Capstone: The Autonomous Research Assistant

Capstone: The Autonomous Research Assistant

Put your skills to the test. In this final module, you will build a production-ready, multi-agent RAG system that researches, summarizes, and cites sources for complex technical questions.

Capstone: The Autonomous Research Assistant

Congratulations on reaching the Capstone! You have learned the theory, the infrastructure, and the ethics. Now, it is time to build.

Your task is to build a Multi-Agent Autonomous Research Assistant. This is not a simple chatbot. It is a system that can take a vague research topic, find the relevant information, and move through a reasoning loop until it produces a high-quality report.


1. The Project Requirements

To pass this course, your application must include:

A. RAG Capability (Module 5)

  • The system must be able to ingest a set of PDF documents (Technical Whitepapers).
  • It must store these in a Vector Database (Chroma or Pinecone).
  • It must perform Semantic Retrieval to find facts.

B. Agentic Reasoning (Module 7)

  • The system must use the ReAct Pattern.
  • If it cannot find the answer in the PDFs, it must have a Search Tool to look on the web.
  • It must have a Self-Correction loop to verify its own facts.

C. Evaluation & Observability (Module 9)

  • You must use LangSmith or similar to trace the agent's research path.
  • You must include a "Final Judge" step to grade the research report.

2. Choosing Your Domain

You can build this assistant for any of the following fields:

  1. Medical Research: Analyzing new papers on a specific disease.
  2. Legal Discovery: Identifying precedents in a set of court case files.
  3. Product Comparison: Researching the top 5 competitors for a new software feature.

3. The Tech Stack (Recommended)

  • Language: Python 3.10+
  • Framework: LangGraph (for the complex reasoning loops).
  • LLM: Claude 3.5 Sonnet (for reasoning) and GPT-4o-mini (for summarization).
  • Vector DB: ChromaDB (Local-first).

4. The Final Output

Your Assistant should produce a Markdown report with the following structure:

  • Executive Summary.
  • Key Findings (Each must have a citation to a PDF or a URL).
  • Methodology (A brief description of how the agent searched).
  • Confidence Score (How sure is the agent of its findings?).

Summary of the Challenge

Over the next three lessons, we will guide you through:

  • Lesson 2: Designing the Graph (Architecture).
  • Lesson 3: Writing the Code (Implementation).
  • Lesson 4: Deploying and Evaluating (Production).

This is your moment to prove you are an LLM Engineer. Don't just follow the tutorials—innovate. If you find a better way to chunk the data or a cleverer way to prompt the judge, use it!


Exercise: The Project Vision

  1. Which domain have you chosen for your Capstone?
  2. List the 3 "Tools" your agent will need to be successful in this domain. (e.g., Google Search, PDF Reader, Calculator).

Tip: Choose a domain you are passionate about. The best AI systems are built by engineers who understand the data they are working with!

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