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Varnan-Tech/opendirectory

Úsalo cuando el usuario quiera verificar correos electrónicos fríos, enriquecer una lista de prospectos o adivinar direcciones de correo electrónico de forma autónoma a partir de un CSV usando ValidEmail.co o el motor de código abierto Reacher.

¿Qué es opendirectory?

Esta habilidad automatiza el proceso de verificación y adivinanza de correos electrónicos profesionales a partir de un archivo CSV de prospectos. Su objetivo es resolver el problema de la falta de información de contacto generando posibles formatos de correo corporativo y verificando cuáles son realmente entregables. Es compatible con tres métodos de verificación: el servicio en la nube ValidEmail.co (altamente recomendado por su precisión y facilidad de uso), el backend autoalojado de Reacher (solución gratuita y de código abierto), y el CLI local de Reacher (menos fiable debido a restricciones de red). La habilidad utiliza la API gratuita de Clearbit para descubrir el dominio corporativo a partir del nombre de la empresa, y luego genera permutaciones de correo electrónico como [email protected], [email protected] y [email protected]. Está diseñada para agentes de IA que trabajan con ventas, marketing o prospección, y se ejecuta mediante un script de Python que toma como entrada un CSV con nombres y empresas, y produce un CSV enriquecido con correos verificados.

Compatible con~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/Varnan-Tech/opendirectory/tree/main/skills/cold-email-verifier

Preguntar en tu IA favorita

Abre un nuevo chat con esta habilidad de agente ya precargada.

Documentación

Verificador y Adivinador de Correos Electrónicos Fríos (Público)

Descripción General

Esta habilidad procesa de forma autónoma un CSV de prospectos (que contenga Nombre, Apellido y Nombre de la Empresa), descubre su dominio corporativo, genera permutaciones profesionales de correo electrónico y verifica estrictamente su capacidad de entrega.

Está diseñada para resolver el problema de la falta de información de contacto adivinando posibles formatos de correo y luego comprobando cuál es real.

El Motor de Adivinanza de Correos

¡No necesitas proporcionar correos electrónicos en tu CSV! Si el CSV solo contiene Nombre, Apellido y Nombre de la Empresa, el script automáticamente:

  1. Busca el dominio oficial de la empresa usando la API gratuita de Clearbit.
  2. Limpia los nombres (eliminando puntuación) y genera los 3 formatos de correo corporativo más comunes:

Métodos de Verificación (Elige tu Motor)

Una vez que se adivinan los correos, el script debe verificarlos. Compatimos tres métodos:

1. API de ValidEmail.co (Altamente Recomendado)

La mejor opción sin duda. ValidEmail.co proporciona precisión de nivel empresarial, evita servidores estrictos de tipo catch-all y maneja la reputación de IP por ti.

  • Nivel Gratuito: Ofrecen un generoso nivel gratuito (50 créditos de verificación gratuitos al registrarse) para que empieces.
  • Cómo usar: Ve a validemail.co, crea una cuenta, obtén tu clave API y ejecuta el script con --mode validemail.

2. Reacher de Código Abierto (Autoalojado)

Si deseas una solución 100% gratuita y de código abierto, puedes alojar el backend de Reacher tú mismo en un proveedor de nube (como AWS, GCP o Hetzner).

  • Repositorio GitHub: reacherhq/check-if-email-exists
  • Importante: Tu proveedor de nube DEBE tener el puerto 25 de salida abierto.
  • Cómo usar: Aloja el contenedor Docker, luego ejecuta el script con --mode reacher-http --reacher-url "http://<TU_DIRECCIÓN_IP_DEL_SERVIDOR>:8080/v0/check_email".

3. CLI Local de Reacher (No Recomendado / No Fiable)

Puedes ejecutar el CLI de Reacher directamente en tu ordenador portátil.

  • Advertencia: Los ISP residenciales bloquean globalmente el puerto 25 para evitar spam. Además, los servidores de correo principales (Microsoft, Google) rechazarán automáticamente los handshakes SMTP desde direcciones IP de redes Wi-Fi residenciales.
  • Resultado: Obtendrás una gran cantidad de falsos negativos y tiempos de espera. Usa ValidEmail.co en su lugar.

Cómo Ejecutar

Primero, asegúrate de que las dependencias estén instaladas: pip install -r requirements.txt

Para usar ValidEmail.co (Recomendado):

export VALIDEMAIL_API_KEY="tu_clave_api_aquí"
python scripts/email_verifier.py --input leads.csv --output verified_leads.csv --mode validemail

Para usar Reacher Autoalojado:

python scripts/email_verifier.py --input leads.csv --output verified_leads.csv --mode reacher-http --reacher-url "http://tu-direccion-ip-del-servidor:8080/v0/check_email"

Requisitos del Formato CSV

El CSV de entrada debe contener estos encabezados de columna exactos (o sus asignaciones específicas):

  • Nombre
  • Apellido
  • Nombre de la Empresa
  • Dominio (Opcional - altamente recomendado para precisión)

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

Varnan-Tech/opendirectory

Use when the user asks to generate a blog cover image, thumbnail, or article header. Automatically uses modern typography, brand logos, and Google Search grounding to create beautiful 16:9 images with Gemini 3.1 Flash Image Preview.

Varnan-Tech/opendirectory

World-class brand strategist and naming expert. Uses an interrogation-led discovery phase to extract your brand's DNA, then applies scientific naming frameworks (Phonosemantics) and automated multi-TLD domain checking.

Varnan-Tech/opendirectory

Use when the user asks to generate or update a project's CLAUDE or AGENTS context file from a codebase scan. Writes a focused file under 100 lines containing only the non-obvious build commands, conventions, and gotchas Claude Code needs.

Varnan-Tech/opendirectory

Competitive intelligence orchestrator tracking companies across 8+ platforms (GitHub, Twitter, Reddit, HN, PH, YC Jobs) with heat scores and AI briefings.

Varnan-Tech/opendirectory

Give it your product URL or description. It finds your top 5 competitors, runs three-track PR research across all of them (editorial, podcasts, communities), identifies which channels appear most frequently, looks up the journalist or host for each, and returns a tiered outreach list with story angles and ready-to-send cold pitch drafts tailored to your product. Use when asked to find PR opportunities, discover where competitors got featured, build a media outreach list, find which journalists cover my space, or get pitch templates for press coverage.

Varnan-Tech/opendirectory

Generate high-converting, deep-dive growth case studies in MDX format. Use this skill when asked to write a case study or blog post about a company's growth, tech stack, or product-led strategy. It handles the full pipeline (researching the company via Tavily, generating a 16:9 cover image, quality checking the draft, uploading assets to cloud storage, and pushing directly to the target repository).

Varnan-Tech/opendirectory

Scans your project for outdated npm, pip, Cargo, Go, or Ruby packages. Runs a CVE security audit. Fetches changelogs, summarizes breaking changes with Gemini, and opens one PR per risk group (patch, minor, major). Includes Diagnosis Mode for install conflicts. Use when asked to update dependencies, check for outdated packages, open dependency PRs, scan for package updates, audit for CVEs, or flag breaking changes in upgrades. Trigger when a user says "check for outdated packages", "update my dependencies", "open PRs for dependency updates", "scan for CVEs", or "which packages need upgrading".

Varnan-Tech/opendirectory

Generates and updates README.md and API reference docs by reading your codebase's functions, routes, types, schemas, and architecture. Uses graphify to build a knowledge graph first, then writes accurate docs from it. Use when asked to write docs, generate a README, document an API, update stale docs, create an API reference from code, add an architecture section, or document a project in any language. Trigger when a user says their docs are missing, outdated, or wants to document their codebase without writing it manually.

Varnan-Tech/opendirectory

Evaluates expired domain candidates against a target niche, scores them by topical relevance, historical activity level, and history cleanliness, then outputs a ranked shortlist with explainable reasoning and risk flags.

Varnan-Tech/opendirectory

Brutally honest developer-experience audit for a GitHub repo. Scores 10 DX dimensions (time-to-first-success, README clarity, visual proof, install, quick-start, docs, examples, community, trust, marketing), writes a shareable roast in the requested tone (brutal/honest/kind), produces a prioritized action plan ranked by impact × effort, and sketches an ideal README. Trigger when user says "roast my repo", "audit my README", "dx audit", "developer experience review", "score my GitHub project", "before launch checklist", or "make my repo shareable".

Varnan-Tech/opendirectory

Drafts and designs a complete HTML email newsletter from a topic or content brief. Outputs paste-ready HTML for Loops, Mailchimp, Beehiiv, Resend, or any standard email platform. Includes subject line options and plain-text fallback. Trigger when a user says "write a newsletter", "draft an email newsletter", "create an HTML email", "design an email for my subscribers", or "write a newsletter about [topic]".

Varnan-Tech/opendirectory

Takes a GitHub PR URL or the current branch and writes a plain-English explanation of what it does and why, then posts it as a PR comment. Use when asked to explain a PR, summarize a pull request, write a plain-English description of a PR, add a summary comment to a PR, or understand what a PR changes. Trigger when a user says "explain this PR", "summarize this pull request", "what does this PR do", "add a comment explaining the PR", or shares a GitHub PR URL and asks what it does.

Varnan-Tech/opendirectory

Audit how often LLMs recommend your brand vs competitors and generate a GEO action plan.

Varnan-Tech/opendirectory

Takes a competitor's public GitHub repo URL, fetches their open issues via the GitHub REST API, filters noise locally, clusters issues into 6 demand categories, computes a demand score per issue and per cluster, and outputs a ranked demand gap report with a GTM messaging brief. Use when asked to scan a competitor's GitHub issues, find what their users are begging for, turn GitHub complaints into product positioning, identify competitor feature gaps, or generate messaging from real user demand. Trigger when a user says "scan competitor issues", "what are users asking for on X repo", "find demand gaps in Y", "turn GitHub issues into messaging", or "what should I build based on competitor complaints".

Varnan-Tech/opendirectory

Find recurring confusion in your repo's GitHub Discussions, rank it by urgency, and draft the actual docs fixes and content angles — with verbatim community quotes and source links as evidence.

Varnan-Tech/opendirectory

SEO keyword research workflow for blog generation using Google Trends data. Use when writing blog posts, planning content calendars, or optimizing articles for search engines. Finds breakout keywords, builds content structure, and generates SEO-optimized blog outlines targeting tech and developer audiences.

Varnan-Tech/opendirectory

Generates a professionally designed case study PDF for B2B SaaS sales and marketing. Supports 7 page layouts, 9 style presets, 1-4 page output. Trigger when user says "create a case study", "write a customer story", "make a case study PDF", "design a success story", "turn this customer win into a PDF".

Varnan-Tech/opendirectory

Generates data visualization charts (bar, line, area, pie, doughnut, scatter, radar, treemap) as PNG using Apache ECharts v6. 1080×1080px default, 5 style presets, highlight annotations. Trigger when user says "create a chart", "visualize data", "make a bar chart", "line graph", "pie chart", "data visualization", "chart this data", "plot", "graph", or "visualize these numbers".

Varnan-Tech/opendirectory

Creates professionally designed B2B SaaS e-books in HTML + CSS, exported as print-ready PDF. 3–10 pages, 9 style presets, 11 page layout types. Trigger when user says "create an ebook", "design a lead magnet", "make a PDF guide", "build a gated content piece", "write a B2B ebook", "design a white paper", "create a nurture asset", or "make a PDF report".

Varnan-Tech/opendirectory

Fetches low-star App Store and Google Play reviews, clusters them into broken-promise patterns, and generates a ranked copy brief with positioning opportunities.

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