canary

Capture screenshots, error logs, and page metrics to verify website stability after deployment.

1|Updated Apr 5, 2026
One-click install
npx skills add https://github.com/giljae/gstack-antigravity --skill canary-giljae
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: canary
Source: https://github.com/giljae/gstack-antigravity/tree/main/gstack-origin/canary
Command: npx skills add https://github.com/giljae/gstack-antigravity --skill canary-giljae

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires browse, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill facilitates real-time visual and performance monitoring of web applications after deployment, helping teams quickly identify issues such as errors, performance regressions, or broken links.

Core Features & Use Cases

  • Automated Baseline Capture: Records screenshots, console errors, and page load metrics before deployment.
  • Continuous Post-Deployment Monitoring: Checks specified web pages at regular intervals to detect regressions.
  • Alerts and Reporting: Notifies teams of critical issues like errors and slowdowns, providing evidence through screenshots for prompt investigation.
  • Use Case: After releasing a new website feature, verify that all pages load correctly, no errors occur, and performance remains optimal across different browsers and devices.

Quick Start

Use the canary skill to monitor your website immediately after deployment by specifying the URL and optional parameters such as duration or pages to observe.

Frequently Asked Questions about canary

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

FAQPage Schema
How do I monitor website stability and performance after a deployment?

Post-deployment monitoring captures screenshots, error logs, and page metrics at regular intervals to detect regressions. Automated baseline comparisons verify website stability and performance, alerting teams to issues that affect user experience.

What is visual regression detection for web applications?

Visual regression detection compares webpage states before and after deployment by capturing screenshots. It identifies visual changes and broken elements, using browser automation to navigate and compare page states effectively for error detection.

How do I automate error detection and page load metrics checking?

Automated error detection records console errors and page load metrics after deployment. Browser automation tools navigate specified URLs to capture webpage states, comparing them against baselines to identify performance regressions and broken links.

Does post-deploy monitoring require browser automation tools to capture webpage states?

Yes, post-deploy monitoring requires browser automation tools to navigate, capture, and compare webpage states. These tools enable automated baseline capture of screenshots, console errors, and page load metrics for effective visual regression and error detection.

Can I check specified web pages at regular intervals to detect regressions after releasing a new feature?

Continuous post-deployment monitoring checks specified web pages at regular intervals to detect regressions. After releasing a new website feature, it verifies that all pages load correctly, no errors occur, and performance remains optimal.

What is the best way to verify web application stability after deployment without manual checking?

Automated post-deploy monitoring verifies web application stability by capturing screenshots, error logs, and page metrics. It uses visual regression and error detection methods to identify issues, providing evidence through screenshots for prompt investigation.