Claude-skill-registry langchain-agent

AI agent with tools (search, calculator) using LangGraph and AI SDK.

install

source · Clone the upstream repo

git clone https://github.com/majiayu000/claude-skill-registry

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/langchain-agent" ~/.claude/skills/majiayu000-claude-skill-registry-langchain-agent && rm -rf "$T"

manifest: skills/data/langchain-agent/SKILL.md

LangChain Agent

An AI agent with tools (search engine and calculator) powered by LangGraph and the Vercel AI SDK.

Tech Stack

Framework: Next.js
AI: LangChain.js, LangGraph, AI SDK
Database: PostgreSQL
Package Manager: pnpm

Prerequisites

PostgreSQL database
OpenAI API key

Setup

1. Clone the Template

git clone --depth 1 https://github.com/Eng0AI/langchain-agent.git .

If the directory is not empty:

git clone --depth 1 https://github.com/Eng0AI/langchain-agent.git _temp_template
mv _temp_template/* _temp_template/.* . 2>/dev/null || true
rm -rf _temp_template

2. Remove Git History (Optional)

rm -rf .git
git init

3. Install Dependencies

pnpm install

4. Setup Environment Variables

Create

.env

with required variables:

```
POSTGRES_URL
```
- PostgreSQL connection string
```
OPENAI_API_KEY
```
- OpenAI API key for the agent

Build

pnpm build

Development

pnpm dev