Overview

Rolling Reach Analysis measures audience saturation across your ad platforms — answering "of everyone I reached this month, what share had I never reached before?" It detects fatigue, estimates saturation timelines and builds cross-platform reach reports.

What it does

• New vs returning reach — the share you'd never reached before.

• Saturation detection — when an audience is tapping out.

• Fatigue signals — before performance craters.

• Timeline estimates — how long until saturation.

• Cross-platform view — reach across channels together.
  
  

How to use it

1. Connect your ad platforms.

2. Ask for a rolling reach analysis.

3. Shadow computes new-vs-returning reach and saturation.

4. Get the report — fatigue and saturation timelines.

Run it in-app or from Claude / ChatGPT via the Shadow MCP.

What it needs

Connected ad platforms with reach data.

What you get

A reach report: new-vs-returning share, saturation timelines, fatigue flags and a cross-platform view.

Not the right skill when…

• You want a full Meta audit → use Meta Ads Analyzer, instead

• You want creative fatigue by asset → use Creative Performance, instead

• You want a period recap → use Performance Report, instead