---
name: kreel-creative-fatigue-check
description: "Detect creative fatigue on active Meta ads."
---

If more than one brand is reachable, call `list_brands` first and pass `brand` on every call.

Check for creative fatigue. Use `get_creatives` with platform='meta', date_range={"days": 30}, filters={"status": "ACTIVE"}. Each creative's `fatigue` block carries window scalars (hook_rate, hold_rate, ctr) and a first-half-vs-second-half `trend` for ctr, hook_rate, and frequency. Flag a creative when its frequency trend is rising or its CTR/hook-rate trend is falling (delta_pct down >20%). Frequency is trend-only — there is no cumulative frequency scalar (ADR-0007).