Logging blood pressure from a screenshot with a personal AI agent

Melvin Vivas · X post · 2026-08-12 · Open on X

Topics: AI Agents, Tool Use & MCP, Portfolio Projects · Level: beginner

Summary

The creator sends a screenshot of his blood pressure monitor to his Hermes AI assistant. Hermes reads the three readings and adds them to a CSV he can show his doctor. This is a simple, practical use of vision plus tool use to automate a daily chore.

Key points

• Take a photo or screenshot of the device display and send it to the agent.
• The agent reads the 3 data points from the image.
• The agent appends a record to a CSV file.
• The CSV doubles as a health log to share with a doctor.
• This replaces typing the numbers into a notes app by hand every day.

Resources mentioned

• Hermes · tool · hermes-agent.nousresearch.com · free
  The AI agent the creator uses to automate making explainer videos. It is probably Nous Research's Hermes Agent, but the post does not say so.
  Also in: OpenAI DevDay recap: Dots, GPT-6.1 Sol, Codex Cloud, Agents API (Melvin Vivas on X · notes), Coworker: free open-source desktop AI coworker app (Melvin Vivas on X · notes), Agent Monitor: see traces, tokens and costs of your coding agents (Melvin Vivas on X · notes), Coworker: An Open-Source Desktop Agent App for Local and Cloud Models (Melvin Vivas on X · notes) and 13 more

Try this

• Build an agent that reads readings from a photo of a health device and appends them to a CSV log for your doctor.