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Dev.to
Dev.to
5/11/2026
Building a Med-Tech Powerhouse: Creating an Autonomous Health Agent with LangGraph and Playwright

Building a Med-Tech Powerhouse: Creating an Autonomous Health Agent with LangGraph and Playwright

Short summary

Build an autonomous health agent using LangGraph, OpenAI GPT-4o, and Playwright that analyzes lab reports for abnormalities and automatically searches for and books specialist appointments. Includes practical state machine architecture, tool calling patterns, and FastAPI deployment with production-grade patterns for error handling, audit logging, and human-in-the-loop verification checkpoints.

  • Autonomous health agent detects liver function test abnormalities using LangGraph and GPT-4o
  • Automatically searches for and books specialist appointments via Playwright browser automation
  • Includes production patterns: error handling, human-in-the-loop checkpoints, audit logging

Generated with AI, which can make mistakes.

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