Python · By langchain-ai

Add, move, rename, or delete a page on the LangChain docs site.

langchain-ai/docs

INVOKE THIS SKILL when implementing human-in-the-loop patterns, pausing for approval, or handling errors in LangGraph.

langchain-ai/langchain-skills

Routes LangGraph agents with typed decision models that return probabilities, and finds LLM calls that only exist to produce a routing decision.

langchain-ai/langchain-skills

INVOKE THIS SKILL when your LangGraph needs to persist state, remember conversations, travel through history, or configure subgraph checkpointer scoping.

langchain-ai/langchain-skills

Explains how to build agents with the Deep Agents framework: create_deep_agent, the built-in middleware, the harness, SKILL.md format and configuration options.

langchain-ai/langchain-skills

INVOKE THIS SKILL when using subagents, task planning, or human approval in Deep Agents.

langchain-ai/langchain-skills

INVOKE THIS SKILL when setting up a new project or when asked about package versions, installation, or dependency management for LangChain, LangGraph, LangSmith, or Deep Agents.

langchain-ai/langchain-skills

Shows how to build LangChain agents with create_agent, define tools, add a checkpointer and use middleware for human approval and error handling, in Python and TypeScript.

langchain-ai/langchain-skills

INVOKE THIS SKILL when you need human-in-the-loop approval, custom middleware, or structured output.

langchain-ai/langchain-skills

INVOKE THIS SKILL when building ANY retrieval-augmented generation (RAG) system.

langchain-ai/langchain-skills

INVOKE THIS SKILL when using the langgraph CLI to scaffold, develop, build, or deploy LangGraph applications.

langchain-ai/langchain-skills

INVOKE THIS SKILL when your Deep Agent needs memory, persistence, or filesystem access.

langchain-ai/langchain-skills

Scaffold a minimal local Deep Agent in Python by following the official quickstart, using provider-native web search instead of Tavily.

langchain-ai/langchain-skills

Scaffold a minimal local LangGraph agent in Python by following the official quickstart.

langchain-ai/langchain-skills

Scaffold a minimal local LangChain agent in Python by following the official quickstart.

langchain-ai/langchain-skills

Fetches and references LangGraph Python documentation to build stateful agents, create multi-agent workflows, and implement human-in-the-loop patterns.

langchain-ai/docs