Does it support both Python and TypeScript?

Yes, it provides instructions and code examples for both Python (3.9+) and Node.js (18+) environments.

LCEL stands for LangChain Expression Language, a declarative way to compose chains. This skill includes examples of LCEL patterns using the pipe operator.

Is this skill suitable for beginners?

Absolutely. It is designed specifically as a 'Hello World' entry point for developers new to the LangChain ecosystem.

What does this skill actually do?

It generates minimal, working boilerplate code for LangChain in Python or TypeScript, helping you verify your setup and understand basic chain syntax.

Do I need an API key to use the generated code?

Yes, you will need valid credentials from an LLM provider like OpenAI or Anthropic to execute the code successfully.

LangChain Quick Start

Name: LangChain Quick Start
Author: jeremylongshore

byjeremylongshore

•

983

•

数据科学与机器学习

Generates minimal, production-ready LangChain boilerplate for Python and TypeScript to jumpstart AI-powered application development.

This skill provides a foundational starting point for building LLM-integrated applications using LangChain. It automates the creation of starter examples, demonstrating core concepts like ChatPromptTemplates, LangChain Expression Language (LCEL), and output parsers across both Python and Node.js environments. It is an essential tool for developers who need to verify their environment setup, test API connectivity, or understand the basic syntax of chains and prompts before diving into more complex agentic workflows.

主要功能

01Provides built-in error handling for API and connectivity issues

02Implements LangChain Expression Language (LCEL) patterns

03983 GitHub stars

04Generates clean Python and TypeScript boilerplate

05Includes memory-enabled chain examples

06Configures basic ChatPromptTemplates and OutputParsers

使用场景

01Initial environment and API credential verification

02Rapid prototyping of basic LLM-powered chat interfaces

03Learning core LangChain abstractions through interactive code generation

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jeremylongshore/claude-code-plugins-plus-skills langchain-hello-world

For use in Claude.ai and ChatGPT

Download Skill