brainlid

Langchain — Design skill for Claude Code

Design community

Elixir implementation of a LangChain style framework that lets Elixir projects integrate with and leverage LLMs.

How to install Langchain

This entry records only its repository, not the path inside it, so there is no exact command to give. Open brainlid/langchain and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Langchain does

Elixir implementation of a LangChain style framework that lets Elixir projects integrate with and leverage LLMs.

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README

[![Elixir CI](https://github.com/brainlid/langchain/actions/workflows/elixir.yml/badge.svg)](https://github.com/brainlid/langchain/actions/workflows/elixir.yml) [![Module Version](https://img.shields.io/hexpm/v/langchain.svg)](https://hex.pm/packages/langchain) [![Hex Docs](https://img.shields.io/badge/hex-docs-lightgreen.svg)](https://hexdocs.pm/langchain)

![Logo with chat chain links](https://github.com/brainlid/langchain/blob/main/images/elixir-langchain-link-logo_32px.png?raw=true) Elixir LangChain

Elixir LangChain enables Elixir applications to integrate AI services and self-hosted models into an application.

**Supported chat models:**

Anthropic Claude - Claude models including extended thinking support and AWS Bedrock
OpenAI ChatGPT - GPT models via the Chat Completions API
OpenAI Responses API - OpenAI's newer Responses API with WebSocket transport support
xAI Grok - Grok-4, Grok-3-mini, Grok-4 Heavy (multi-agent), and more
Google Gemini - Gemini AI models
Google Vertex AI - Google's enterprise AI offering
DeepSeek - DeepSeek models with prompt caching support
Ollama - Locally hosted open-source models
Mistral - Mistral AI models
Perplexity - Perplexity AI models
orq.ai - orq.ai Deployments API
Bumblebee - Self-hosted models via Nx (Llama, Mistral, Zephyr)
ReqLLM - Multi-provider adapter via the req_llm library (Anthropic, OpenAI, Gemini, Groq, Ollama, AWS Bedrock, etc.)

**LangChain** is short for Language Chain. An LLM, or Large Language Model, is the "Language" part. This library makes it easier for Elixir applications to "chain" or connect different processes, integrations, libraries, services, or functionality together with an LLM.

**LangChain** is a framework for developing applications powered by language models. It enables applications that are: