canary

Monitor a live URL for console errors, performance regressions, and page failures after deploy.

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

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Canary-based post-deploy monitoring catches production issues that slip past CI, including console errors, performance regressions, and page failures, so you can triage and fix before users notice.

Core Features & Use Cases

  • Baseline capture before and after deploy to detect drift
  • Continuous page health checks with alerting on regressions
  • Page-level detail including console errors, load times, and performance signals

Quick Start

Run /canary <url> to begin monitoring production after deployment.

Frequently Asked Questions about canary

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

FAQPage Schema
How do I monitor a live URL for production issues after deployment?

Monitor a live URL for production issues by running a post-deploy check that observes page health for 10 minutes to detect console errors, performance regressions, and page failures before users notice.

What is canary-based post-deploy monitoring and when do I need it?

Canary-based post-deploy monitoring catches production issues that slip past CI by capturing baseline metrics before and after deploy to detect drift, requiring continuous health checks when deploying new code.

How do I set up continuous page health checks with alerting on regressions?

Set up continuous page health checks with alerting by running a post-deploy monitor that captures baseline metrics, then continuously evaluates live URLs to trigger alerts when console errors or performance regressions occur.

Does post-deploy monitoring work with multiple pages and baseline capture?

Yes, post-deploy monitoring operates across optional pages and baseline capture, allowing you to track page-level detail including console errors, load times, and performance signals for multiple URLs simultaneously.

What is the best way to detect production page failures before users notice?

The best way to detect production page failures early is canary monitoring, which tracks a live URL for 10 minutes after deploy to generate structured health summaries and alerts for immediate triage.

Why does my production deployment show performance regressions after passing CI?

Production deployments show performance regressions after passing CI because canary monitoring captures real-time page load times and performance signals under live conditions that baseline CI environments cannot replicate.