEWORK_PROMPT_ZHINI_ALIGN}
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【末行 JSON — 强制】正文结束后**单独一行**合法 JSON(勿 markdown 围栏),例如:
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{{"homework_board":{{"subject":"…","deadline_text":"…","items":[{{"title":"…","detail":"…"}}],"notes":"…"}},"user_profile":{{}}}}
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须与正文一致;**合并**已有 items,禁止用空列表覆盖历史条目。
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"""
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def _sanitize_edges(edges: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
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seen: set = set()
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out: List[Dict[str, Any]] = []
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for e in edges or []:
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s, t = e.get("source"), e.get("target")
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if not s or not t or s == t:
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continue
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key = (s, t, e.get("sourceHandle") or "")
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if key in seen:
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continue
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seen.add(key)
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ne = dict(e)
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if not ne.get("targetHandle"):
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ne["targetHandle"] = "left"
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if not ne.get("id"):
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sh = ne.get("sourceHandle") or "r"
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ne["id"] = f"e_{s}_{t}_{sh}"
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out.append(ne)
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return out
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def build_workflow() -> Dict[str, Any]:
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llm_pos: Tuple[int, int] = (680, 220)
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if FAST_PROFILE:
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_prompt = _homework_prompt_fast(AGENT_NAME)
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elif V3_PROFILE:
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_prompt = _homework_prompt(AGENT_NAME) + HOMEWORK_V3_ZHINI14_APPEND
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else:
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_prompt = _homework_prompt(AGENT_NAME)
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_llm_temp = 0.22 if FAST_PROFILE else (0.25 if V3_PROFILE else 0.3)
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_llm_mti = 6 if FAST_PROFILE else (8 if V3_PROFILE else 10)
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_llm_data: Dict[str, Any] = {
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"label": "作业管理",
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"prompt": _prompt,
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"provider": PROVIDER,
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"model": MODEL,
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"temperature": _llm_temp,
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"request_timeout": REQ_TIMEOUT,
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"enable_tools": True,
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"tools": list(HOMEWORK_TOOLS),
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"selected_tools": list(HOMEWORK_TOOLS),
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"max_tool_iterations": _llm_mti,
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}
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if ZHINI_STYLE_INFRA:
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# 避免截断末行 JSON → homework_board / user_profile 无法落库
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_llm_data["max_tokens"] = 8192
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if ZHINI_STYLE_INFRA and PROVIDER.strip().lower() == "deepseek":
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_llm_data["extra_body"] = {"thinking": {"type": "disabled"}}
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nodes: List[Dict[str, Any]] = [
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{"id": "start-1", "type": "start", "position": {"x": 80, "y": 220}, "data": {"label": "开始"}},
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{
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"id": "cache-query",
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"type": "cache",
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"position": {"x": 300, "y": 220},
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"data": {
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"label": "读取记忆",
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"operation": "get",
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"key": "user_memory_{user_id}",
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"ttl": _CACHE_TTL,
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"default_value": "{\"conversation_history\": [], \"conversation_summary\": \"\", \"user_profile\": {}, \"context\": {}}",
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"input_variables": [],
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"output_variables": [],
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},
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},
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{
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"id": "transform-merge",
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"type": "transform",
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"position": {"x": 510, "y": 220},
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"data": {
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"label": "合并输入与记忆",
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"mode": "merge",
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"mapping": {
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"query": "{{query}}",
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"user_input": "{{query}}",
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"user_id": "{{user_id}}",
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"timestamp": "{{timestamp}}",
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"attachments": "{{attachments}}",
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"memory": "{{output}}",
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"conversation_history": "{{output.conversation_history}}",
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"user_profile": "{{output.user_profile}}",
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"context": "{{output.context}}",
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},
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"input_variables": [],
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"output_variables": [],
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},
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},
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{
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"id": "llm-homework",
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"type": "llm",
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"position": {"x": llm_pos[0], "y": llm_pos[1]},
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"data": dict(_llm_data),
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},
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{
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"id": "code-split-homework-json",
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"type": "code",
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"position": {"x": llm_pos[0] + 260, "y": 220},
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"data": {
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"label": "拆分正文与homework_board",
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"language": "python",
|
||
"code": CODE_SPLIT_HOMEWORK_TAIL_JSON,
|
||
"timeout": 20,
|
||
},
|
||
},
|
||
{
|
||
"id": "transform-build-append",
|
||
"type": "transform",
|
||
"position": {"x": llm_pos[0] + 520, "y": 220},
|
||
"data": {
|
||
"label": "拼装记忆更新",
|
||
"mode": "merge",
|
||
"mapping": {
|
||
"query": "{{query}}",
|
||
"user_input": "{{user_input}}",
|
||
"user_id": "{{user_id}}",
|
||
"timestamp": "{{timestamp}}",
|
||
"memory": "{{memory}}",
|
||
"output": "{{reply}}",
|
||
"homework_board_update": "{{homework_board}}",
|
||
},
|
||
},
|
||
},
|
||
{
|
||
"id": "cache-update-append",
|
||
"type": "cache",
|
||
"position": {"x": llm_pos[0] + 780, "y": 220},
|
||
"data": {
|
||
"label": "写回记忆(追加)",
|
||
"operation": "set",
|
||
"key": "user_memory_{user_id}",
|
||
"ttl": _CACHE_TTL,
|
||
"max_history_length": _MAX_HISTORY_LENGTH,
|
||
"value": "{\"conversation_summary\": (memory.get(\"conversation_summary\") or \"\"), \"conversation_history\": (memory.get(\"conversation_history\") or []) + [{\"role\": \"user\", \"content\": \"{{user_input}}\", \"timestamp\": \"{{timestamp}}\"}, {\"role\": \"assistant\", \"content\": \"{{output}}\", \"timestamp\": \"{{timestamp}}\"}], \"user_profile\": memory.get(\"user_profile\", {}), \"context\": memory.get(\"context\", {})}",
|
||
"input_variables": [],
|
||
"output_variables": [],
|
||
},
|
||
},
|
||
{
|
||
"id": "transform-output-format",
|
||
"type": "transform",
|
||
"position": {"x": llm_pos[0] + 1040, "y": 220},
|
||
"data": {
|
||
"label": "输出格式",
|
||
"mode": "merge",
|
||
"mapping": {
|
||
"reply": "{{output}}",
|
||
"output": "{{output}}",
|
||
"result": "{{output}}",
|
||
},
|
||
},
|
||
},
|
||
{"id": "end-1", "type": "end", "position": {"x": llm_pos[0] + 1300, "y": 220}, "data": {"label": "结束", "output_format": "text"}},
|
||
]
|
||
edges = _sanitize_edges(
|
||
[
|
||
{"source": "start-1", "target": "cache-query", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "cache-query", "target": "transform-merge", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "transform-merge", "target": "llm-homework", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "transform-merge", "target": "transform-build-append", "sourceHandle": "left", "targetHandle": "left"},
|
||
{"source": "llm-homework", "target": "code-split-homework-json", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "code-split-homework-json", "target": "transform-build-append", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "transform-build-append", "target": "cache-update-append", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "cache-update-append", "target": "transform-output-format", "sourceHandle": "right", "targetHandle": "left"},
|
||
{"source": "transform-output-format", "target": "end-1", "sourceHandle": "right", "targetHandle": "left"},
|
||
]
|
||
)
|
||
return {"nodes": nodes, "edges": edges}
|
||
|
||
|
||
def _validate_local(wf: Dict[str, Any]) -> None:
|
||
from app.services.workflow_validator import validate_workflow
|
||
|
||
r = validate_workflow(wf.get("nodes") or [], wf.get("edges") or [])
|
||
if not r.get("valid"):
|
||
errs = r.get("errors") or []
|
||
raise ValueError("工作流校验失败: " + "; ".join(errs))
|
||
|
||
|
||
def _find_agent_id(h: Dict[str, str], name: str) -> Optional[str]:
|
||
r = requests.get(f"{BASE}/api/v1/agents", params={"search": name, "limit": 80}, headers=h, timeout=45)
|
||
if r.status_code != 200:
|
||
return None
|
||
for a in r.json() or []:
|
||
if a.get("name") == name:
|
||
return a.get("id")
|
||
return None
|
||
|
||
|
||
def main() -> int:
|
||
wf = build_workflow()
|
||
try:
|
||
_validate_local(wf)
|
||
except ValueError as e:
|
||
print(e, file=sys.stderr)
|
||
return 1
|
||
|
||
r = requests.post(
|
||
f"{BASE}/api/v1/auth/login",
|
||
data={"username": USER, "password": PWD},
|
||
headers={"Content-Type": "application/x-www-form-urlencoded"},
|
||
timeout=15,
|
||
)
|
||
if r.status_code != 200:
|
||
print("登录失败:", r.status_code, r.text[:500], file=sys.stderr)
|
||
return 1
|
||
token = r.json().get("access_token")
|
||
if not token:
|
||
print("无 access_token", file=sys.stderr)
|
||
return 1
|
||
h = {"Authorization": f"Bearer {token}", "Content-Type": "application/json"}
|
||
|
||
_max_tool_it = 6 if FAST_PROFILE else (8 if V3_PROFILE else 10)
|
||
if FAST_PROFILE:
|
||
_profile_note = (
|
||
f"快速档案(2号):TTL {_CACHE_TTL}s,history≤{_MAX_HISTORY_LENGTH},工具轮≤{_max_tool_it},"
|
||
f"budget {BUDGET_CONFIG};DeepSeek 关闭 thinking(若适用)。"
|
||
)
|
||
elif V3_PROFILE:
|
||
_profile_note = (
|
||
f"3号:基于2号基础设施(TTL {_CACHE_TTL}s,history≤{_MAX_HISTORY_LENGTH},"
|
||
f"工具轮≤{_max_tool_it},max_tokens 8192,budget {BUDGET_CONFIG})+ "
|
||
"知你客服14号记忆方案(user_memory_*、四字段、MySQL 可选);完整提示词 + 记忆栈说明。"
|
||
)
|
||
else:
|
||
_profile_note = ""
|
||
desc = (
|
||
f"{AGENT_NAME}:记作业(科目、内容、截止日)、跟进度、温和督促与周回顾;"
|
||
"支持上传文件/照片后用 file_read 提取正文(文本、PDF、docx、xlsx、图片 OCR)与 json_process 整理;"
|
||
f"默认模型 {PROVIDER}/{MODEL},单次执行内工具迭代上限 {_max_tool_it};"
|
||
"持久记忆:Redis/cache + conversation_history;结构化 homework_board 写入 memory.context(末行 JSON)。 "
|
||
+ _profile_note
|
||
)
|
||
|
||
existing = _find_agent_id(h, AGENT_NAME)
|
||
if existing:
|
||
ur = requests.put(
|
||
f"{BASE}/api/v1/agents/{existing}",
|
||
headers=h,
|
||
json={
|
||
"description": desc,
|
||
"workflow_config": wf,
|
||
"budget_config": BUDGET_CONFIG,
|
||
},
|
||
timeout=120,
|
||
)
|
||
if ur.status_code != 200:
|
||
print("更新失败:", ur.status_code, ur.text[:800], file=sys.stderr)
|
||
return 1
|
||
print("已更新", AGENT_NAME, existing)
|
||
print(json.dumps({"id": existing, "name": AGENT_NAME}, ensure_ascii=False))
|
||
return 0
|
||
|
||
cr = requests.post(
|
||
f"{BASE}/api/v1/agents",
|
||
headers=h,
|
||
json={
|
||
"name": AGENT_NAME,
|
||
"description": desc,
|
||
"workflow_config": wf,
|
||
"budget_config": BUDGET_CONFIG,
|
||
},
|
||
timeout=120,
|
||
)
|
||
if cr.status_code != 201:
|
||
print("创建失败:", cr.status_code, cr.text[:800], file=sys.stderr)
|
||
return 1
|
||
aid = cr.json()["id"]
|
||
print("已创建", AGENT_NAME, aid)
|
||
print(json.dumps({"id": aid, "name": AGENT_NAME}, ensure_ascii=False))
|
||
return 0
|
||
|
||
|
||
if __name__ == "__main__":
|
||
raise SystemExit(main())
|