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Vernan-Tech/opendirectory

Use quando o usuário deseja verificar e-mails frios, enriquecer uma lista de leads ou adivinhar autonomamente endereços de e-mail a partir de um CSV usando ValidEmail.co ou o mecanismo de código aberto Reacher.

O que é opendirectory?

Esta skill processa autonomamente um CSV de leads (contendo Nome, Sobrenome e Nome da Empresa), descobre o domínio corporativo da empresa, gera permutações profissionais de e-mail e verifica rigorosamente a entregabilidade dos mesmos. Ela resolve o problema de falta de informações de contato, adivinhando ângulos comuns de e-mail e verificando qual deles é real. A skill suporta três métodos de verificação: ValidEmail.co (recomendado, com nível de precisão empresarial e uma camada gratuita generosa), Reacher auto-hospedado (solução open-source gratuita, mas requer uma nuvem com porta 25 aberta) e Reacher CLI local (não recomendado devido a bloqueios de ISPs e resultados não confiáveis). Basta fornecer um CSV com Nome, Sobrenome e Nome da Empresa; a skill cuidará do resto, desde a descoberta do domínio até a verificação final.

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

Verificador e Adivinhador de E-mails Frios (Público)

Visão Geral

Esta skill processa autonomamente um CSV de leads (contendo Nome, Sobrenome e Nome da Empresa), descobre o domínio corporativo da empresa, gera permutações profissionais de e-mail e verifica rigorosamente a entregabilidade dos mesmos.

Ela foi projetada para resolver o problema de falta de informações de contato, adivinhando ângulos comuns de e-mail e verificando qual deles é real.

O Mecanismo de Adivinhação de E-mail

Você não precisa fornecer e-mails no seu CSV! Se o CSV contiver apenas Nome, Sobrenome e Nome da Empresa, o script automaticamente:

  1. Consulta o domínio oficial da empresa usando a API gratuita do Clearbit.
  2. Limpa os nomes (removendo pontuação) e gera os 3 formatos de e-mail corporativo mais comuns:

Métodos de Verificação (Escolha seu Mecanismo)

Uma vez que os e-mails são adivinhados, o script deve verificá-los. Oferecemos três métodos:

1. API ValidEmail.co (Altamente Recomendado)

A melhor opção absoluta. ValidEmail.co fornece precisão de nível empresarial, contorna servidores catch-all rigorosos e gerencia a reputação de IP para você.

  • Camada Gratuita: Eles oferecem uma generosa camada gratuita (50 créditos de verificação gratuitos no cadastro) para você começar!
  • Como usar: Acesse validemail.co, crie uma conta, obtenha sua chave de API e execute o script com --mode validemail.

2. Reacher Open Source (Auto-hospedado)

Se você quiser uma solução 100% gratuita e de código aberto, pode hospedar o backend do Reacher em um provedor de nuvem (como AWS, GCP ou Hetzner).

  • Repositório GitHub: reacherhq/check-if-email-exists
  • Importante: Seu provedor de nuvem DEVE ter a Porta 25 de saída aberta.
  • Como usar: Hospede o contêiner docker, depois execute o script usando --mode reacher-http --reacher-url "http://<SEU_IP_DO_SERVIDOR>:8080/v0/check_email".

3. Reacher CLI Local (Não Recomendado / Não Confiável)

Você pode executar o CLI do Reacher diretamente no seu laptop.

  • Aviso: Provedores de ISP residenciais bloqueiam globalmente a Porta 25 para prevenir spam. Além disso, servidores de e-mail importantes (Microsoft, Google) rejeitarão automaticamente handshakes SMTP de endereços IP de Wi-Fi residenciais.
  • Resultado: Você terá uma quantidade massiva de falsos negativos e timeouts. Use ValidEmail.co.

Como Executar

Primeiro, garanta que as dependências estão instaladas: pip install -r requirements.txt

Para usar ValidEmail.co (Recomendado):

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

Para usar Reacher Auto-hospedado:

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

Requisitos de Formato CSV

O CSV de entrada deve conter exatamente estes cabeçalhos de coluna (ou seus mapeamentos específicos):

  • Nome
  • Sobrenome
  • Nome da Empresa
  • Domínio (Opcional - altamente recomendado para precisão)

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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