# extenshi-io

> extenshi-io — extenshi-io-extenshi-io. Use this tool when you need to analyze browser extensions for security vulnerabilities or manage large catalogs of extensions across multiple stores. It provides a comprehensive database of 373k+ extensions, along with developer tools and research reports to aid in extension development and security assessment. Ideal for developers, researchers, and security professionals seeking to evaluate and improve browser extension security.

Canonical page: https://skillsregistry.net/skills/extenshi-io-extenshi-io  
JSON: https://api.skillsregistry.net/v1/skills/extenshi-io-extenshi-io

## Description

Public home of extenshi.io — cross-store catalog of 373k+ browser extensions with security analysis, plus developer tools (@extenshi/cli, @extenshi/mcp, @extenshi/guard) and CC BY 4.0 research reports

## Trust

- **Trust score (0–1):** 0.50
- **Verification tier:** unverified

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/Extenshi-io/extenshi-io)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "extenshi-io-extenshi-io"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/extenshi-io-extenshi-io` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/extenshi-io-extenshi-io/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt