Marketing Skills is an open-source library of reusable workflows that helps AI coding agents perform marketing and SEO tasks. It serves people working on search optimization, content, advertising, launches, analytics, and related marketing activities, and its catalogue entries are the individual skills agents can 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.
npx skills add kostja94/marketing-skills --skill herogit clone --depth 1 https://github.com/kostja94/marketing-skillsWrote 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.
[](https://agentmods.dev/skills/kostja94/marketing-skills/hero)<a href="https://agentmods.dev/skills/kostja94/marketing-skills/hero"><img src="https://agentmods.dev/badge/skills/kostja94/marketing-skills/hero/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/kostja94/marketing-skills/hero"><img src="https://agentmods.dev/badge/skills/kostja94/marketing-skills/hero.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00030 | $0.00162 |
| Opus 5.5 | $0.00012 | $0.00065 |
| Sonnet 5.5 | $0.00006 | $0.00032 |
| Haiku 4.5 | $0.00003 | $0.00016 |
Grade A, and why
hero-generator 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 1mo 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.
Copies of this mod
3 near-identical copies found in the catalogue:
- hero-generator — 100% identical, 130 lines differ
- hero-generator — 100% identical, 130 lines differ
- hero-generator — 100% identical, 130 lines differ
What it actually says
Hero construction has moved
Hero construction is now maintained in the Hero reference in Bricks, the component layer for AI agents.
npx skills add kostja94/bricks --skill component-builder
Ask the agent to use component-builder to build a new Hero. This compatibility entry contains no component rules and is no longer maintained.
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.
- 1mo ago Changed · -112 lines · -69 tokens per session aacfc63dc37d
- 1mo ago First seen · 130 lines · 99 tokens per session scan A ea693c0b0fac
hero-generator is a skill published in the GitHub repository kostja94/marketing-skills (1,062 stars, last pushed 5d ago), licensed MIT. It adds 30 tokens to every session and 162 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.
Other skills, from other repositories
efecto-social-media
Design social media assets with Efecto — Instagram posts, carousels, stories, YouTube thumbnails, TikTok covers, Twitter/X images, LinkedIn slides, Pinterest pins, and Facebook graphics. Use when asked to "design a post", "create a carousel", "make a thumbnail", "design social media", or any social content task.…
saas-landing-pages
Design or review homepage, campaign, use-case, and product-page structure for developer tools and data products. Use for information hierarchy, proof placement, conversion paths, and page wireframes; use copywriting for wording alone.
SEO Content Optimizer
Analyzes and rewrites content to maximize search engine visibility without sounding robotic.
analytics-tracking
Design, audit, and improve analytics tracking systems that produce reliable, decision-ready data.
onboarding-cro
When the user wants to optimize post-signup onboarding, user activation, first-run experience, or time-to-value. Also use when the user mentions "onboarding flow," "activation rate," "user activation," "first-run experience," "empty states," "onboarding checklist," "aha moment," "new user experience," "users aren't…
animate
Review a feature and enhance it with purposeful animations, micro-interactions, and motion effects that improve usability and delight. Use when the user mentions adding animation, transitions, micro-interactions, motion design, hover effects, or making the UI feel more alive.