canary-watch

Detect HTTP status codes, console errors, and performance metrics for a URL against a baseline.

1|Updated Apr 6, 2026
One-click install
npx skills add https://github.com/zero3041/PREP --skill canary-watch-zero3041
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: canary-watch
Source: https://github.com/zero3041/PREP/tree/main/.claude/skills/skills/canary-watch
Command: npx skills add https://github.com/zero3041/PREP --skill canary-watch-zero3041

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This skill addresses the need to quickly detect issues after deploying a website, merging changes, or upgrading dependencies by providing a post-deployment monitoring system.

Core Features & Use Cases

  • Post-Deployment Monitoring: Monitors a URL for common issues after deploying code.
  • Regression Detection: Alerts if new errors or performance degradation is detected.
  • Use Case: Use the Canary Watch skill after a new deployment to verify the application's functionality.

Quick Start

Monitor the deployment at https://myapp.com using Canary Watch.

Frequently Asked Questions about canary-watch

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

FAQPage Schema
How do I monitor web regressions after a deployment?

Post-deployment monitoring checks a URL for HTTP status codes, console errors, network failures, and content changes by comparing current metrics against a baseline. Canary Watch provides quick checks or sustained monitoring to catch these regressions after deploying code.

What is post-deployment monitoring and how does it detect regressions?

Post-deployment monitoring tracks a URL to detect regressions like new console errors or performance degradation. Canary Watch works by comparing current HTTP status codes, network failures, and performance metrics against a pre-established baseline to alert you of issues.

Can I check for HTTP status codes and console errors after a website update?

Yes, you can check for HTTP status codes and console errors after a website update. Canary Watch specifically detects these network failures and content changes, providing both quick verification checks and sustained monitoring over a period of time.

Does web regression detection work without additional dependencies?

Yes, web regression detection works without additional dependencies. Canary Watch operates as a standalone script component, requiring no external dependencies to monitor your application's URLs for performance degradation and network failures.

What is the best way to automate post-deployment checks for web applications?

The best way to automate post-deployment checks is using a script that compares live metrics to a baseline. Canary Watch automates this by detecting HTTP status codes, console errors, and content changes for a URL, providing sustained monitoring after updates.

Why does my web application need sustained monitoring after merging changes?

Your web application needs sustained monitoring after merging changes because issues like network failures and performance degradation may not appear immediately. Canary Watch provides ongoing URL monitoring to detect these delayed post-deployment regressions.