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Record dedupe engine

Duplicates found, merged with rules, and prevented from coming back.

By
Caleb and Ryan, the founders
Updated
September 2, 2026
Version
0.1, in the library
  • n8n
  • Make

The dedupe discipline from our lead-engine work as its own system: match rules that go beyond exact email, merge behavior that never destroys data, a human gate for the uncertain pairs, and a front door that checks new records before they enter. Cleanup once, then prevention forever.

Built, documented, running.

Part of the working library we deploy from on every engagement.

Bring this into a project

Runs on

  • n8n
  • Make

2 requirements, below.

  • Complete and documented: the same files we run ourselves.
  • Deployed and tuned to your stack as part of an engagement.

The file

Draft excerpt
# Match tiers certain: exact email, or exact phone + name -> auto-mergeprobable: fuzzy name + same company -> human gatemerge law: union the data; newest wins per field; keep historyfront door: every new record checks in before it enters

What is inside

3 items. Includes deployment guide.

  • flow.jsonThe sweep, the gate, and the front-door check
  • match-rules.mdWhat counts as the same record, tiered
  • guide.mdThe first sweep, run in report-only mode

Who it is for

  • Every list upload seeds a new crop of duplicates.
  • Merging by hand destroys data often enough that nobody merges.
  • You have paid per-record fees for records you already had.

Requirements

  • The system holding the records
  • A merge policy (the template gives you a starting one)

Where this sits

  1. This system

    Record dedupe engine

    In the library, running.

  2. In your stack

    Deployed on an engagement

    The audit finds which system earns its place first; we install and tune it around how you work.

Changelog

  1. September 2, 2026In the library. Version 0.1 runs in our own operation.

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