StealIt
Corey HainesClaude skill for marketing

Signup

signup

When the user wants to optimize signup, registration, account creation, or trial activation flows. Also use when the user mentions "signup conversions," "registration friction," "signup form optimization," "free trial signup," "reduce signup dropoff," "account creation flow," "people aren't signing up," "signup abandonment," "trial conversion rate," "nobody completes registration," "too many steps to sign up," or "simplify our signup." Use this whenever the user has a signup or registration flow that isn't performing. For post-signup onboarding, see onboarding. For lead capture forms (not account creation), see cro.

Install

Run this in your project folder. It works with Claude Code, Cursor, Codex and dozens of other agents.

$ npx skills add coreyhaines31/marketingskills --skill signup

Needs Node.js. Add -g to install for every project, or -a claude-code to skip the agent picker.

How to use Signup

Once it's installed, Claude reads this skill on its own whenever a request matches what it's for, so you don't have to mention it by name. In Claude Code you can also run it directly by typing /signup.

It contains no scripts, only instructions and reference files, so it can't run code on its own.

What the instructions cover

  1. 1Initial Assessment
  2. 2Core Principles
  3. 3Field-by-Field Optimization
  4. 4Single-Step vs. Multi-Step
  5. 5Trust and Friction Reduction
  6. 6Mobile Signup Optimization
  7. 7Post-Submit Experience
  8. 8Measurement
  9. 9Output Format
  10. 10Common Signup Flow Patterns
  11. 11Experiment Ideas
  12. 12Task-Specific Questions

Section headings from the skill's SKILL.md file.

What's inside · 2 files

  • SKILL.md
  • evals/evals.json

More from Corey Haines

See all →

CopywritingTop pick

When the user wants to write, rewrite, or improve marketing copy for any page, including homepage, landing pages, pricing pages, feature pages, about pages, or product pages. Also…

Marketing & SEOCorey Haines58k

A/B Testing

When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test,"…

Marketing & SEOCorey Haines58k

Ad Creative

When the user wants to generate, iterate, or scale ad creative — headlines, descriptions, primary text, or full ad variations — for any paid advertising platform. Also use when…

Marketing & SEOCorey Haines58k

Ads

When the user wants help with paid advertising campaigns on Google Ads, Meta (Facebook/Instagram), LinkedIn, Twitter/X, or other ad platforms. Also use when the user mentions…

Marketing & SEOCorey Haines58k

More Claude skills for marketing

See all →

SEOTop pick

Comprehensive SEO analysis for any website or business type. Full site audits, single-page analysis, technical SEO (crawlability, indexability, Core Web Vitals with INP), schema…

Marketing & SEOAgrici Daniel27k

Last 30 Days

Research what people actually say about any topic in the last 30 days. Pulls posts and engagement from Reddit, X, YouTube, TikTok, Hacker News, Polymarket, GitHub, and the web…

Marketing & SEOmvanhorn67k

SEO Agentic

Audit and fix agent readiness: the Lighthouse Agentic Browsing fraction, accessibility tree for agents, robots.txt and Content-Signal for AI agents, WAF treatment of agent…

Marketing & SEOAgrici Daniel27k

SEO Audit

Run a full-site SEO audit and return a scored, prioritized report. Use only for site-wide checks; use seo-page for one URL or seo-technical for a technical-only review.

Marketing & SEOAgrici Daniel27k