The Creative Fatigue & Refresh-Timing Analyzer is a free Claude Skill that fits an exponential decay curve to CTR vs. days-live and projects the specific calendar date a creative will cross a fatigue threshold, instead of a static "-X% drop" rule.
A curve-fit and projection function, not a hosted service or an ad-platform integration. It runs entirely in your own environment against CTR history you supply.
| File | Purpose |
|---|---|
analyzer.js | fitDecayCurve() and projectRefreshDate() — zero dependencies |
test.js | 12-test suite covering curve recovery, flat-creative handling, and date math |
SKILL.md | Full skill definition, loadable in Claude Code/Desktop |
AdCreative.ai and similar tools score creative variants, but this research found nothing that fits a real decay curve and projects a specific refresh-by date the way this does. A flat or improving creative correctly returns no fatigue projection, rather than a false alarm.
Yes. Free to download and run yourself. MV3 charges $175/hr only if you want it wired into your real ad platforms so refresh dates surface automatically.
At least 3 CTR data points over time (days-live and CTR) for a running creative.
The function correctly detects this and returns no fatigue projection rather than a false alarm, since a flat or improving creative has no defined decay rate.
No. The fit runs entirely in your own environment.
Any platform you can pull CTR-by-day history from, including Google Ads, Meta Ads, and LinkedIn Ads.
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