You are helping me build the following AI agent workflow.

## Goal
Monitor Bank Transactions with Multi-Channel Alerts: Every five minutes, the agent checks bank transactions for risk, logs results to Google Sheets.

## Specification
- What it does: You get real-time bank transaction monitoring every five minutes that instantly calculates risk scores and categorizes alerts as critical, high, or medium. The system automatically logs all activity to Google Sheets and sends targeted notifications via email and Slack so your finance team stays informed without manual checks.
- Trigger: On a schedule (Scheduled · every 5 minutes)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - HTTP Request: Fetch real-time bank transaction data
  - Code: Enrich, transform data and calculate risk scores
  - Google Sheets: Log transaction details and summary statistics
  - Send Email: Dispatch priority alerts via Gmail
  - Slack: Send high and medium priority notifications

## Known pitfalls, handle each one explicitly in your implementation
1. Sensitive financial data exposure is a risk so ensure you mask account numbers or transaction IDs before writing them to Google Sheets or sending Slack notifications.
2. Silent failures in the HTTP request node can go unnoticed so configure error handling paths that send an immediate alert to your team when the bank API is unreachable.

## Reference implementation
https://n8n.io/workflows/10110 (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/monitor-bank-transactions-with-multi-channel-alerts/ via usecasesforagents.com