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 simbajigege/book2skills --skill this-is-marketing-godingit clone --depth 1 https://github.com/simbajigege/book2skillsWrote 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/simbajigege/book2skills/this-is-marketing-godin)<a href="https://agentmods.dev/skills/simbajigege/book2skills/this-is-marketing-godin"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/this-is-marketing-godin/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/simbajigege/book2skills/this-is-marketing-godin"><img src="https://agentmods.dev/badge/skills/simbajigege/book2skills/this-is-marketing-godin.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium YARA Match · line 170 YARA rule matched a hack tool or exploit indicator (offensive tools, reconnaissance, privilege escalation, or exploit frameworks).Fix: Remove offensive tool references and exploit code. Legitimate agent skills should not contain penetration testing tools, exploit frameworks, or reconnaissance utilities.
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 | $0.00034 | $0.02431 |
| Opus 5 | $0.00017 | $0.01215 |
| Sonnet 5 | $0.00007 | $0.00486 |
| Haiku 4.5 | $0.00003 | $0.00243 |
Grade A, and why
this-is-marketing-godin 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 12d 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 — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Overview
This skill encodes Seth Godin's marketing philosophy from This Is Marketing. It rejects mass-market manipulation in favor of generous, specific, and empathetic work: finding the smallest viable audience, understanding their worldview deeply, earning permission to communicate, and making change that spreads through peer-to-peer trust.
Core Principle
Core premise: Marketing is the generous act of helping someone solve a problem. It's not about you — it's about them.
When to Use This Skill
Use this skill for queries that match the trigger phrases in the description and require applying the decision framework from This Is Marketing rather than summarizing the book.
The Core Framework
Principle 1: Marketing Is Change
Marketing is not promotion or advertising. It is the act of making change happen — changing someone's belief, behavior, or worldview. Every marketing effort must answer: "What change am I seeking to make, and in whom?"
The marketer's job: "I see a way to make things better. Here is who I will help, and here is how."
Principle 2: The Smallest Viable Market
The most important strategic question: What is the minimum number of people you need to influence to make your work worth doing?
Why small beats big:
- You can color a swimming pool purple with a teaspoon of dye; you can't color the ocean
- "Everyone" is not a market — it's a wish
- Specific is a form of bravery: it commits you to being accountable
- The smallest viable audience that falls in love with your work becomes your engine of growth
Finding your smallest viable market:
- What change are you seeking to make?
- Who specifically will be changed?
- What do they believe already? What worldview do they hold?
- What do they fear? What do they want?
- Where do they already gather?
Principle 3: "Who's It For?" and "What's It For?"
These two questions guide every marketing decision:
- Who's it for? Not demographics — psychographics. What do they believe? What stories do they tell themselves?
- What's it for? What change does it make? What outcome does it create?
What ships with it
4 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.
- 12d ago First seen · 217 lines · 34 tokens per session scan A 605222aec122
this-is-marketing-godin is a skill published in the GitHub repository simbajigege/book2skills (163 stars, last pushed 17d ago), licensed MIT. It adds 34 tokens to every session and 2,431 once invoked, about $0.0002 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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