Contact CSV Deduplicator

Uploads a UTF-8 CSV contact list, projects a small field set, removes exact duplicate email values, sorts by last name, and returns at most 250 rows.

Use these exact, case-sensitive headers:

first_name,last_name,email,phone,company

The graph reads the uploaded asset through its temporary Subfork URL with a 20-second timeout and 1 MB response cap. It does not call a third-party provider, send messages, modify contacts, or export to an address book.

Deduplication is exact and keeps the first occurrence. It does not trim fields, lowercase email addresses, validate addresses or phone numbers, or merge partial records. For example, ADA@example.com and ada@example.com remain separate.

Expected outputs are contacts, uploaded filename, fetch status, and a JSON response. Bind contacts to a Table panel. Contact lists contain personal data: use a synthetic or authorized file, review execution retention, and do not publish a graph that contains a real uploaded contact asset.

The structure and node contracts were validated against the production catalog on September 26, 2026. Upload and execution still need a local-development smoke test before this example is described as manually run.