canary

Monitor deployed applications for console errors, performance regressions, and page failures.

37|2|Updated Mar 28, 2026
One-click install
npx skills add https://github.com/DariusCorvus/iqualize --skill canary-dariuscorvus
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: canary
Source: https://github.com/DariusCorvus/iqualize/tree/main/.claude/skills/gstack/canary
Command: npx skills add https://github.com/DariusCorvus/iqualize --skill canary-dariuscorvus

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Deployments can silently degrade in production due to environment differences, misconfigurations, or slow network paths. This skill watches the live app after a release, captures screenshots, checks console errors, and compares current behavior against a baseline to catch issues early.

Core Features & Use Cases

  • Post-deploy monitoring of a production URL with the browse daemon.
  • Periodic screenshots, console error checks, and performance observations to detect regressions.
  • Baseline capture and health alerts to guide quick rollback or fixes.

Quick Start

Run the canary skill with a URL after deployment to begin monitoring.

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 errors after a deployment?

You can monitor a production URL post-deployment by taking periodic screenshots, checking console errors, and comparing current behavior against a baseline. This captures regressions early using the browse daemon to assess application health.

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

Post-deploy canary monitoring watches a live application after a release to catch silent degradations caused by environment differences or misconfigurations. You need it to detect performance regressions or page failures before users are widely affected.

Do I need the browse daemon to capture production screenshots and baseline data?

Yes, the browse daemon is required to run post-deploy canary monitoring. It enables the skill to access configured production pages, take periodic screenshots, capture baseline behavior, and log anomaly alerts.

How do I configure canary monitoring duration and specific pages to watch?

You can configure monitoring by using the --duration, --baseline, and --pages options. This specifies how long to watch, sets baseline captures, and targets specific production pages for anomaly detection and reporting.

Why does my deployment silently degrade in production without showing errors?

Deployments can silently degrade due to environment differences, misconfigurations, or slow network paths. Canary monitoring catches these issues by periodically capturing screenshots and comparing current behavior against a baseline to alert on anomalies.