You are helping me build the following AI agent workflow.

## Goal
Import CSV Contacts to Notion Database: Pulls a contacts CSV from Google Drive and maps the data into your Notion database.

## Specification
- What it does: Import your contacts from Google Drive directly into Notion by mapping names, emails, phones, and companies to your database instantly. This workflow pulls the CSV file you select and populates your records without manual entry.
- Trigger: Run manually (Manual · on demand)
- Autonomy: Fully hands-off
- Expected setup effort: about an afternoon
- Tools/services involved:
  - Google Drive: Source CSV file storage
  - Notion: Destination database for contacts
  - Code: Data transformation and mapping

## Known pitfalls, handle each one explicitly in your implementation
1. CSV files often contain hidden whitespace or special characters, so trim all string values before sending them to the database.
2. Email validation is critical because Notion will reject invalid email formats, so add a regex check to filter out bad addresses.
3. The Google Drive trigger may fire on file edits rather than just new uploads, so configure it to only watch for newly created files.

## Reference implementation
https://n8n.io/workflows/5612 (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/import-csv-contacts-to-notion-database/ via usecasesforagents.com