ad-creative-testing SKILL.md skillA

ad-creative-testing from skillmedev/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add skillmedev/skills/ad-creative-testing@git:20261005.bea4ea5

Pins git:20261005.bea4ea5 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
skillmedev/skills
Path
skills/ad-creative-testing/SKILL.md
Versions recorded
3
Latest version
git:20261005.bea4ea5, committed Oct 5, 2026
First version recorded
Jul 5, 2026
Size
5,841 bytes
Repository stars
19
License
MIT

Designs a disciplined ad creative testing system with hooks, isolated variables, and statistical rigor. Use when setting up a testing pipeline or when creative performance is declining.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Ad Creative Testing

Most ad creative testing produces noise, not learning. Discipline means changing one variable at a time, running tests long enough, and acting only on statistically meaningful results.

## Structure Tests Around a Single Variable

Each test must isolate exactly one variable: hook (first 3 seconds of video or headline), visual format (static vs. video vs. carousel), offer framing (discount vs. free trial vs. guarantee), or call to action. Testing multiple variables at once makes the result uninterpretable. Label every creative with the variable it is testing and the hypothesis it is checking before launch.

## Prioritize Hook Testing First

The hook is the highest-leverage variable in most paid channels. For video, the 3-second view rate and thumb-stop ratio reveal hook strength before the full watch occurs. For static and search, the headline carries the same weight. Run hook tests before any other variable - a great offer with a weak hook will never be seen. A hook passes if 3-second view rate exceeds 30% on Meta or thumb-stop exceeds 25%; a headline passes if CTR exceeds channel benchmark.

## Set Sample Sizes Before Running
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add skillmedev/skills/ad-creative-testing@sha256:bf61b5cbfcc66ab7

The line at the top of this page pins the label git:20261005.bea4ea5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_xyntbwwkxmtdgxbf.svg)](https://markdownregistry.com/a/art_xyntbwwkxmtdgxbf)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Jul 5, 2026 and Oct 5, 2026, about one every 46 days.

versioncommittedcommitsizeaudit
git:20261005.bea4ea5 latest2026-10-05 bea4ea5 5,841 BA view · diff
git:20260705.a28c4ce2026-07-05 a28c4ce 5,800 BA view · diff
git:20260705.acb55712026-07-05 acb5571 5,832 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5841 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

skillmedev/skills · 19 stars · license MIT · pushed 2026-10-13 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xyntbwwkxmtdgxbf
GET https://markdownregistry.com/api/v1/resolve?ref=skillmedev/skills/ad-creative-testing
GET https://markdownregistry.com/api/v1/blob/bf61b5cbfcc66ab74ae99466ca77fd908b9bb4426e53e0f6c65902bb1d305058

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from skillmedev/skills

1on1-agenda SKILL.md skill
skillmedev/skills · skills/1on1-agenda/SKILL.md · Structures recurring manager-report 1:1s with a rolling shared agenda that balances check-in, blockers, two-way…
git:20261005.bea4ea5 · audit A · 19 stars
ab-test-analyzer SKILL.md skill
skillmedev/skills · skills/ab-test-analyzer/SKILL.md · Analyzes an A/B experiment to a defensible verdict - sample-size and minimum-detectable-effect math, two-proportion…
git:20261005.bea4ea5 · audit A · 19 stars
abandoned-cart-sequence SKILL.md skill
skillmedev/skills · skills/abandoned-cart-sequence/SKILL.md · Drafts a margin-aware 3-email cart-recovery sequence that reminds, handles objections, then incentivizes only as a last…
git:20261005.bea4ea5 · audit A · 19 stars
academic-essay SKILL.md skill
skillmedev/skills · skills/academic-essay/SKILL.md · Structures and drafts argumentative academic essays - a contestable thesis, claim-evidence-analysis body paragraphs, a…
git:20261005.bea4ea5 · audit A · 19 stars
accessibility-audit SKILL.md skill
skillmedev/skills · skills/accessibility-audit/SKILL.md · Runs a full WCAG 2.2 accessibility audit of an interface - keyboard, screen reader, contrast and zoom, forms, and…
git:20261005.bea4ea5 · audit A · 19 stars
aeo-answer-blockifier SKILL.md skill
skillmedev/skills · skills/aeo-answer-blockifier/SKILL.md · Rewrites a section or page into concise, self-contained answer blocks that AI answer engines and search snippets can…
git:20261005.bea4ea5 · audit A · 19 stars
agency-monthly-report SKILL.md skill
skillmedev/skills · skills/agency-monthly-report/SKILL.md · Build the monthly client report that renews retainers - results-first structure with business outcomes before activity…
git:20260705.a28c4ce · audit A · 19 stars
agency-positioning SKILL.md skill
skillmedev/skills · skills/agency-positioning/SKILL.md · Reposition a generalist agency around a vertical or service specialization, write the "we're the agency that X for Y"…
git:20260705.a28c4ce · audit A · 19 stars
agency-qbr-upsell SKILL.md skill
skillmedev/skills · skills/agency-qbr-upsell/SKILL.md · Run agency quarterly business reviews that expand accounts - the four-part QBR agenda (results retrospective, goal…
git:20260705.a28c4ce · audit A · 19 stars
agent-orchestration SKILL.md skill
skillmedev/skills · skills/agent-orchestration/SKILL.md · Designs reliable multi-agent LLM systems - choosing a topology, writing handoff contracts between agents, deciding what…
git:20261005.bea4ea5 · audit A · 19 stars
alert-tuning SKILL.md skill
skillmedev/skills · skills/alert-tuning/SKILL.md · Reduces alert noise by making alerts actionable, symptom-based, and tied to SLOs. Identifies and kills flappy…
git:20261005.bea4ea5 · audit A · 19 stars
amazon-listing-optimizer SKILL.md skill
skillmedev/skills · skills/amazon-listing-optimizer/SKILL.md · Writes an Amazon product title, five bullets, and backend search terms that obey Amazon's character, byte, and keyword…
git:20261005.bea4ea5 · audit A · 19 stars

Every file in skillmedev/skills

Browse by kind, by grade A, or by owner.