Cold Outbound Skills: 30 Claude Code Skills for Cold Email Campaigns

Where this fits

You're a developer building an AI-powered outreach agent. Your stack handles everything except the messy part: sourcing leads, writing copy, and orchestrating a sequence. You could duct-tape together scrapers and prompt templates, but you'd rather stand on the shoulders of a proven system. That's where coldoutboundskills comes in. It packages 30+ Claude Code skills into a single workflow that goes from a raw company name to a running cold email campaign—guided by /cold-email-kickoff, which coordinates ICP definition, lead magnet brainstorming, strategy, and planning in one interactive session.

Why agents benefit

• End-to-end orchestration: The kickoff skill acts as a meta-agent, calling downstream skills (ICP onboarding, lead magnet brainstorm, campaign planner) in the right order, so your agent doesn't need custom glue code.
• Structured data generation: icp-onboarding scrapes a website and produces a client-profile.yaml—a schema your agent can reliably consume for downstream personalization or API calls.
• Signal playbooks: Each of the 19 signal playbooks ships as a Claude skill, a Clay table build, and a Clay CLI workflow—giving your agent multiple execution paths for lead sourcing.
• Copywriting depth: Skills cover subject lines, body copy, and sequence design, informed by 1,000+ real B2B campaigns—so output quality is grounded in field patterns, not generic advice.
• Maintainable structure: Skills are organized in five tracks (strategy, infrastructure, sourcing, copywriting, ops), making it easy to extend or selectively invoke only the parts your workflow needs.

Practical scenarios

Setting up a targeted lead list

You feed the agent a company URL and it calls icp-onboarding to scrape the site, ask you a few clarifying questions, and output a structured ICP profile. Then it hands that profile to lead-sourcing skills that can query Apollo or Clay—turning a blank slate into a segmented list in minutes.

Crafting a personalized cold email sequence

Instead of writing one-off emails, you invoke the copywriting skills with your ICP profile. The agent generates multiple subject lines and body variants based on known trigger events (new funding, hiring spree), and checks them against the signal playbooks to suggest follow-up timing.

Running a full campaign from kickoff

You run /cold-email-kickoff and let the orchestrator walk you through every step: define ICP, pick a lead magnet, choose a strategy, and generate a campaign plan. It creates a project file that your agent can execute against, including sending infrastructure config if needed.

Add it to your agent workflow

Install the skill pack with:

npx skills add growthenginenowoslawski/coldoutboundskills

Then, inside a Claude Code session, start with the guided flow:

/cold-email-kickoff

This will walk you through the onboarding steps and produce a campaign plan you can iterate on. You'll need API keys for any data enrichment services you plan to use (e.g., Apollo, Clay). See the project page for a full track breakdown and setup notes.

Compare before adopting

• Quality signals: 632 stars and a comprehensive README are good signs, but check recent commits for maintenance freshness.
• Alternatives: Compare with other outbound skill packs or custom-built prompts—consider whether the 30-skill structure fits your agent's complexity level.
• Workflow fit: The skills are opinionated (e.g., require client-profile.yaml). If your agent already has a different data schema, you'll need to adapt or selectively use only the copywriting skills.

Why it is worth tracking

This repo's momentum reflects a real pain point: cold email infrastructure is messy, and Claude Code skills provide a composable way to handle it. The active author, GrowthEngineX, appears to iterate based on campaign results, which bodes well for ongoing quality. If you're building any outbound agent, evaluate this pack now—the kickoff flow alone could save days of prompt engineering. Even if you don't adopt it wholesale, its structured approach to ICP and signal playbooks is worth borrowing.