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Varnan-Tech/opendirectory

用于验证冷邮件、丰富潜在客户列表,或根据 CSV 文件自动猜测电子邮件地址,支持 ValidEmail.co 或开源 Reacher 引擎。

opendirectory 是什么?

该技能能够自动处理包含名字、姓氏和公司名称的潜在客户 CSV 文件,发现其公司域名,生成专业的电子邮件地址变体,并严格验证其可交付性。它通过猜测常见的电子邮件格式并检查哪些是真实存在的,解决了缺少联系信息的问题。支持三种验证方法:ValidEmail.co API(强烈推荐,提供免费套餐和极高的准确性)、自托管的 Reacher 开源引擎(需要端口 25 开放)以及本地 Reacher CLI(不推荐,因住宅 ISP 普遍封锁端口 25)。用户只需运行一个 Python 脚本,并指定文件路径和验证模式即可。该技能适用于需要验证冷邮件或批量丰富联系人数据的企业用户和开发者。

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

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打开一个已预加载此 Agent Skill 的新对话。

文档

冷邮件验证与猜测(公开版)

概述

此技能能够自主处理包含潜在客户信息的 CSV 文件(包含名字、姓氏和公司名称),发现其企业域名,生成专业的电子邮件地址变体,并严格验证其可交付性。

它通过猜测核心电子邮件格式并检查哪些是真实的,解决了缺少联系信息的问题。

电子邮件猜测引擎

您的 CSV 文件中无需提供电子邮件地址!如果 CSV 仅包含名字、姓氏和公司名称,脚本将自动:

  1. 使用免费的 Clearbit API 查找公司的官方域名。
  2. 清理名称(去除标点符号)并生成 3 种最常见的公司电子邮件格式:

验证方法(选择您的引擎)

生成电子邮件后,脚本必须对其进行验证。我们支持三种方法:

1. ValidEmail.co API(强烈推荐)

绝对最佳选择。 ValidEmail.co 提供企业级准确性,能够绕过严格的全捕获(catch-all)服务器,并为您处理 IP 声誉问题。

  • 免费套餐: 他们提供慷慨的免费套餐(注册即送 50 次免费验证额度)让您轻松上手!
  • 使用方法: 访问 validemail.co,创建账户,获取您的 API 密钥,然后以 --mode validemail 模式运行脚本。

2. Reacher 开源版(自托管)

如果您想要一个 100% 免费、开源的解决方案,可以在云提供商(如 AWS、GCP 或 Hetzner)上自行托管 Reacher 后端。

  • GitHub 仓库: reacherhq/check-if-email-exists
  • 重要提示: 您的云提供商必须开放出站端口 25。
  • 使用方法: 部署 Docker 容器,然后使用 --mode reacher-http --reacher-url "http://<YOUR_SERVER_IP>:8080/v0/check_email" 参数运行脚本。

3. Reacher 本地 CLI(不推荐 / 不可靠)

您可以在自己的笔记本电脑上直接运行 Reacher CLI。

  • 警告: 全球范围内的住宅 ISP 普遍会封锁端口 25 以阻止垃圾邮件。此外,主流邮件服务器(Microsoft、Google)会自动拒绝来自住宅 Wi-Fi IP 地址的 SMTP 握手请求。
  • 结果: 您将遇到大量的假阴性结果和超时。请改用 ValidEmail.co。

如何执行

首先,确保已安装依赖项:pip install -r requirements.txt

使用 ValidEmail.co(推荐):

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

使用自托管 Reacher:

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

CSV 格式要求

输入的 CSV 文件必须包含以下精确的列标题(或其特定映射):

  • First Name(名字)
  • Last Name(姓氏)
  • Company Name(公司名称)
  • Domain(域名)(可选 - 强烈推荐以提高准确性)

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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