Is the Emails skill free?

Yes. The skill itself is free from coreyhaines31/marketingskills. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Emails SkillProof Score?

9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.

How do I install Emails?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Emails with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Emails

Day-by-day timed lifecycle email sequences (welcome, nurture, re-engagement) with a standardized per-email output schema.

by coreyhaines31 · coreyhaines31/marketingskills

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 9.2/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · a9b31c7

Timed a welcome sequence day-by-day (day 1-2, day 3-4, day 5-6...) against its own named template instead of a vague 'send a few emails' — but the Tool Integrations section for actually wiring up Mailchimp/SendGrid/Customer.io points at ../../tools/REGISTRY.md, which doesn't exist outside the full repo checkout. (Listed here under our older name; the skill's own name is "Emails".)

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 8/10
Docs & honesty 5/5

What Emails does

Designs multi-email automated flows (welcome, lead nurture, re-engagement, onboarding, win-back) with day-precise timing templates, one-CTA-per-email discipline, and a structured Subject/Preview/Body/CTA output format plus a metrics plan. The 'Tool Integrations' section for wiring up Mailchimp/SendGrid/Customer.io/Resend/Kit points at a repo-level tools/ folder not included in a standalone copy — sequence design itself works fully without it. Actual skill folder is named 'emails,' not 'email-sequences.'

How to install Emails

git clone https://github.com/coreyhaines31/marketingskills
cd marketingskills
mkdir -p ~/.claude/skills
cp -r skills/emails ~/.claude/skills/email-sequences

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger Emails

/email-sequences Day-by-day timed lifecycle email sequences (welcome, nurture, re-engagement) with a standardized per-email output schema.

It also activates on plain-language prompts like these:

Write a 5-email onboarding sequence for new signups
Draft a win-back sequence for churned customers
Build a nurture sequence with proper sequencing logic

Appears in

Skills for Marketers

Frequently asked questions

Is the Emails skill free?: Yes. The skill itself is free from coreyhaines31/marketingskills. SkillProof publishes the install command and an independent test verdict at no cost.
Does Emails work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Works with setup. Timed a welcome sequence day-by-day (day 1-2, day 3-4, day 5-6...) against its own named template instead of a vague 'send a few emails' — but the Tool Integrations section for actually wiring up Mailchimp/SendGrid/Customer.io points at ../../tools/REGISTRY.md, which doesn't exist outside the full repo checkout. (Listed here under our older name; the skill's own name is "Emails".)
What is the Emails SkillProof Score?: 9.2/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 5/5.
How do I install Emails?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Emails with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.