email-finder SKILL.md skillA

This file is byte-identical to the first copy the registry indexed, one of 3 indexed copies. Same content hash, so the same checks give both the same grade.

email-finder from genfeedai/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add genfeedai/skills/email-finder@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
genfeedai/skills
Path
email-finder/SKILL.md
Versions recorded
2
Latest version
v1.0.0, committed Jun 18, 2026
First version recorded
Jun 18, 2026
Size
2,815 bytes
Repository stars
3
License
MIT

Find and verify contact emails associated with a domain using free discovery methods first and APIs when keys are available. Triggers on domain email scans, contact discovery, email pattern finding, and email enrichment.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Email Finder

## Overview

Discover email addresses associated with a domain using a hybrid approach: free methods first (web scraping, pattern guessing, WHOIS lookup), then APIs (Hunter.io, Apollo.io, etc.) when keys are available.

## When to Use

- Scan a domain to find associated emails
- Find contact emails for a company
- Replace email hunter functionality
- Find email patterns for a domain
- Verify email addresses
- Enrich contact data with discovered emails

## Project Context Discovery

Before finding emails:

1. Check for existing email discovery tools
2. Review available API keys (Hunter.io, Apollo.io)
3. Check compliance/privacy requirements
4. Look for project-specific `[project]-email-finder` skill

## Methodology

### Free Methods (Primary)

1. **Web Scraping** - Scan `/contact`, `/about`, `/team` pages for emails
2. **WHOIS Lookup** - Query domain registration data
3. **Pattern Guessing** - Generate patterns from names found on site:
   - `firstname.lastname@domain.com`
   - `firstnamelastname@domain.com`
   - `firstname@domain.com`
   - `f.lastname@domain.com`

### API Methods (If Keys Available)

| API | Env Variable | Purpose |
|-----|-------------|---------|
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add genfeedai/skills/email-finder@sha256:e76bffec767d3f05

The line at the top of this page pins the label v1.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_qmevlsrmdte4wzn2.svg)](https://markdownregistry.com/a/art_qmevlsrmdte4wzn2)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Jun 18, 2026.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-06-18 3d91e84 2,815 BA view · diff
v1.0.02026-06-18 d040e3a 2,832 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2815 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

genfeedai/skills · 3 stars · license MIT · pushed 2026-10-20 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_qmevlsrmdte4wzn2
GET https://markdownregistry.com/api/v1/resolve?ref=genfeedai/skills/email-finder
GET https://markdownregistry.com/api/v1/blob/e76bffec767d3f05eb4794bcbb7e8947020ed0fb2f30a3194bf1a092d28ef3ce

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in genfeedai/skills

Other files named email-finder

email-finder SKILL.md skill
genfeedai/skills · bundles/all/skills/email-finder/SKILL.md · Find and verify contact emails associated with a domain using free discovery methods first and APIs when keys are…
v1.0.0 · audit A · 3 stars
email-finder SKILL.md skill
genfeedai/skills · bundles/gtm-strategy/skills/email-finder/SKILL.md · Find and verify contact emails associated with a domain using free discovery methods first and APIs when keys are…
v1.0.0 · audit A · 3 stars

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