---
title: Cold Outbound Skills (open source)
description: "An MIT-licensed pack of 30 Claude Code skills plus 19 signal playbooks that run a full B2B cold email operation from the terminal: ICP, list building,"
canonical: "https://10xgtm.ai/oss/cold-outbound-skills"
type: open-source-review
license: MIT
repo: "https://github.com/growthenginenowoslawski/coldoutboundskills"
language: TypeScript
---

# Cold Outbound Skills

An MIT-licensed pack of 30 Claude Code skills plus 19 signal playbooks that run a full B2B cold email operation from the terminal: ICP, list building, deliverability, copy, send, and reply scoring.

The most complete **open-source cold-outbound skill pack** for Claude Code, distilled by GrowthEngineX from more than **1,000 real B2B campaigns** into 30 skills across five tracks plus 19 buying-signal playbooks. It is MIT, free, and alive, with a solo maintainer shipping through August 2026. Two honest catches. It is **clone-and-run with your own API keys**, so the code executes on your machine and the paid tools it orchestrates cost roughly $130 a month, and the 19 Clay playbooks ship as **written recipes the author has not run live**.

## Project facts

- **License:** MIT
- **Repo:** https://github.com/growthenginenowoslawski/coldoutboundskills
- **Stars:** 668
- **Language:** TypeScript

## What it does

- Runs a guided /cold-email-kickoff orchestrator that walks ICP, lead magnet, campaign strategy, and a plan in one flow, then hands off to the right next skill for your current state
- Covers 30 skills across five tracks: strategy, infrastructure, list building, copy and send, and iterate and automate, built from patterns across 1,000-plus real B2B campaigns
- Provisions the sending stack end to end, buying domains on Dynadot, creating inboxes on Zapmail, and configuring Smartlead warmup and signatures
- Builds and qualifies lists from many sources (Prospeo title-first export, Blitz domain-first, Google Maps for local SMBs, lookalike discovery, competitor-post engagers), each gated by an ICP qualification step and graded by a list-quality scorecard
- Writes copy through a stepwise flow (direction, subject, body, final variants.yaml), auto-scans for spam words, adds spintax, and uploads to Smartlead as a DRAFT you start manually so nothing auto-fires
- Measures what matters with positive-reply scoring, single-variable experiment design, an autonomous campaign launcher, and a Monday/Wednesday/Friday operating rhythm
- Ships 19 Track 6 signal playbooks, each turning one buying signal (new-in-role, fundraising, hiring surge, pricing-page visit) into one copy-ready sentence, with Claude, Clay-table, and Clay-CLI build recipes

## What it can't do

- Run without setup work; there is no hosted option, so you clone the repo, edit a .env file, and execute TypeScript scripts on your own machine
- Cost nothing to operate; the skills are free, but the tools they drive (Smartlead, Prospeo, Dynadot, Zapmail, MillionVerifier) run roughly $360 the first month and $130 a month after
- Guarantee the 19 Clay playbooks work as written; the README states the clay-table and clay-workflow files have not been built and run in a live Clay workspace and should be treated as specifications
- Replace a sending platform; it orchestrates Smartlead and Instantly through their APIs and does not deliver mail itself
- Make your outbound legal for you; emailing consumers, skipping unsubscribes, or omitting a physical address stays on the sender, whatever the skill outputs
- Enforce its own rules mechanically; the skills are guidance the agent reads, from a solo maintainer with no tagged releases, so quality tracks how well the model follows them

---
Full review: https://10xgtm.ai/oss/cold-outbound-skills