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transceiver-db/sync/history/2026-05-09-atgbics-parser-truth-hardening.md
Rene Fichtmueller 91a1c2282a fix: harden atgbics evidence parsing
2026-05-09 17:30:08 +02:00

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ATGBICS Parser Truth Hardening - 2026-05-09

Context

ATGBICS still has the largest near-complete detail backlog. The parser must be strict because broad Shopify refreshes can otherwise promote rows based on inferred defaults rather than evidence.

Root Cause

  • Unknown fiber type defaulted to SMF
  • Variable cable/range text could be interpreted as a fixed reach
  • Automatic detail verification should require positive source or protocol evidence

Code Hardened

  • packages/scraper/src/scrapers/atgbics.ts
    • refuses variable reach ranges such as 1 - 30 m
    • only returns SMF from explicit SMF/single-mode or protocol evidence such as LR/ER/ZR/BiDi/CWDM/DWDM/DR/FR/PSM
    • returns empty fiber type when evidence is missing instead of assuming SMF

Verification

  • npm run build -w packages/scraper passed locally

Deployment

  • Source file synced to /opt/tip
  • pnpm -C packages/scraper build passed on Erik after SSH recovered

Truth Policy

Future ATGBICS runs should not promote rows to detail-verified from default fiber assumptions. Remaining ATGBICS rows need targeted optical/coherent parsing or source-specific evidence.