canary

Monitor live URLs for anomalies after deployment with baseline comparisons.

Updated Mar 28, 2026
One-click install
npx skills add https://github.com/mattothomas/sp26_hackpsu --skill canary-mattothomas
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: canary
Source: https://github.com/mattothomas/sp26_hackpsu/tree/main/.claude/skills/gstack/canary
Command: npx skills add https://github.com/mattothomas/sp26_hackpsu --skill canary-mattothomas

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Post-deploy production monitoring solves the problem of catching issues that slip through CI by watching a live URL for anomalies. It operates across scenarios like quick verification after deploy, long-running monitoring with a baseline comparison, and page-level health checks using the browse daemon. It satisfies requirements for baseline handling, page selection, and timed monitoring windows.

Core Features & Use Cases

  • Post-deploy monitoring with the browse daemon to watch live apps.
  • Periodic screenshots, baseline comparisons, and anomaly alerts.
  • Baseline capture, page discovery, and targeted monitoring after deployment.

Quick Start

Run /canary <url> after deployment to monitor the app for 10 minutes and surface issues.

Frequently Asked Questions about canary

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I monitor a production URL for anomalies after a deployment?▼

To monitor a production URL for anomalies after a deployment, run a post-deploy monitoring command against the live app to watch the URL and surface issues that slipped through CI.

What is post-deploy production monitoring and how does it catch issues that CI misses?▼

Post-deploy production monitoring catches issues that CI misses by watching a live URL for anomalies, taking periodic screenshots, and comparing against a captured baseline to alert on regressions.

Can I do baseline comparisons during long-running production monitoring?▼

Yes, you can perform baseline comparisons during long-running production monitoring by capturing an initial baseline and comparing subsequent periodic screenshots to detect visual or page-level anomalies.

How do I run a quick health check on a live app after deploying?▼

You can run a quick health check on a live app after deploying by executing a monitoring command against the target URL to verify page-level health and surface issues over a timed monitoring window.

Does post-deploy monitoring require the browse daemon for page-level health checks?▼

Yes, post-deploy monitoring uses the browse daemon to perform page-level health checks, discover pages, and watch live apps for anomalies during the specified monitoring window.

What is the best way to set up timed monitoring windows for production alerts?▼

The best way to set up timed monitoring windows for production alerts is to initiate a post-deploy monitoring session that watches the live URL for a set duration, such as a 10-minute timed window, to surface issues.