From ftitos-claude-code
Monitor a deployed URL for regressions after deploys, merges, or dependency upgrades.
npx claudepluginhub nassimbf/ftitos-claude-codeThis skill uses the workspace's default tool permissions.
- After deploying to production or staging
Guides Next.js Cache Components and Partial Prerendering (PPR) with cacheComponents enabled. Implements 'use cache', cacheLife(), cacheTag(), revalidateTag(), static/dynamic optimization, and cache debugging.
Guides building MCP servers enabling LLMs to interact with external services via tools. Covers best practices, TypeScript/Node (MCP SDK), Python (FastMCP).
Share bugs, ideas, or general feedback.
Monitors a deployed URL for regressions. Runs in a loop until stopped or until the watch window expires.
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?
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
critical: # immediate alert
- HTTP status != 200
- Console error count > 5 (new errors only)
- LCP > 4s
- API endpoint returns 5xx
warning: # flag in report
- LCP increased > 500ms from baseline
- CLS > 0.1
- New console warnings
- Response time > 2x baseline
## Canary Report -- myapp.com -- [timestamp]
### Status: HEALTHY
| Check | Result | Baseline | Delta |
|-------|--------|----------|-------|
| HTTP | 200 | 200 | -- |
| Console errors | 0 | 0 | -- |
| LCP | 1.8s | 1.6s | +200ms |
| CLS | 0.01 | 0.01 | -- |
| API /health | 145ms | 120ms | +25ms |
### No regressions detected. Deploy is clean.
Pair with:
/browser-qa for pre-deploy verificationgit push to auto-check after deploys