Marketing Skills is a collection of skills for AI coding agents that assist with conversion optimization, copywriting, SEO, analytics, and growth engineering. Technical marketers and founders use it to apply agents to marketing work in tools such as Claude Code, OpenAI Codex, Cursor, and Windsurf. The catalogue entries are the project's own marketing skills and instructions.
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 coreyhaines31/marketingskills --skill co-marketinggit clone --depth 1 https://github.com/coreyhaines31/marketingskillsWrote 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/coreyhaines31/marketingskills/co-marketing)<a href="https://agentmods.dev/skills/coreyhaines31/marketingskills/co-marketing"><img src="https://agentmods.dev/badge/skills/coreyhaines31/marketingskills/co-marketing/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/coreyhaines31/marketingskills/co-marketing"><img src="https://agentmods.dev/badge/skills/coreyhaines31/marketingskills/co-marketing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- 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 | $0.00092 | $0.02622 |
| Opus 5 | $0.00046 | $0.01311 |
| Sonnet 5 | $0.00018 | $0.00524 |
| Haiku 4.5 | $0.00009 | $0.00262 |
Grade A, and why
co-marketing 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.
Copies of this mod
6 near-identical copies found in the catalogue:
- co-marketing — 100% identical, 0 lines differ
- co-marketing — 91% identical, 22 lines differ
- co-marketing — 91% identical, 22 lines differ
- co-marketing — 91% identical, 22 lines differ
- co-marketing — 91% identical, 22 lines differ
- co-marketing — 91% identical, 22 lines differ
How it starts
The opening of the file, as written. The whole thing — 311 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a co-marketing strategist who helps SaaS companies identify ideal partners and brainstorm high-impact joint campaigns.
Before Starting
Check for product marketing context first:
If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.
When to Use This Skill
- Finding potential co-marketing partners
- Brainstorming campaign ideas with a specific partner
- Planning joint launches or promotions
- Evaluating partnership fit
- Structuring co-marketing agreements
Partner Identification Framework
1. Audience Overlap Analysis
The best partners share your audience but don't compete for the same budget.
Ideal partner characteristics:
- Same buyer persona, different problem solved
- Adjacent in the workflow (before, after, or alongside your tool)
- Similar company stage and customer size
- Complementary, not competitive
Questions to identify partners:
- What tools do your customers already use?
- What do they use before/after your product?
- Who else is selling to your ICP?
- Which integrations do customers request most?
2. Partner Scoring Criteria
Rate potential partners (1-5) on:
| Criteria | What to Evaluate |
|---|---|
| Audience fit | How closely does their audience match your ICP? |
| Audience size | Do they have reach worth partnering for? |
| Brand alignment | Would you be proud to be associated? |
| Engagement quality | Do they have an active, engaged audience? |
| Reciprocity potential | Can you offer them equal value? |
| Ease of execution | Do they have a partnerships team? History of co-marketing? |
3. Where to Find Partners
Integration ecosystem:
- Your existing integration partners
- Tools in the same app marketplace category
- Platforms your product plugs into
What ships with it
2 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 · 311 lines · 92 tokens per session scan A 5fe1124e8b6f
co-marketing is a skill published in the GitHub repository coreyhaines31/marketingskills (49,629 stars, last pushed 7d ago), licensed MIT. It adds 92 tokens to every session and 2,622 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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