# TIP Hot Topics Quality Filter

Date: 2026-05-10 UTC
Owner: Codex

## Summary

The Blog Engine Hot Topics endpoint was surfacing repeated and irrelevant topics, including Privacy Shield duplicates and operational amplifier content.

## Change

Updated `packages/api/src/routes/hot-topics.ts`:

- filters privacy/legal/compliance artifacts:
  - Privacy Shield
  - personal data
  - data transfer framework
  - GDPR
  - cookies/privacy-policy topics
- filters electronics-only artifacts:
  - operational amplifier
  - OAmp
- requires direct optical/networking signals for market-intelligence rows:
  - transceiver
  - optic / optical
  - photonics
  - fiber/fibre
  - 400G / 800G / 1.6T
  - QSFP / OSFP / SFP
  - coherent / ZR
  - CPO / LPO
  - silicon photonics
  - data center / AI fabric / Ethernet / DCI
- deduplicates topics by normalized title before scoring and selection.

## Deployment

- Deployed to Erik.
- API build passed.
- Restarted `tip-api`.

## Verification

- `/api/hot-topics?limit=10` no longer returns Privacy Shield duplicates or OAmp topics.
- `/api/hot-topics?limit=10&shuffle=alt` produces a different ranking while preserving source quality.

## Training Pool

Added `tip-20260510-hot-topics-quality-filter-001` to `training-data/tip-llm-capabilities-v1.jsonl`.
