materials-informatics-agent 0.1.8

A LangGraph/LLM‐driven EDA → AutoML → report pipeline

MI-Agent

An agentic workflow for materials-informatics (MI) engineers, built with LangGraph and powered by OpenAI models. MI-Agent codifies the end-to-end MI pipeline—data loading, merging, feature selection, EDA, AutoML baselining, hyperparameter tuning, and executive reporting—into reusable nodes orchestrated as a LangGraph. LangSmith integration tracks and visualizes your graph executions. The result? MI workflows that run in seconds instead of hours, boosting your productivity by an order of magnitude.

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🚀 Why MI-Agent?

• Agentic LangGraph design lets you hit “play” on a full MI pipeline
• 10× faster: eliminate boilerplate and manual scripting
• Extensible nodes: swap in your own extractors, metrics, or plots
• LangSmith-backed for graph tracking, versioning, and observability
• Production-ready: versionable, testable, pip-installable

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🛠️ Prerequisites

• Conda (Miniconda or Anaconda)
• Python 3.10
• OpenAI API key
• LangSmith API key

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Installation via pip

1. Create & activate a conda environment

   conda create -n mi_agent python=3.10 -y
   conda activate mi_agent
   

2. Install via pip

   pip install mi_agent
   

3. Configure your API keys for this session

   You’ll need to re-enter these each time you open a new terminal.

   MI-Agent reads only from real environment variables. Set them in your shell before running:

   Windows PowerShell:

   $Env:OPENAI_API_KEY = "sk-…"
   $Env:LANGCHAIN_API_KEY = "lsv2_..."      <---- your LangSmith API key
   

   macOS/Linux (bash, zsh):

   export OPENAI_API_KEY ="sk-…"
   export LANGCHAIN_API_KEY="lsv2_..."      <---- your LangSmith API key
   

4. Prepare your problem file

   MI-Agent requires a .txt file (an example is provided in the sample_problem.txt in the project root) which contains:

   • your problem description

   • relative paths to your CSV(s), including any folder prefix (e.g. data/sample_data.csv)

   Example problem.txt:

   You are tasked with predicting alloy strength from composition data...
   
   - data/sample_data_1.csv: Contains experimental results...
   - data/sample_data_2.csv: Contains formulation recipes...
   

5. Run the agent

   Now, invoke mi_agent … in the same terminal session you entered your API keys:

   mi_agent --problem-file <path/to/problem.txt> --output-dir <path/to/output_dir>
   

   MI-Agent will:

   • Identify & load the CSV(s) listed in the problem file
   • Merge files if needed
   • Select target & features
   • Propose & execute EDA
   • Save all generated code (*.py) for EDA analysis and images (*.png) generated during EDA into <output_dir>
   • Run AutoML baseline + hyperparameter tuning
   • Emit a two-page executive summary
   • Log every step to LangSmith