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 LeadMagic/gtm-skills --skill ad-creative-strategygit clone --depth 1 https://github.com/LeadMagic/gtm-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/leadmagic/gtm-skills/ad-creative-strategy)<a href="https://agentmods.dev/skills/leadmagic/gtm-skills/ad-creative-strategy"><img src="https://agentmods.dev/badge/skills/leadmagic/gtm-skills/ad-creative-strategy.svg" alt="Measured on agentmods" 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 | $0.00097 | $0.01585 |
| Opus 5 | $0.00048 | $0.00792 |
| Sonnet 5 | $0.00019 | $0.00317 |
| Haiku 4.5 | $0.00010 | $0.00159 |
Grade A, and why
ad-creative-strategy 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.
How it starts
The opening of the file, as written. The whole thing — 167 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Ad Creative Strategy
Overview
Creative is the single biggest lever in paid advertising performance. A great creative on a mediocre audience outperforms a mediocre creative on a perfect audience. This skill covers creative formats per platform, testing methodology, fatigue management, and scaling creative production.
Authoritative Foundations
- Meta Creative Testing Framework — Shapes deliverables for this skill — Creative is the single biggest lever in paid advertising performance.
- ARC Ads Creative Methodology — Shapes deliverables for this skill — Creative is the single biggest lever in paid advertising performance.
- Ann Handley — Everybody Writes — Everybody Writes
When to Use
- "Create ad creative for LinkedIn"
- "Develop a creative testing plan"
- "Our ads are fatigued — refresh creative"
- "What creative formats work on each platform?"
- "Scale our ad creative production"
- "AI-generated ad creative"
Step-by-Step Process
Phase 1: Creative Formats by Platform
LinkedIn Ads:
- Single image: 1200x627px. 1-2 lines of text overlay. Best for: offers, events.
- Carousel: 1080x1080px per card, 3-10 cards. Best for: storytelling, data.
- Video: 3-30 seconds. Square (1:1) or vertical (4:5). Best for: product demos.
- Document ads: PDF uploaded as carousel. Best for: guides, reports, templates.
Google Ads:
- Responsive search ads: 15 headlines (30 chars), 4 descriptions (90 chars). Google mixes and optimizes. Feed all 15 — more assets = better performance.
- Display: 1200x628, 300x250, 728x90, 160x600. Static or HTML5.
- YouTube: 15-30 seconds skippable. Hook in first 5 seconds.
Meta (FB/IG):
- Feed: 1080x1080 (square) or 1080x1350 (vertical). Video or static.
- Stories: 1080x1920 (full vertical). 15 seconds max.
- Lead forms: same creative specs, plus form questions.
TikTok:
- 9:16 vertical video. 15-60 seconds. Native-looking (not polished corporate).
- Hook in first 2 seconds. Text overlay. Captions. Trending audio optional.
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 4d ago Changed b8594e8f5a08
- 8d ago First seen · 167 lines · 97 tokens per session scan A 4c7a515fe390
ad-creative-strategy is a skill published in the GitHub repository LeadMagic/gtm-skills (48 stars, last pushed yesterday), licensed MIT. It adds 97 tokens to every session and 1,585 once invoked, about $0.0005 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 2026-08-30.
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