Use a Stable Prompt Set as the Weekly Baseline
Start each review from a fixed prompt inventory grouped by intent and business impact. Keep the list stable for trend consistency and only introduce new prompts deliberately. This prevents noisy comparisons and makes week-over-week changes trustworthy.
Baseline guardrails
- Add new prompts only when they represent new customer intent.
- Retire prompts only after two full review cycles.
- Keep segment tags consistent (brand, comparison, category, transaction).

