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Build a Custom SSL Certificate Monitor with Azure SRE Agent: From Python Tool to Production Skill

dbandaru's avatar
dbandaru
Icon for Microsoft rankMicrosoft
Feb 19, 2026

Learn how to build a custom SSL certificate monitoring tool for Azure SRE Agent using Python tools and skills. This tutorial walks through creating a CheckSSLCertificateExpiry Python tool, composing it into a reusable skill, and deploying it as a dedicated SSLCertificateMonitor agent — all through the Azure SRE Agent portal.

  TL;DR Expired SSL certificates cause outages that are 100% preventable. In this post, you’ll learn how to create a custom Python tool in Azure SRE Agent that checks SSL certificate expiry acros...
Updated Feb 19, 2026
Version 1.0
azure sre agent
MatthewMcDonald_ews's avatar
MatthewMcDonald_ews
Brass Contributor
Feb 27, 2026

This is great, but how to handle certificates that are not simply presented via a web site?  We have certs baked into various application certificate stores for apps that are not web accessible.