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3.2 KiB
3.2 KiB
步骤 01:给你的智能体一个工具
简单的工具比你想象的更强大。Read、Write、Bash 就足够了。
前置条件
与步骤 00 相同 - 复制配置文件并添加你的 API 密钥:
cp default_workspace/config.example.yaml default_workspace/config.user.yaml
# 编辑 config.user.yaml 添加你的 API 密钥
这节做什么
让智能体能真正做事——不只是聊天。
关键组件
- Stop Reason:聊天循环根据
stop_reason分支 —"tool_calls"执行工具,"stop"正常结束,"length"响应被截断 - Tools:管理可用工具并执行工具调用
- Tool Calling Loop:智能体调用工具,将结果添加到历史,继续对话
class BaseTool(ABC):
name: str
description: str
parameters: dict[str, Any]
@abstractmethod
async def execute(self, session: "AgentSession", **kwargs: Any) -> str:
pass
def get_tool_schema(self) -> dict[str, Any]:
return {
"type": "function",
"function": {
"name": self.name,
"description": self.description,
"parameters": self.parameters,
},
}
工具集成到聊天循环:
class AgentSession:
async def chat(self, message: str) -> str:
user_msg: Message = {"role": "user", "content": message}
self.state.add_message(user_msg)
tool_schemas = self.tools.get_tool_schemas()
logger = logging.getLogger(__name__)
while True:
messages = self.state.build_messages()
content, tool_calls, stop_reason = await self.agent.llm.chat(messages, tool_schemas)
assistant_msg: Message = {
"role": "assistant",
"content": content,
"tool_calls": [...],
}
self.state.add_message(assistant_msg)
if stop_reason == "tool_calls":
await self._handle_tool_calls(tool_calls)
continue
if stop_reason == "length":
logger.warning(
"LLM response truncated (max_tokens reached), "
"returning partial response"
)
break
return content
设计说明
为什么工具是硬编码的
工具通过 ToolRegistry.with_builtins() 在 Python 中注册,而不是在 AGENT.md frontmatter 中声明。
基于 YAML 的工具配置涉及的设计决策超出了本教程范围。BaseTool 抽象已经让工具在代码层面保持可插拔。
OpenClaw 用插件系统和按智能体配置的 JSON 来处理这件事——但不在本教程范围内。
试一试
cd 01-tools
uv run my-bot chat
# You: Hey Can you read your README.md please?
# pickle: I found and read the README.md file! 🐱
# # Step 01: Tools - Read, Write, Bash is Powerful Enough
# Give the agent the ability to execute tools (read, write, edit, bash) and interact with the filesystem.
# [More lines]
下一步
步骤 02:技能 - 用 SKILL.md 动态加载能力。