incrementality-test-designer

incrementality-test-designer is a command for coding agents from Ad-Superpowers/ad-superpowers-plugin. It costs 56 tokens per session (1,921 once invoked), scanned A, original, MIT.

A planning tool for incrementality tests, which measure the results advertising creates beyond what would have happened without it.

In plain words
What is it for?
Use it to plan geographic tests, holdout or control groups, statistical power, test duration, confidence, and cost-benefit analysis.
Why use it?
It helps separate genuine advertising impact from conversions that may have occurred anyway, especially when tracking data is incomplete.

Command

Part of the ad-superpowers plugin — 17 skills, 35 commands, 5 agents, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/ad-superpowers/ad-superpowers-plugin/incrementality-test-designer
Clone the repo
git clone --depth 1 https://github.com/Ad-Superpowers/ad-superpowers-plugin

Or install ad-superpowers, the plugin that ships this one along with the rest of its 17 skills, 35 commands, 5 agents, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for incrementality-test-designer

README.md
[![agentmods](https://agentmods.dev/badge/commands/ad-superpowers/ad-superpowers-plugin/incrementality-test-designer.svg)](https://agentmods.dev/commands/ad-superpowers/ad-superpowers-plugin/incrementality-test-designer)
Your own site
<a href="https://agentmods.dev/commands/ad-superpowers/ad-superpowers-plugin/incrementality-test-designer"><img src="https://agentmods.dev/badge/commands/ad-superpowers/ad-superpowers-plugin/incrementality-test-designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,921 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00056 $0.01921
Opus 5 $0.00028 $0.00960
Sonnet 5 $0.00011 $0.00384
Haiku 4.5 $0.00006 $0.00192

Measured 4d ago against content hash fd94d8448cef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

incrementality-test-designer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugin/commands/incrementality-test-designer.md · 159 lines

How it starts

The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Platforms: meta, google_ads, linkedin, tiktok, google_analytics Tier: pro

This command requires the Ad Superpowers MCP connector to access your ad account data. Connect at https://app.adsuperpowers.ai if you haven't already.

Incrementality Test Designer

Design a rigorous incrementality test for your platform. In a privacy-first world (40-60% iOS signal loss, 50-65% modeled conversions), incrementality testing answers the only question that matters: "What revenue did this advertising create that wouldn't have happened anyway?"

OUTPUT FORMAT (CRITICAL - follow this EXACT structure)

TEST RECOMMENDATION

Factor Value
Recommended Test Type [Geo Lift / Conversion Lift / Holdout / Ghost Bids / MMM]
Why This Test [2-3 bullet reasons based on spend, platform, geography]
Estimated Duration [X weeks total incl. baseline + cooldown]
Confidence Level [High / Medium-High / Medium]

Test Type Selection Reference:

Test Type Best For Min Budget Min Duration Confidence
Geo Lift Any channel, any size 5K/mo 4-6 weeks High
Conversion Lift (Meta) Meta only 2K/mo 2-4 weeks Medium-High
Brand Lift (Google) Brand awareness 5K+ 2 weeks High
Holdout Test Retargeting 3K/mo 3-4 weeks Medium
Ghost Bids Display/Video 10K/mo 4 weeks High
Full MMM All channels 100K+/mo 8-12 weeks Highest

GEO SPLIT DESIGN

Factor Test Regions Control Regions
Population [50% of target] [50% of target]
Historical similarity Must match within 15% Baseline
Suggested regions [List 3-5] [List 3-5]

Pre-built geo splits (use if applicable):

Netherlands:

Option Test Control Balance
North/South Noord-Holland, Zuid-Holland, Utrecht Noord-Brabant, Gelderland, Limburg 85%
Randstad/Rest Amsterdam, Rotterdam, Den Haag All other provinces 72%

Read the full file on GitHub · 159 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 159 lines · 56 tokens per session scan A fd94d8448cef

Subscribe to this mod's changes

incrementality-test-designer is a command published in the GitHub repository Ad-Superpowers/ad-superpowers-plugin (5 stars, last pushed 6d ago), licensed MIT. It adds 56 tokens to every session and 1,921 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.