FREE CLAUDE SKILL · TROUBLESHOOTING

Find Out Why Your
ACOS Went Up.

/troubleshoot-rising-acos

ACOS is a ratio, so only two things can move it. This skill computes both before it theorises, names the one that actually moved, and drills to the search term behind it.

Download the skill ↓ Setup guide

v1.0 · Sep 2026 · Free · No email gate · Read-only

/troubleshoot-rising-acos

SETUP · NOTHING TO CONNECT

How To Run The Skill. Three Steps, Under Three Minutes.

STEP 01

Upload the skill file once

Download it above, then drop it into Claude under Customize, then Skills. It becomes /troubleshoot-rising-acos in every chat after that.

Desktop or web: Sidebar → Customize → Skills → Add → Upload a skill

Claude Code: unzip it into ~/.claude/skills/

WHAT TO GIVE IT

Periodstwo, same length, adjacent

Metricsspend, sales, clicks, orders

Graincampaign level or finer

Sourcepaste, attach, or the MCP

STEP 02

Point it at your numbers

Any tool that can compare two periods. Paste the figures, share a report, or let it read live data through the AdLabs MCP if you have it connected.

Before the first run

Two comparable periods of the same length

Campaign-level figures at minimum

Any PPC tool; AdLabs MCP optional

The date the rise started, if you know it

My ACOS jumped from 38% to 46% this month. What happened?

CLAUDE, USING THE SKILL

Ruled out attribution lag and event weeks

Set equal 30-day windows either side

Sorted campaigns by spend, never by ACOS

ΔACOS = ΔCPC ÷ ΔRPC: RPC moved, CPC held

Drilled to the search term behind the CVR drop

Diagnosis: CVR fell on the hero ASIN's exact campaign

STEP 03

Say this

Give it the symptom and the window. It works the order top to bottom and stops when it hits a cause, not a symptom.

Then, in the same chat

›Same question, but only for the Sponsored Products campaigns on the hero ASIN.

›You said CVR fell. Show me the working, and tell me what you ruled out.

Open the full setup guide →

THE OUTPUT

What You Get Back. The Lever to Pull to Lower Your ACOS.

A diagnosis, not a dashboard. The ratio it decomposed, what it ruled out first, the drill trail from campaign to search term, and the actions ranked by the dollars behind them.

/troubleshoot-rising-acos

The ratio it decomposedWhat it ruled out firstThe drill trail to the search termActions ranked by spend touched

Read a sample diagnosis ↗ Synthetic figures. The arithmetic in the sample is real.

Back to all skills

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$1B+annual ad spend managed

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FREE CLAUDE SKILL · RISING ACOS DIAGNOSTIC

Download It Once.
Run It On Any Account.

Free, no email gate, read-only. It runs on live data through the AdLabs MCP, so start the 30-day Pro trial and point it at your account.

Download the skill ↓ Start Free Trial

Find Out Why Your
ACOS Went Up.