canary

Monitor live applications for console errors and performance regressions after deployment.

1|Updated Apr 12, 2026
One-click install
npx skills add https://github.com/cheng80/rummipoker --skill canary-cheng80
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: canary
Source: https://github.com/cheng80/rummipoker/tree/main/.agents/skills/gstack-canary
Command: npx skills add https://github.com/cheng80/rummipoker --skill canary-cheng80

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Post-deploy canary monitoring watches the live app for console errors, performance regressions, and page failures, using the browse daemon to detect anomalies early.

Core Features & Use Cases

  • Canary monitoring detects runtime errors and performance issues after deploy.
  • Periodic screenshots are compared against pre-deploy baselines to surface regressions.
  • Alerts and summaries help teams verify deployment health in production.

Quick Start

Run the canary skill after deploying to start monitoring production health, capture anomalies, and alert your team.

Frequently Asked Questions about canary

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

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

Post-deploy monitoring watches the live application for console errors, performance regressions, and page failures using the browse daemon. It captures periodic screenshots and compares them against pre-deploy baselines to detect production anomalies early.

What is canary monitoring and how does it verify deployment health?

Canary monitoring is a post-deploy verification process that detects runtime errors and performance issues in a live application. It compares periodic screenshots against pre-deploy baselines to surface regressions and verify deployment health in production.

Can I integrate post-deploy verification into a CI/CD workflow?

Yes, post-deploy verification supports integration into CI/CD workflows. Running the canary process immediately after deployment starts monitoring production health, capturing anomalies, and alerting the team to any regressions.

How do pre-deploy baselines work when detecting page failures?

Pre-deploy baselines work by capturing the application's normal state before a new deployment. After deployment, periodic screenshots are compared against these baselines to automatically surface visual regressions, page failures, and performance issues.

Does canary monitoring detect console errors and performance regressions automatically?

Yes, canary monitoring automatically detects console errors and performance regressions. The browse daemon watches the live application continuously and raises alerts on anomalies by comparing current application behavior to pre-deploy baselines.