Fail-Safe Lead Processing Engine — Node.js

Internal reference implementation — synthetic data

Synthetic reference implementation for reliable inbound lead processing. The engine covers deterministic normalization, required-field validation, event idempotency, identity deduplication, non-destructive record merging, draft acknowledgements, manual-review alerts, audit entries and injected pre-commit failure handling.

Failure, repair and verification The first regression run exposed an unsafe assumption around local versus international phone normalization. That assumption was removed, a negative regression case was added, and the revised suite then passed 9/9 tests.

Role: Automation & Reliability Developer. Scope: synthetic reference implementation with no external sends, customer data, client deployment or ROI claim.