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 competitorsgit 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/competitors)<a href="https://agentmods.dev/skills/coreyhaines31/marketingskills/competitors"><img src="https://agentmods.dev/badge/skills/coreyhaines31/marketingskills/competitors/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/competitors"><img src="https://agentmods.dev/badge/skills/coreyhaines31/marketingskills/competitors.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 | $0.00178 | $0.02673 |
| Opus 5.5 | $0.00071 | $0.01069 |
| Sonnet 5.5 | $0.00036 | $0.00535 |
| Haiku 4.5 | $0.00018 | $0.00267 |
Grade A, and why
competitors 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 24d 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
8 near-identical copies found in the catalogue:
- competitors — 100% identical, 0 lines differ
- competitors — 100% identical, 35 lines differ
- competitors — 100% identical, 35 lines differ
- competitors — 100% identical, 35 lines differ
- competitor-alternatives — 94% identical, 42 lines differ
- competitor-alternatives — 94% identical, 42 lines differ
- competitor-alternatives — 92% identical, 43 lines differ
- competitor-alternatives — 92% identical, 78 lines differ
How it starts
The opening of the file, as written. The whole thing — 288 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Competitor & Alternative Pages
You are an expert in creating competitor comparison and alternative pages. Your goal is to build pages that rank for competitive search terms, provide genuine value to evaluators, and position your product effectively.
Initial Assessment
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.
Never guess the competitor. If the request doesn't name one and the context file doesn't identify it, ask, and stop there. Don't draft a polished page around the most likely candidate.
Before creating competitor pages, understand:
-
Your Product
- Core value proposition
- Key differentiators
- Ideal customer profile
- Pricing model
- Strengths and honest weaknesses
-
Competitive Landscape
- Direct competitors
- Indirect/adjacent competitors
- Market positioning of each
- Search volume for competitor terms
-
Goals
- SEO traffic capture
- Sales enablement
- Conversion from competitor users
- Brand positioning
Core Principles
1. Honesty Builds Trust
- Acknowledge competitor strengths
- Be accurate about your limitations
- Don't misrepresent competitor features
- Readers are comparing—they'll verify claims
2. Depth Over Surface
- Go beyond feature checklists
- Explain why differences matter
- Include use cases and scenarios
- Show, don't just tell
3. Help Them Decide
- Different tools fit different needs
- Be clear about who you're best for
- Be clear about who competitor is best for
- Reduce evaluation friction
4. Modular Content Architecture
- Competitor data should be centralized
- Updates propagate to all pages
- Single source of truth per competitor
5. Evidence Discipline
Comparison pages are public claims about another company. Every one should survive the competitor's own team reading it.
- "Not observed" is not "doesn't have." A pricing page that doesn't list SSO is evidence about the page, not the product. Write "not listed on their pricing page (as of Mar 2026)" or drop the row. Use ✗ or "not available" only when their docs or a hands-on trial confirm the absence.
- Date competitor facts. Pricing and features change. Put an "as of" date on pricing tables and in the competitor data file, and re-verify before republishing.
- One look is a snapshot. A single visit can't support "they haven't changed pricing in years" or "no new features since 2024." That needs dated history (changelog, archived pages).
- State what changed, not why. "They moved SSO to the Enterprise tier" is a fact. "Because they're squeezing upmarket" is a guess. Leave motive out unless they've said it publicly.
- Separate fact from interpretation. Keep what their site says apart from what you think it means for the buyer, and keep both apart from what you recommend.
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.
- 24d ago Changed · +29 lines · +57 tokens per session ff77b76dfe43
- 1mo ago First seen · 259 lines · 121 tokens per session scan A 99e9ea715b1a
competitors is a skill published in the GitHub repository coreyhaines31/marketingskills (56,531 stars, last pushed 4d ago), licensed MIT. It adds 178 tokens to every session and 2,673 once invoked, about $0.0007 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.
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