Open-source marketing skills for AI agents
The math layer for marketing agents.
81 skills for Claude Code, Codex, Cursor and other agents. 66 of them run an engine that returns a number and a verdict, not a paragraph. Keep your writing skills and add the arithmetic.
/plugin install aaj-marketing-skills --marketplace sarojkjha/aaj-marketing-skillsClaude Code 2.1.275 or later. The skills then appear as /aaj-marketing-skills:<skill>. Earlier versions take two commands, listed in the docs.
Free and MIT-licensed. No sign-up, no API key, no telemetry.
Try an engine
Why doesn’t this landing page convert?
website-conversion-audit- Message & Clarity8.8 / 22
- Call to Action7.5 / 20
- Trust & Proof9 / 18
- Friction & Forms14 / 16
- Speed & Mobile9.3 / 14
- Conversion Tracking5 / 10
First fixes
- Headline leads with the category, not the outcomeFail
- Several calls to action compete for the clickFail
- Button copy doesn’t say what happens nextFail
and 13 more, ranked by weight.
The engine’s own demo: a typical leaky landing page. Your agent reads the page against 23 checks; the engine does the weighting and the ranking.
Works with
- Claude Code
- OpenAI Codex
- Cursor
- Windsurf
- Cline
and any agent that follows the Agent Skills spec
A prompt describes the work. An engine does the arithmetic.
Both answers below are to the same question, from the same test numbers. Only one of them can be checked.
“Did the new pricing page win?”
Control 200 of 4,000 converted. Variant 250 of 4,050.
A prompt-only skill
“The variant looks promising. A 6% conversion rate against 5% is a meaningful improvement, though you may want to let the test run longer before deciding.”
No arithmetic shown, no verdict, nothing to check.
An AAJ engine
ab-test-significance- Control
- 5.0%
- Variant
- 6.2%
- Relative lift
- +23.5%
- p-value (two-tailed)
- 0.022
- 95% interval on the difference
- 0.2% to 2.2%
Significant at 95%. The variant wins.
Same input, same answer, and code you can read.
Start from the question you’re asking.
Every skill sits in one phase of the work: Diagnose, Design or Execute. A few of the questions each one answers:
- Are our unit economics healthy?LTV, CAC, payback and a verdict.
unit-economics - How big is this market, really?TAM, SAM and SOM with the arithmetic shown.
market-sizing - Why doesn’t the website convert?A 0–100 score and a ranked fix list.
website-conversion-audit - Can AI search engines find and cite us?A readiness score, a grade and the fixes.
seo-geo-aeo-audit
- How should we split the ad budget?A split by channel with blended CAC and payback.
paid-media-budget-allocation - How much should we spend on marketing?A planned budget, where the figure comes from, and its split.
marketing-budget-planning - Which accounts should sales go after first?A fit-scored A, B and C list with the signals matched.
target-account-list - How do we retain the customers we have?NRR, churn and a ranked retention plan.
lifecycle-and-retention
- Did the A/B test win?Lift, p-value, a verdict and the sample you need.
ab-test-significance - Will we hit the number this quarter?A weighted forecast, coverage and the gap to close.
pipeline-and-forecast - Where is the signup flow losing people?A friction score and fixes ranked by monthly value.
signup-flow-optimizer - Can we make this claim in our copy?A verdict on every sentence, and what to keep on file.
claims-and-proof-check
Or browse by category
9 categories across the 81 skills.
Skills that run an engineMethod only
- Strategy & Positioning15skills, 10 with engines
- Retention & Lifecycle13skills, 11 with engines
- Sales & Pipeline12skills, 9 with engines
- Content & Copy11skills, 10 with engines
- SEO, GEO & AEO10skills, 9 with engines
- Conversion & Web6skills, 4 with engines
- Analytics & Experimentation5skills, 5 with engines
- Paid Media & Budgeting5skills, 5 with engines
- Research & Personas4skills, 3 with engines
The engine gives you the number. What happens next is up to you.
Both come from the same method the skills are built on: one you run yourself, one runs with you.
Free, no install
Run the same engines in your browser
Not everyone wants a terminal. Many of these skills also have a free browser tool on aajconsult.com: paste a URL or your numbers, get the same output, and download it as a PDF.
- Website Conversion AuditA 0–100 score and fixes
- Unit Economics CalculatorLTV:CAC and payback
- A/B Test Significance CalculatorLift and p-value
- Pipeline Forecast & Coverage CalculatorCoverage and the gap
From $1,200
Have someone read the output with you
A score tells you what is wrong. It does not tell you what to fix first, what it is worth, or what to ignore. That is the part a person does, and it is what AAJ sells.
- Growth Audit$1,200
7 daysStart here
- AI Visibility Sprint$3,500
10 business days
- Unit Economics & Retention Sprint$3,500
10 business days
- Positioning & Message Sprint$3,500
10 business days
The audit fee is credited in full toward a sprint.
See what a sprint covers