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极简的智能体开发框架

Project description

✨特性

  • 装饰器一键接入 Function Call(Pydantic 模型自动生成工具描述)
  • 工作流 Agent 管线,按 level 顺序编排执行
  • 结构化响应解析:可传入 response_format(Pydantic)强类型返回

🧱环境要求

  • Python ≥ 3.8
  • 有效的 OpenAI API Key

📦安装

pip install pyxbrain

🚀快速开始:接入一个工具

在你的项目目录下创建一个 demo.py 文件:

from pydantic import BaseModel
from xbrain.core import xbrain_tool

class GenerateTag(BaseModel):
    topic: str

@xbrain_tool.Tool(model=GenerateTag)
def generate_tag(topic: str):
    return f"tag: {topic}"

在包的 __init__.py 文件中导入 demo.py

from demo import *

在项目入口处配置并运行 XBrain,此时 demo.py 中的 generate_tag 被成功接入:

from xbrain.core.chat import run
from xbrain.utils.config import Config

config = Config()
config.set_openai_config(
    base_url="https://api.openai.com/v1",
    api_key="YOUR_OPENAI_API_KEY",
    model="gpt-4o-2024-08-06",
)

messages = [{"role": "user", "content": "请为主题“Python”生成标签"}]
res = run(messages, user_prompt="你是一个能调用工具的助手")
print(res)

📐结构化响应(可选)

如果你希望模型严格返回某个结构,可以传入 response_format

from pydantic import BaseModel

class Summary(BaseModel):
    title: str
    keywords: list[str]

messages = [{"role": "user", "content": "请总结并给出关键词"}]
res = run(messages, user_prompt="结构化助手", response_format=Summary)
print(res)  # 返回满足 Summary 的内容

🧩工作流 Agent

使用 @Agent 装饰器定义节点,工作流将按 level 由小到大依次执行:

from xbrain.core.xbrain_agent import Agent, work_flow_run

@Agent
class A:
    level = 1
    def run(self, input):
        return "下一步输入"

@Agent
class B:
    level = 2
    def run(self, input):
        return "最终输出"

print(work_flow_run("起始输入"))  # "最终输出"

⚙️配置文件位置

  • 使用 xbrain.utils.config.Config 管理配置
  • 配置文件写入到用户目录:~/xbrain/config.yaml
  • 也可通过 config.set_openai_config(base_url, api_key, model) 动态设置并持久化

🤝如何贡献

你可以通过 Fork 项目、提交 PR 或在 Issue 中提出你的想法和建议。具体操作可参考 贡献指南

建议阅读 《提问的智慧》《如何向开源社区提问题》《如何有效地报告 Bug》《如何向开源项目提交无法解答的问题》

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