Huntb-385

Published on April 11 2026

| Feature | Description | Benefits | |---------|-------------|----------| | Real‑time user profiling | Streams events (page view, click, purchase) into a feature store; updates a lightweight user vector every 100 ms. | Fresh context for every decision. | | AI‑powered ranking model | A Gradient‑Boosted Decision Tree (GBDT) model, trained on 12 M historic sessions, scores every content variant. | Higher relevance than rule‑based scoring. | | A/B‑tested fallback | If the model confidence < 0.6, the engine falls back to the best‑performing A/B variant. | Guarantees baseline performance. | | REST & GraphQL APIs | /v1/personalize endpoint returns a ranked list; GraphQL field personalizedContent for UI teams. | Easy integration for web, mobile, and email. | | Observability dashboard | Live metrics (latency, hit‑rate, model confidence) + per‑campaign heatmaps. | Immediate insight, quick debugging. | | Extensible plugin system | Plug in custom scoring functions, data enrichers, or third‑party ML models. | Future‑proof for evolving needs. |

| Dimension | Impact | Rationale | |-----------|--------|-----------| | User Experience | High – Users cannot navigate beyond the first page, leading to abandoned searches. | Affects all users who query > 20 results. | | Business Value | Medium–High – Search is a primary conversion driver; broken pagination reduces conversion by an estimated 3‑5 % (based on analytics). | Loss of revenue per month ≈ $X (if data available). | | Technical Debt | Low – The root cause is a single missing null‑check and an out‑of‑range offset guard. | Fix is isolated to SearchController & SearchService. | | Compliance / Security | Medium – Missing auth checks could expose data to unauthenticated users. | Must be addressed before next compliance audit. | | Release Scope | Fits in the upcoming Sprint 23 without jeopardizing other commitments. | No cross‑team blockers identified. | HUNTB-385

| Step | Owner | Description | ETA | |------|-------|-------------|-----| | 1. Root‑Cause Fix | Backend Engineer | Add bounds checking on offset and guard against null result sets. | End of Day 1 (Sprint) | | 2. Front‑End Guard | Front‑End Engineer | Update pagination component to disable “Next” when totalPages is reached and handle empty response gracefully. | Day 2 | | 3. Unit / Integration Tests | QA Lead | Add test cases for:
• Offset out‑of‑range
• Empty result set
• Authorization enforcement | Day 3 | | 4. Performance Validation | Performance Engineer | Re‑run load test with ≥ 100 k records to confirm response times < 500 ms. | Day 4 | | 5. Security Review | Security Analyst | Verify that the endpoint now checks auth tokens and does not expose data. | Day 4 | | 6. Documentation Update | Tech Writer | Add a note in the API spec about pagination limits (maxResultWindow = 10 000). | Day 5 | | 7. Deploy & Monitor | DevOps | Promote to staging → prod with feature flag, monitor error rates for 24 h. | End of Sprint |

If the ticket is a feature request, replace the steps with “design mock‑ups → stakeholder sign‑off → implementation → QA → rollout”. Published on April 11 2026

| Question | Owner | Comments | |----------|-------|----------| | Is there a hard limit on maxResultWindow in the search engine (e.g., Elasticsearch) that we need to respect? | Backend Lead | May require adjusting index settings. | | Do we need to paginate on the client side for offline mode? | Product Owner | Could affect UI design. | | Will the fix impact any existing custom integrations that rely on the current (broken) behavior? | Integration Engineer | Verify with partner team. | | Is there a need for a fallback “Show All” for power users? | UX Designer | Might be a future enhancement. |