You are helping me build the following AI agent workflow.

## Goal
Website Uptime Monitor And Alert System: Periodically checks website uptime via UptimeRobot and PageSpeed Insights, logs results to Sheets.

## Specification
- What it does: You get instant alerts when your website goes down or slows down, so you can fix issues immediately. The system checks uptime and speed on a schedule, logs results to Google Sheets, and sends refined notifications via Gmail, Telegram, and WhatsApp only when problems are detected.
- Trigger: On a schedule (Scheduled · minute-based interval)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - UptimeRobot: Fetch monitor status data
  - Google Sheets: Log monitor details and history
  - Anthropic Chat Model: Rewrite alert text to be friendlier
  - Gmail: Send email notifications
  - Telegram: Send chat notifications

## Known pitfalls, handle each one explicitly in your implementation
No documented pitfalls for this recipe. Apply your own review before going live.

## Reference implementation
https://n8n.io/workflows/15925 (workflow template)
Fetch and inspect this before building. If it matches my stack, adapt it;
if not, rebuild the pattern with my tools.

## Process requirements
1. Before building: ask me which of the listed tools I actually use and
   what my platform is (n8n / Make / code / other). Do not assume.
2. Adapt the pattern to my answers; do not force the reference stack.
3. Address every pitfall above; tell me how you handled each.
4. Provide a test plan I can run before letting this touch real data.
5. Ask before any step that sends messages, modifies data, or spends money.

Source: https://usecasesforagents.com/use-case/website-uptime-monitor-and-alert-system/ via usecasesforagents.com