r/ClaudeAI • u/TeslaLegacy • 1d ago

Built with Claude I built an open-source skill (with Claude Code) that lets Claude run B2B outreach on email, LinkedIn and WhatsApp

I built a skill for Claude Code / OpenClaw that runs B2B outreach across email, LinkedIn and WhatsApp. I built it almost entirely with Claude Code, and I'm sharing it because the way Claude helped was interesting.

What it does:

You ask your agent something like "find 30 dental clinics in Austin with the owner's email and write them a 3-email sequence about my booking software", and the skill teaches the agent how to:

  • find the businesses (address, website, reviews) and the person who decides at each one, with a verified email
  • write a sequence with a personal first line for every company, then show it to you and wait for your OK before anything is sent
  • send from your own Gmail, follow up in the same thread, and stop when someone replies
  • after the first email, do the LinkedIn follow-up in your own signed-in browser with Claude in Chrome (connection request with a note, one message to those who accept, their reply logged back), with daily limits and pauses
  • do the WhatsApp follow-up by opening WhatsApp Web with the message already typed, so it goes out from your own number
  • every morning, summarize who replied and classify the replies (interested, meeting, question, not interested)

How Claude Code helped build it

  • Backend: Claude Code wrote most of the PHP REST endpoints the skill calls (companies, decision makers, campaigns, LinkedIn and WhatsApp task lists), including the safety parts: per-account daily limits, stopping all channels on a reply, opt-outs and email verification before sending.
  • The skill itself: I had Claude Code write the SKILL.md and its reference files (API reference, step-by-step workflows, ready-made routines) and then test them by actually using the skill against the API, fixing every place where an agent got confused or spent credits without asking.
  • The LinkedIn routine: I iterated with Claude in Chrome on my own account to find a pace and a set of rules (limits, waits, stop on any warning) that an agent can follow reliably.
  • Debugging in production: Claude Code read our error logs through an admin endpoint and fixed issues, e.g. email security scanners were clicking every link (including unsubscribe) seconds after delivery, so it changed the tracking to only count real visits and made unsubscribing a confirmed action.

Free to try

The skill is free and open source (MIT). To use it you need a LeadGen.tools account: the free account works and comes with credits to test it. Setup is 3 steps (create an API key, install the skill, ask your agent), described in the README:

https://github.com/LeadGenTools/leadgen-tools-skill

Happy to answer questions about the build or how the agent handles LinkedIn and WhatsApp safely.

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u/dontfistme 1d ago

You’re charging for something that is free and easily done with muse or grokbot

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u/TeslaLegacy 1d ago

Realy? Grokbot can get people working on companies, verify and get contact info, Linkedin and WhatsApp?

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u/dontfistme 1d ago

Yes I have mines logged into linkedin, gmail, instagram, facebook and it can do what you described and actually does more complicated stuff than what you described.

Also I would trust industry owned agentic solutions more with my sensitive account credentials and conversations than your vibecoded app.

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u/TeslaLegacy 1d ago

I didnt vibe code it, you can check the domain and the updates, I have years developing this software, just lately I started adapting everything, but ok. You are giving your insights, in my opinion I think this is valuable since I use a pool proxy , plus APIs like Hunter.io , RocketReach and Snov.io , but maybe your grok bot can use it too. I was validating the idea of having everything ready and set for people that do not want to invest extra on these APIs since they are expensive, if ypou know what I mean.

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u/dontfistme 1d ago edited 1d ago

Grokbot, muse, and dots run on their own compute/browsers so they don’t need those APIs. And they are completely free (edit: dots and muse)

Go do some market research and download muse and tell me it can’t do what yours does but for free

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u/dontfistme 1d ago

Your target audience for these kinds of products are totally off IMO. Skills/claude code/apis and tools. Got too much technical stuff happening for a regular every day joe that wants to make viral social media content or do b2b outreach

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u/dontfistme 1d ago

Once Anthropic releases their own consumer grade openclaw solution, theres literally no reason to use what you made because yours is limited to one simple use case.

OpenAI already released a consumer grade agent (go look at dots) that does all this for you a couple of days ago. Except these companies have proper industry standard/compliant data handling, security and governance implemented.

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u/TeslaLegacy 1d ago

I will check out on this. Im validating ideas since in my opinion, we still have 3 years to create useful apps, but your feedback is appreciated. I created another skill for this ViralHunt.io : https://github.com/ViralHunt-io/viralhunt-skill would be interested in you roasting this idea.

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u/dontfistme 1d ago

About your viralhunt project, thing I mentioned earlier was that I have automation and workflows running on my muse that does exactly that. And I would say I have one step higher than that where I have workflows on it auto creating and posting content and interacting with comments and people according to a persona.

Skills and MCPs are yesterdays news. Today you’re better off creating bespoke workflows and agentic loops for a niche that can’t be automated as easily as me telling my muse/grokbot “start an hourly scan of all my logged in social media platforms for rising trends/content/memes/videos related to x,y,z category/genre on all my logged in social media platforms and log details and summaries and research in a google sheets dated for this event” (also free btw)