SunitechAI

Build Your Own AI Startup Advisor: From LangChain to LangGraph

OVERVIEW

By the end of this workshop, participants will:

  • Build a multi-agent system from scratch using LangChain
  • Understand how responsibilities are divided between the LLM and surrounding code
  • Use agentic search for structured knowledge retrieval
  • Implement and extend the system using LangGraph for control flow and state management
  • Add persistence to handle session context, reloads, and threading
  • Integrate human-in-the-loop decision points

Why Start with LangGraph?

LangGraph is an open-source framework designed by Langchain to build stateful, multi- actor applications using LLMs. Inspired by the long history of representing data processing pipelines as directed acyclic graphs (DAGs), LangGraph treats workflows as graphs where each node represents a specific task or function.

This graph-based approach allows for fine-grained control over the flow and state of applications, making it particularly suitable for complex workflows that require advanced memory features, error recovery, and human-in-the-loop interactions. LangGraph integrates seamlessly with LangChain, providing access to various tools and models and supporting various multi-agent interaction patterns.

AGENDA

10:00 AM – Introduction & Agenda Overview

  • Overview of multi-agent systems and real-world use cases
  • Introduction to LangChain and LangGraph
  • Workshop objectives and output expectations

10:15 AM – Environment Setup

  • Setting up Google Colab or VS Code
  • Installing dependencies (langchain, langgraph, openrouter, serpapi, etc.)
  • Securing API keys using .env files

10:30 AM – Part 1: Building an Agent from Scratch

  • Define use case: Startup Advisor Bot- Identify subtasks: idea generation, competitor analysis, GTM planning- Build prompts and simple function wrappers
  • Discussion: Division of labor between LLM and code logic

11:15 AM – Implementing Agentic Search

  • Use SerpAPI or DuckDuckGo search tool
  • Structure output in a predictable format (e.g., tables of competitors)
  • Emphasize structured data retrieval vs traditional web search

11:30 AM – Break

45-minute lunch or refreshment break

12:15 PM – Part 2: Rebuilding the System with LangGraph

  • Brief overview of LangGraph (nodes, edges, states) - Define graph flow: start → idea → research → gtm → end
  • Add optional conditional path (e.g. pitch deck agent)
  • Visualize and execute graph

01:00 PM – Persistence and Session Management

  • Use a simple in-memory or JSON store to retain state
  • Implement load/save conversation features
  • Session switching, continuation, and threading

1:30 PM – Human-in-the-Loop Integration

  • Adding manual approval steps (e.g., "Would you like to refine this idea?")
  • Basic CLI prompts or Colab widgets for interaction
  • Integration points for feedback loops

1:50 PM – Final Testing and Demonstration

  • Run the end-to-end Startup Advisor Bot
  • Try diverse domains (e.g., climate, SaaS, retail)
  • Highlight how modular agents communicate and share state

2:10 PM – Wrap-Up and Next Steps

  • Summary of key concepts and capabilities
  • Share complete project code, diagrams, and documentation
  • Discuss advanced extensions: UI deployment, multi-user systems, evaluation methods

2:30 PM – Networking Over Tea and Certificate Distribution

Wrap up with refreshments, connect with peers and mentors and receive your certificate of participation.

Instructors

Shubham Sharma

Founder & CEO, SunitechAI

Nihal Kashinath

Founder & CEO, Deep Tech Stars

Shubham has 9+ years of experience in Data Science and is currently building SunitechAI, which is an AI-powered upskilling platform. He offers consulting to companies on a variety of Data Science problems and has developed internal tools for Anomaly Detection & Classification for a variety of datasets in AWS for Quickbase, Boston, USA. He mentors and advises working professionals on the latest data science tools and technologies, moderates live sessions from MIT Professors (Cambridge, MA, USA), and provides advice on business problems as a Guest Mentor. He has done Masters in Data Science from SUNY Buffalo, New York, USA, holds a B.Tech in Petroleum Engineering from IIT(ISM) Dhanbad and has worked in the Data Science team at Baker Hughes (a global oil and gas service company).

Over the last 10 years, Nihal has evangelised AI for organisations like Google, Microsoft, Nvidia, neo4j, etc and helped drive deep tech adoption in organisations like GroupM, Red Cross, and multiple startups. He has also helped AI developers build critical AI skills and find meaningful career opportunities in top AI companies and startups. Nihal has a BE in Computer Science from RVCE and an MBA in Marketing from ISB.

Post-Workshop Resources Provided

Level up your career with a hands-on LangChain workshop and build your own multi-agent system. Limited seats available!