You are helping me build the following AI agent workflow.

## Goal
Restaurant Feedback Collection Automation: Adds new customer names and emails to a sheet to automatically send personalized feedback forms and log responses with timestamps.

## Specification
- What it does: You instantly receive personalized feedback forms from new customers as soon as their details are added to your sheet, ensuring you capture every rating and comment with automatic timestamp logging for easy tracking.
- Trigger: Triggered by an event (Event · on new customer entry in Excel Sheet-1)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - Google Sheets: Storing customer database and feedback responses
  - Send Email: Sending personalized feedback forms to customers
  - Code: Processing logic and form validation

## Known pitfalls, handle each one explicitly in your implementation
1. Email providers may flag bulk automated messages as spam so include an unsubscribe link or limit sending frequency.
2. Invalid email addresses will cause the workflow to fail add error handling to skip bad rows gracefully.
3. Google Sheets API quotas can be exceeded during high volume spikes so implement a delay between sends.
4. Timestamps might reflect server time rather than submission time so explicitly capture the client-side timestamp in the form.

## Reference implementation
https://n8n.io/workflows/5848 (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/restaurant-feedback-collection-automation/ via usecasesforagents.com