popup-cro

popup-cro is a skill for Claude Code, Codex from Sudhakaran88/solopreneur-skills. It costs 107 tokens per session (3,891 once invoked), scanned A, original, MIT.

A guide for creating and improving popups, modals, slide-ins, sticky bars, and announcement banners that ask website visitors to take an action.

In plain words
What is it for?
Use it to design email-capture and exit-intent popups, add announcements, choose popup tools, and diagnose weak popup results.
Why use it?
It helps capture leads without making the site unpleasant to use or causing mobile search-visibility problems.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to design email-capture and exit-intent popups, add announcements, choose popup tools, and diagnose weak popup results.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sudhakaran88/solopreneur-skills/popup-cro
Install

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.

Any agent
npx skills add Sudhakaran88/solopreneur-skills --skill popup-cro
Clone the repo
git clone --depth 1 https://github.com/Sudhakaran88/solopreneur-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for popup-cro

README.md
[![agentmods](https://agentmods.dev/badge/skills/sudhakaran88/solopreneur-skills/popup-cro/github.svg)](https://agentmods.dev/skills/sudhakaran88/solopreneur-skills/popup-cro)
Your own site
<a href="https://agentmods.dev/skills/sudhakaran88/solopreneur-skills/popup-cro"><img src="https://agentmods.dev/badge/skills/sudhakaran88/solopreneur-skills/popup-cro/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.

agentmods 80×15 button for popup-cro

Your own site · 80×15
<a href="https://agentmods.dev/skills/sudhakaran88/solopreneur-skills/popup-cro"><img src="https://agentmods.dev/badge/skills/sudhakaran88/solopreneur-skills/popup-cro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 107 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,891 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00107 $0.03891
Opus 5 $0.00053 $0.01946
Sonnet 5 $0.00021 $0.00778
Haiku 4.5 $0.00011 $0.00389

Measured 12d ago against content hash 0e9c7a9cdadc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

popup-cro 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.

skills/popup-cro/SKILL.md · 307 lines

How it starts

The opening of the file, as written. The whole thing — 307 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a popup conversion expert helping solopreneurs capture more emails and leads with overlays that don't annoy visitors, tank SEO, or trigger Google's intrusive interstitial penalty.


1. When to Use This Skill

Use this skill when you need to:

  • Build or fix an email capture popup (lead magnet, newsletter, discount)
  • Set up exit intent popups to recover abandoning visitors
  • Add a slide-in, sticky bar, or announcement banner
  • Audit a popup that gets dismissed too fast or has low conversion
  • Make sure your popups won't get you penalized by Google on mobile
  • Choose the right popup tool for your stack and budget

Not this skill: Forms embedded in landing pages → use form-cro. Onboarding flows after signup → use onboarding-cro. Full page conversion audit → use page-cro.


2. Check for Context First

Before giving recommendations, ask or check solopreneur-context.md for:

  • Goal: Email capture / lead gen / announcement / discount / offer?
  • Traffic type: Cold (SEO/ads) or warm (returning visitors, social)?
  • Mobile traffic %: Critical — changes what you can safely show
  • Current tool: What popup builder are you using?
  • Current conversion rate: What are you seeing now?
  • Trigger preference: Do you have a trigger set up (exit, scroll, time)?

Without this context, recommendations will be generic. The difference between 2% and 8% conversion is almost always in the targeting + offer combination, not the design.


3. Google's Intrusive Interstitial Penalty

This is real, still active, and solopreneurs get burned by it constantly.

What the penalty is

Google launched the mobile intrusive interstitials penalty in January 2017. It is still enforced in 2025. The 2024 Google Content Warehouse leak confirmed it is a primary ranking signal, with a named attribute violatesMobileInterstitialPolicy and a scaled violation strength from 0 to 1000.

The penalty applies specifically when a visitor arrives from a Google mobile search result and is immediately shown an interstitial that blocks the main content.

Read the full file on GitHub · 307 lines

Changes

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.

  1. 12d ago First seen · 307 lines · 107 tokens per session scan A 0e9c7a9cdadc

Subscribe to this mod's changes

popup-cro is a skill published in the GitHub repository Sudhakaran88/solopreneur-skills (5 stars, last pushed 2mo ago), licensed MIT. It adds 107 tokens to every session and 3,891 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 2026-08-31.

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