Home / Skills / browser-extension-builder
browser-extension-builder
Browser extension builder skill for Claude Code and Codex: scaffolds a local, unpacked Chrome extension that reveals verified B2B contact info (email, phone, job title, company) directly on a LinkedIn profile, then pushes the contact to HubSpot or drafts a personalized email — powered by the Explorium API. Use this whenever someone wants to build a Chrome extension, browser extension, LinkedIn contact finder, or a self-hosted Lusha / Apollo.io / Clearbit Connect-style prospecting extension. The go-to skill for 'build a Chrome extension like Lusha', 'clone the Apollo.io extension', 'LinkedIn em
Why this score
This repo hosts 10 skills, so its 266 stars are split between them (about 27 each) for scoring.
Popularity score: 60/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank
Security
Scanned Oct 20, 2026 at commit 8b9a83b05a73, with Cisco's open-source skill-scanner.
What its code does:
- Downloads content and runs it Whatever it downloads can change after we scanned it.SKILL.md:136
Web addresses in its code:
- api.explorium.aiassets/lead-finder-extension/background.js:1
- api.hubapi.comassets/lead-finder-extension/background.js:2
- mail.google.comassets/lead-finder-extension/content.js:324
These are the sites named in the code, so it's where your data could go. It isn't a complete list: code can build addresses while it runs, and a few of these may be links rather than calls. Whatever you send also goes to the AI model you use.
A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This onebrowser-extension-builder explorium-ai/gtm-skills · Skill | 60 | ★ 266 | ≈157 always | 24d ago |
| browser-extension-developer yamadashy/repomix · Skill Both about extension and browser | 87 | ★ 29k | ≈56 always | 17d ago |
| extension-create quangpl/browser-extension-skills · Skill Both about extension and chrome | 52 | ★ 62 | ≈45 always | 1mo ago |
| browser ruvnet/RuView · Skill Both about browser | 91 | ★ 99k | ≈20 always | 16d ago |
| chrome-extensions GoogleChrome/modern-web-guidance · Skill Both about extension and chrome | 79 | ★ 2.5k | ≈26 always | 16d ago |
| launch-vscode-extension microsoft/rayfin · Skill Both about extension and browser | 67 | ★ 645 | ≈96 always | 17d ago |