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langchain-agent

Build an AI agent with web search and calculator tools using LangChain.js and LangGraph.

15|5|Updated Dec 5, 2025
Search Tags:#langchain#ai#agent#nextjs#langgraph#tools
One-click install
npx skills add https://github.com/rebyteai-template/rebyte-skills --skill langchain-agent-rebyteai-template
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: langchain-agent
Source: https://github.com/rebyteai-template/rebyte-skills/tree/main/langchain-agent
Command: npx skills add https://github.com/rebyteai-template/rebyte-skills --skill langchain-agent-rebyteai-template

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a pre-configured AI agent capable of performing tasks using external tools like search and a calculator, powered by LangGraph and the Vercel AI SDK.

Core Features & Use Cases

  • AI Agent Functionality: Leverages LangChain.js and LangGraph for agentic workflows.
  • Tool Integration: Includes a search engine and a calculator for enhanced capabilities.
  • Use Case: An AI assistant that can answer questions by first searching the web for relevant information and then performing calculations on the retrieved data.

Quick Start

Use the langchain-agent skill to set up your AI agent with search and calculator tools.

Frequently Asked Questions about langchain-agent

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build an AI agent with web search and calculator tools in Next.js?▼

To build an AI agent with web search and calculator tools in Next.js, you can use this Skill to configure agentic workflows via LangChain.js and LangGraph, integrating the Vercel AI SDK for task execution.

Does LangGraph work with the Vercel AI SDK for agent development?▼

Yes, LangGraph works with the Vercel AI SDK. This Skill leverages both frameworks alongside LangChain.js to execute AI-driven tasks and manage agentic workflows within a Next.js application environment.

What do I need to set up an AI agent using LangChain.js and PostgreSQL?▼

To set up an AI agent using LangChain.js and PostgreSQL, you need a Next.js environment, an OpenAI API integration, and this Skill to connect the agent's search and calculation tools to your database.

Can I use LangChain to add a search engine and calculator to my AI assistant?▼

Yes, you can use LangChain to add a search engine and calculator to your AI assistant. This Skill provides pre-configured tool integration, allowing the agent to retrieve web data and perform calculations.

What is the best way to execute AI-driven tasks in Next.js using LangGraph?▼

The best way to execute AI-driven tasks in Next.js using LangGraph is by integrating LangChain.js and the AI SDK. This Skill provides a pre-configured agent setup for seamless tool execution and workflow management.

Why use LangGraph for agentic workflows instead of standard LangChain.js?▼

LangGraph provides structured state management for complex agentic workflows, complementing LangChain.js tool integration. This Skill uses both to enable multi-step AI-driven task execution like searching and calculating.

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