其他

langchain-fundamentals

Name: langchain-fundamentals
Author: langchain-ai

langchain-ai/la…n-skills

Create LangChain agents with create_agent, define tools, and use middleware for human-in-the-loop and error handling.

安装命令

$ npx skills add https://github.com/langchain-ai/langchain-skills --skill langchain-fundamentals

SKILL.md

<create_agent>

create_agent() is the recommended way to build agents. It handles the agent loop, tool execution, and state management.

Parameter	Purpose	Example
`model`	LLM to use	`"anthropic:claude-sonnet-4-5"` or model instance
`tools`	List of tools	`[search, calculator]`
`system_prompt` / `systemPrompt`	Agent instructions	`"You are a helpful assistant"`
`checkpointer`	State persistence	`MemorySaver()`
`middleware`	Processing hooks	`[HumanInTheLoopMiddleware]` (Python) / `[humanInTheLoopMiddleware({...})]` (TypeScript)
</create_agent>

<create_agent>

create_agent() is the recommended way to build agents. It handles the agent loop, tool execution, and state management.

Parameter	Purpose	Example
`model`	LLM to use	`"anthropic:claude-sonnet-4-5"` or model instance
`tools`	List of tools	`[search, calculator]`
`system_prompt` / `systemPrompt`	Agent instructions	`"You are a helpful assistant"`
`checkpointer`	State persistence	`MemorySaver()`
`middleware`	Processing hooks	`[HumanInTheLoopMiddleware]` (Python) / `[humanInTheLoopMiddleware({...})]` (TypeScript)
</create_agent>