canary-watch
Use this skill to monitor a deployed URL for regressions after deploys, merges, or dependency upgrades.
Best for Release validationWorks with GitHubLow risk
⌘source
- author
@affaan-m- language
- JavaScript
★159kstars
25kforks
Apr 17, 2026
✦overview.md
Key Features
- ·Monitors HTTP status, console errors, and network failures
- ·Tracks performance metrics like LCP, CLS, and INP
- ·Verifies content presence of key page elements
- ·Checks API endpoint health and response times
- ·Supports quick checks, sustained monitoring, and diff comparisons
- ·Configurable alert thresholds for critical and warning conditions
Use Cases
- →Verifying a production or staging deployment didn't introduce regressions
- →Monitoring a system after merging a high-risk pull request
- →Confirming a bug fix resolved the issue in the live environment
- →Continuous oversight during a product launch or feature rollout
- →Checking for issues after upgrading application dependencies
Best for
- ✓Release validation
- ✓CI/CD pipelines
- ✓Production monitoring
Not ideal for
- !Static site analysis
- !Unit testing
- !Code linting
FAQs
name
canary-watch
description
Use this skill to monitor a deployed URL for regressions after deploys, merges, or dependency upgrades.
origin:ECC
Canary Watch — Post-Deploy Monitoring
When to Use
- After deploying to production or staging
- After merging a risky PR
- When you want to verify a fix actually fixed it
- Continuous monitoring during a launch window
- After dependency upgrades
How It Works
Monitors a deployed URL for regressions. Runs in a loop until stopped or until the watch window expires.
What It Watches
1. HTTP Status — is the page returning 200?
2. Console Errors — new errors that weren't there before?
3. Network Failures — failed API calls, 5xx responses?
4. Performance — LCP/CLS/INP regression vs baseline?
5. Content — did key elements disappear? (h1, nav, footer, CTA)
6. API Health — are critical endpoints responding within SLA?
Watch Modes
Quick check (default): single pass, report results
/canary-watch https://myapp.com
Sustained watch: check every N minutes for M hours
/canary-watch https://myapp.com --interval 5m --duration 2h
Diff mode: compare staging vs production
/canary-watch --compare https://staging.myapp.com https://myapp.com
Alert Thresholds
critical: # immediate alert
- HTTP status != 200
$install
1-click copynpx skills add affaan-m/everything-claude-code --skill canary-watchSafety assessment
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