Cro Optimization
ognjengt/founder-skills
Analyzes landing pages and provides detailed CRO (Conversion Rate Optimization) recommendations.
Conversion Rate Optimization auditing for landing pages, signup flows, checkout funnels, forms, and CTAs.
Install Cro Auditor
$ npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install thatrebeccarae/claude-marketing cro-auditor --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cro-auditor .claude/skills/cro-auditor && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "cro-auditor" agent skill from https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditor into .claude/skills/cro-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cro-auditor", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditorType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install thatrebeccarae/claude-marketing cro-auditor --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/cro-auditor .agents/skills/cro-auditor && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cro-auditor" agent skill from https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditor into .agents/skills/cro-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cro-auditor", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install thatrebeccarae/claude-marketing cro-auditor --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/cro-auditor .cursor/skills/cro-auditor && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "cro-auditor" agent skill from https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditor into .cursor/skills/cro-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cro-auditor", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/thatrebeccarae/claude-marketing.git --path skills/cro-auditor--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install thatrebeccarae/claude-marketing cro-auditor --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/cro-auditor .gemini/skills/cro-auditor && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "cro-auditor" agent skill from https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditor into .gemini/skills/cro-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cro-auditor", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install thatrebeccarae/claude-marketing cro-auditorInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/cro-auditor .github/skills/cro-auditor && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "cro-auditor" agent skill from https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditor into .github/skills/cro-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cro-auditor", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install thatrebeccarae/claude-marketing cro-auditor --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/thatrebeccarae/claude-marketing.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/cro-auditor .opencode/skills/cro-auditor && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "cro-auditor" agent skill from https://github.com/thatrebeccarae/claude-marketing/tree/main/skills/cro-auditor into .opencode/skills/cro-auditor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cro-auditor", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
cro-auditor- GitHub stars
- 161
- Token cost
- ~1.8k tokens
- SKILL.md length
- 712 words
- Files
- 4
- Skills in repo
- 55
- Repo updated
- First seen
- Licence
- MIT
At a glance
Conversion Rate Optimization auditing for landing pages, signup flows, checkout funnels, forms, and CTAs.
- Works in 4 steps: Traffic volume: How many users enter… → Drop-off rate: What percentage leave… → Top exit pages: Where exactly do users… → …
- The user asks about conversion optimization
- SKILL.md covers Install, Audit Framework, Audit Output Format and Common Conversion Killers, plus 1 more section
- Calls git
What it does
Cro Auditor is an agent skill from thatrebeccarae/claude-marketing. Conversion Rate Optimization auditing for landing pages, signup flows, checkout funnels, forms, and CTAs. Identifies friction points, runs heuristic evaluations, produces prioritized recommendations using ICE/PIE frameworks. Use when the user asks about conversion optimization, funnel analysis, landing page audits, form optimization, CTA testing, or checkout improvement.
Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files (for example `EXAMPLES.md` and `REFERENCE.md`).
It sits in Marketing & SEO, covering Conversion rate optimization and Landing pages. The repository describes itself as: A full marketing department for Claude Code. Skill packs for Klaviyo, Shopify, GA4, Looker Studio, paid media, and more. Audit, optimize, and report using natural language. The licence is MIT.
When your agent uses it
- The user asks about conversion optimization
- Funnel analysis
- Landing page audits
- Form optimization
Example prompts
- “/cro-auditor”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Traffic volume: How many users enter this stage?
- Drop-off rate: What percentage leave without advancing?
- Top exit pages: Where exactly do users abandon?
- Friction indicators: Time on page, scroll depth, rage clicks
What it can do on your machine
Read from SKILL.md and the folder at commit a8a63ec. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
git
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Cro Auditor loads about 1.8k tokens when it runs. Until then it costs about 96 tokens; SKILL.md has 712 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from thatrebeccarae/claude-marketing at commit a8a63ec, republished under its MIT licence (© thatrebeccarae). 712 words, ~1,793 tokens.
Download SKILL.mdSave it as
.claude/skills/cro-auditor/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- cro-auditor
- description
- Conversion Rate Optimization auditing for landing pages, signup flows, checkout funnels, forms, and CTAs. Identifies friction points, runs heuristic evaluations, produces prioritized recommendations using ICE/PIE frameworks. Use when the user asks about conversion optimization, funnel analysis, landing page audits, form optimization, CTA testing, or checkout improvement.
- license
- MIT
- origin
- custom
- author
- Rebecca Rae Barton
- author_url
- https://github.com/thatrebeccarae
- metadata.version
- 1.0.0
- metadata.category
- growth
- metadata.domain
- conversion-optimization
- metadata.updated
- 2026-03-18
- metadata.tested
- 2026-03-18
- metadata.tested_with
- Claude Code v2.1
CRO Auditor
Conversion Rate Optimization — audit landing pages, funnels, forms, and CTAs for friction and opportunities.
Install
git clone https://github.com/thatrebeccarae/claude-marketing.git && cp -r claude-marketing/skills/cro-auditor ~/.claude/skills/Audit Framework
Heuristic Evaluation (LIFT Model)
Score each page element on 6 dimensions:
| Factor | Question | Increases/Decreases Conversion |
|---|---|---|
| Value Proposition | Is the benefit clear and compelling? | Increases |
| Relevance | Does this match what brought the user here? | Increases |
| Clarity | Is the message and action obvious? | Increases |
| Urgency | Is there a reason to act now? | Increases |
| Anxiety | Are there concerns about taking action? | Decreases |
| Distraction | Are there elements competing for attention? | Decreases |
Page-Level Audit Checklist
Above the Fold
- Value proposition visible without scrolling
- Primary CTA visible and prominent
- Hero image/visual supports the message (not stock photo)
- Navigation does not distract from primary conversion goal
- Page loads in under 2.5 seconds (LCP)
Value Proposition
- Headline communicates specific benefit (not feature)
- Subheadline provides supporting detail
- Unique differentiator is clear (why you vs alternatives)
- Social proof near the value proposition (logos, count, rating)
Call to Action
- CTA text is action-oriented and specific ("Start Free Trial" not "Submit")
- CTA button contrasts with page design (stands out visually)
- Single primary CTA per page section (no competing actions)
- CTA appears multiple times on long pages (top, middle, bottom)
- Microcopy near CTA reduces anxiety ("No credit card required")
Social Proof
- Customer logos (if B2B)
- Testimonials with real names, photos, and specific results
- Case studies or metrics ("Helped 5,000+ companies increase revenue by 34%")
- Trust badges (security, certifications, awards)
- User count or activity ("Join 50,000+ marketers")
Forms
- Minimum fields necessary (every field reduces conversion 5-10%)
- Labels above fields (not placeholder-only)
- Inline validation with helpful error messages
- Progress indicator for multi-step forms
- Autofill enabled (autocomplete attributes)
- Mobile-friendly input types (tel, email, number)
Friction & Anxiety
- No unexpected costs or requirements revealed late
- Privacy policy and terms linked (not gating)
- Money-back guarantee or free trial clearly stated
- Contact information visible (phone, chat, email)
- FAQ section addressing common objections
Funnel Analysis
Funnel Mapping
Awareness → Interest → Desire → Action → Retention
↓ ↓ ↓ ↓ ↓
Ad/SEO → Landing → Pricing → Signup → Onboarding
Page Page Form FlowFor each stage:
- Traffic volume: How many users enter this stage?
- Drop-off rate: What percentage leave without advancing?
- Top exit pages: Where exactly do users abandon?
- Friction indicators: Time on page, scroll depth, rage clicks
Conversion Benchmarks
| Page Type | Good | Average | Poor |
|---|---|---|---|
| Landing page (paid traffic) | >5% | 2-5% | <2% |
| Landing page (organic) | >3% | 1-3% | <1% |
| Signup form | >25% | 10-25% | <10% |
| Checkout (e-commerce) | >3% | 1.5-3% | <1.5% |
| Free trial → paid | >25% | 10-25% | <10% |
| Email opt-in | >5% | 2-5% | <2% |
| Pricing page → signup | >10% | 5-10% | <5% |
Prioritization Frameworks
ICE Score
| Dimension | Definition | Scale |
|---|---|---|
| Impact | How much will this change improve conversion? | 1-10 |
| Confidence | How sure are we this will work? | 1-10 |
| Ease | How easy is it to implement? | 1-10 |
ICE Score = (Impact + Confidence + Ease) / 3
Show full SKILL.md (272 more words)Show less
PIE Score
| Dimension | Definition | Scale |
|---|---|---|
| Potential | How much room for improvement? | 1-10 |
| Importance | How valuable is the traffic to this page? | 1-10 |
| Ease | How easy is it to run a test? | 1-10 |
PIE Score = (Potential + Importance + Ease) / 3
Audit Output Format
Executive Summary
- Current conversion rate vs benchmark
- Top 3 conversion killers identified
- Estimated revenue impact of fixes
- Quick wins (implementable in <1 day)
Issue Format
**Issue:** [What is wrong]
**Location:** [Page/element affected]
**Impact:** [HIGH/MEDIUM/LOW] — [Estimated conversion impact]
**Evidence:** [Data, heuristic principle, or benchmark comparison]
**Fix:** [Specific recommendation]
**Test:** [A/B test hypothesis: "Changing X will increase Y by Z%"]
**ICE Score:** [X/10]A/B Test Recommendations
For each recommendation, provide:
- Hypothesis: If we [change], then [metric] will [improve/increase] because [reason]
- Primary metric: The conversion metric to measure
- Minimum sample size: Based on current traffic and expected effect size
- Test duration: Minimum days to reach significance (usually 2-4 weeks)
Common Conversion Killers
- Slow page load — Every 100ms delay reduces conversion by 1%
- Unclear value proposition — Visitor cannot answer "What is this and why should I care?" in 5 seconds
- Too many form fields — Each additional field reduces completion by 5-10%
- Weak CTA — Generic text ("Submit", "Click Here") vs specific ("Start Free Trial")
- No social proof — 92% of consumers read reviews before purchasing
- Hidden costs — Unexpected shipping/fees are the #1 reason for cart abandonment
- Competing CTAs — Multiple equal-weight actions create decision paralysis
- Mobile friction — Tiny buttons, horizontal scroll, slow load on mobile
- Trust deficit — No security badges, reviews, or contact info
- Exit without capture — No email capture, exit intent, or remarketing pixel
Integration with Other Skills
- google-analytics — Pull conversion data to ground CRO recommendations in real metrics
- landing-page-optimizer — Deep-dive on specific landing pages (when built)
- a-b-testing-framework — Design and analyze tests for CRO recommendations (when built)
- pro-report-builder — Generate professional CRO audit deliverable
© thatrebeccarae, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files in skills/cro-auditor of thatrebeccarae/claude-marketing.
- SKILL.md
- EXAMPLES.md
- LICENSE
- REFERENCE.md
Open the folder on GitHubat commit a8a63ec
Compare with similar skills
Cro Auditor next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Cro Auditor this skillthatrebeccarae/claude-marketing | 161 | — | ~1.8k | Automated safety check: Pass | MIT | |
| Cro Optimizationognjengt/founder-skills | 447 | — | ~2.4k | Automated safety check: Pass | MIT | |
| CroNexus-JPF/note-companion | 870 | 5 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Crosickn33/agentic-awesome-skills | 47k | 1 repos | ~1.6k | Automated safety check: Pass | MIT | |
| Landing Page Copyrampstackco/claude-skills | 945 | — | ~2.7k | Automated safety check: Pass | MIT | |
| Page CroOpenClaudia/openclaudia-skills | 713 | — | ~1.6k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Cro Auditor
What does Cro Auditor do?
Conversion Rate Optimization auditing for landing pages, signup flows, checkout funnels, forms, and CTAs. Cro Auditor is an agent skill from thatrebeccarae/claude-marketing. Conversion Rate Optimization auditing for landing pages, signup flows, checkout funnels, forms, and CTAs.
When should I use Cro Auditor?
Cro Auditor fits situations like: the user asks about conversion optimization; funnel analysis; landing page audits; form optimization.
How do I install Cro Auditor in Claude Code?
Run `npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a claude-code`. Or copy the skill folder (skills/cro-auditor in thatrebeccarae/claude-marketing) into .claude/skills/cro-auditor in your project. Claude Code loads it when a task matches its description.
How do I install Cro Auditor in Codex?
Run `npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a codex`. Or copy the skill folder (skills/cro-auditor in thatrebeccarae/claude-marketing) into .agents/skills/cro-auditor in your project. Codex loads it when a task matches its description.
Can I use Cro Auditor in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add thatrebeccarae/claude-marketing --skill cro-auditor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cro-auditor, .gemini/skills/cro-auditor, .github/skills/cro-auditor and .opencode/skills/cro-auditor in your project.
What does Cro Auditor need to run?
Going by SKILL.md and its folder, Cro Auditor needs the command-line tools its instructions call (git).
Does Cro Auditor access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Cro Auditor safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Cro Auditor use?
Cro Auditor is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Cro Auditor use?
About 1.8k tokens (SKILL.md is roughly 7.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Cro Auditor?
Skills that share tags, products or a category with Cro Auditor: Cro Optimization (ognjengt/founder-skills, 447 stars), Cro (Nexus-JPF/note-companion, 870 stars), Cro (sickn33/agentic-awesome-skills, 47k stars) and Landing Page Copy (rampstackco/claude-skills, 945 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cro Auditor?
thatrebeccarae (a GitHub user) maintains it in thatrebeccarae/claude-marketing, which has 161 GitHub stars. The repository holds 55 skills in this directory. The repository was last updated on May 14, 2026.
Source: thatrebeccarae/claude-marketing on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.