Agent2 — 模块化 Agent 系统框架

一个从零构建的 Python Agent 系统框架，用于深入理解 AI Agent 的核心架构和设计模式。

核心特性

特性	说明
🧠 LLM 抽象层	统一 OpenAI 兼容接口，支持 OpenAI / DeepSeek / Ollama / vLLM / Qwen 等
🔧 工具系统	`@tool` 装饰器自动生成 JSON Schema，支持同步/异步
🔄 ReAct 模式	Thought → Action → Observation 推理循环
📋 Plan-and-Execute	先规划后执行，支持动态重规划
🪞 自我反思	ReflectionMixin 添加输出自评和迭代改进
💾 记忆系统	短期 (WorkingMemory) + 长期 (LongTermMemory/TF-IDF)
👥 多 Agent 编排	顺序/监督者/辩论三种协作模式

快速开始

# 安装
uv pip install -e "."

# 设置 API Key
export AGENT2_API_KEY=sk-...

最简示例

import asyncio
from agent2.llm import create_llm
from agent2.agent import ReActAgent
from agent2.tools.builtin import python_exec

async def main():
    llm = create_llm("openai", model="gpt-4o-mini")
    agent = ReActAgent("assistant", llm=llm, tools=[python_exec])
    result = await agent.run("What is 2^100?")
    print(result)

asyncio.run(main())

示例

uv run examples/01_single_agent.py   # 单 Agent ReAct
uv run examples/02_tool_use.py       # 自定义工具
uv run examples/03_planning.py       # Plan-and-Execute
uv run examples/04_memory.py         # 记忆系统（无需 API Key）
uv run examples/05_multi_agent.py    # 多 Agent 协作

架构

agent2/
├── llm/        # LLM 抽象层 — 统一多提供商接口
├── tools/      # 工具系统 — @tool 装饰器 + Registry
├── agent/      # Agent 核心 — ReAct / Planner / Reflection
├── memory/     # 记忆系统 — Working / LongTerm
├── crew/       # 多 Agent — Sequential / Supervisor / Debate
└── utils/      # 配置 + 日志

License

MIT

Metadata

Release files for agent2 0.1.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for agent2 0.1.1
File	Size	Uploaded
agent2-0.1.1.tar.gz	80.6 kB	Aug 27, 2026	Details

Built distribution (wheel)

Table of built distributions (wheels) for agent2 0.1.1
File	Interpreter	ABI	Platform	Reset
agent2-0.1.1-py3-none-any.whl 67.0 kB Aug 27, 2026	Python 3	none	any	Details

Total release size: 147.6 kB

Release files / agent2-0.1.1.tar.gz

Download URL	agent2-0.1.1.tar.gz
Size	80.6 kB
Tags	Source
SHA-256 checksum How to use checksums	`6e49f8b2213d6310ce8c2fc1d72606465ab4a052e5abf39ec9469742dfdd82bb`
BLAKE2b-256 checksum How to use checksums	`54252b1d9d7c37af8b7d4b0ccd6998297b57571875eefcdcf7dd0575fb62f77d`
Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.11.14 {"installer":{"name":"uv","version":"0.11.14","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"macOS","version":null,"id":null,"libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`

Release files / agent2-0.1.1-py3-none-any.whl

Download URL	agent2-0.1.1-py3-none-any.whl
Size	67.0 kB
Tags	Python 3
SHA-256 checksum How to use checksums	`775abf8d3fd74eba5aca04430b857c0792fc06679f7c3b60129f5a000ba33563`
BLAKE2b-256 checksum How to use checksums	`51c36d71c7ad1b744dc62cf9c153f7c3d4edc8e9afaa1a5be60a6f7206f17a30`
Upload date	Aug 27, 2026
Uploaded using Trusted Publishing? What is trusted publishing?	No
Uploaded via	`uv/0.11.14 {"installer":{"name":"uv","version":"0.11.14","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"macOS","version":null,"id":null,"libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":null}`