--- title: "Cold Email Claude Skills (Free, Open Source) | Prosyo" description: "Free Cold Email skills for Claude and AI agents. Cold emails people answer: first touches, full sequences, subject lines, personalised first lines, follow-ups, break-up emails and honest copy…" url: "https://prosyo.com/fr/gtm-skills/category/cold-email/" image: "https://prosyo.com/wp-content/uploads/2026/10/cropped-Prosyo-Icon-Transparent-1.png" language: "fr" --- [GTM Skills](https://prosyo.com/fr/gtm-skills/)Cold Email 7 free skills · open source # Claude skills for cold email copywriting Cold emails people answer: first touches, full sequences, subject lines, personalised first lines, follow-ups, break-up emails and honest copy reviews. - 69 skills - 14 categories - Works in 40+ agents - Human approval built in Works in - Claude Code - Claude.ai - Codex - Cursor - Gemini CLI - Windsurf - GitHub Copilot - Cline Most useful first ## The cold email skills teams install first See all 7 [Cold Email**Cold email writer**You need to write a B2B cold email that gets replies.](https://prosyo.com/fr/gtm-skills/cold-email-writer/) - Three email variants - Subject lines - Why each angle works Open skill [Cold Email**Break-up email**You want to close the loop with a prospect who has not replied after several touches,…Open skill](https://prosyo.com/fr/gtm-skills/breakup-email/)[Cold Email**Cold email sequence**You need a complete cold email sequence (cadence) for a campaign.Open skill](https://prosyo.com/fr/gtm-skills/cold-email-sequence/)[Cold Email**Email copy review**You want an honest review of outreach copy before sending.Open skill](https://prosyo.com/fr/gtm-skills/email-copy-review/)[Cold Email**First line personalization**You need personalised first lines (icebreakers) for cold emails or LinkedIn messages at scale.Open skill](https://prosyo.com/fr/gtm-skills/first-line-personalization/) Install ## Every skill, one line away Add the whole library to Claude Code as a plugin, pull a single skill into Codex or Cursor, or download a .zip for Claude.ai. Skills update as the library grows. - Claude Code - Claude.ai - Codex - Cursor - Gemini CLI - Windsurf - GitHub Copilot - Cline [Star on GitHub](https://github.com/prosyo-ai/gtm-skill) [Download all (.zip)](https://github.com/prosyo-ai/gtm-skill/archive/refs/heads/main.zip) `/plugin marketplace add prosyo-ai/gtm-skill` `/plugin install gtm-skills@prosyo` Installs every skill as one plugin and keeps them updated. Cold Email ## All cold email skills Category - [All skills69](https://prosyo.com/fr/gtm-skills/#skills) - [Research & ICP6](https://prosyo.com/fr/gtm-skills/category/research/) - [Prospecting6](https://prosyo.com/fr/gtm-skills/category/prospecting/) - [Signals6](https://prosyo.com/fr/gtm-skills/category/signals/) - [Cold Email7](https://prosyo.com/fr/gtm-skills/category/cold-email/) - [LinkedIn6](https://prosyo.com/fr/gtm-skills/category/linkedin/) - [Multichannel4](https://prosyo.com/fr/gtm-skills/category/multichannel/) - [Deliverability4](https://prosyo.com/fr/gtm-skills/category/deliverability/) - [Replies & Meetings5](https://prosyo.com/fr/gtm-skills/category/replies-meetings/) - [Deals & Pipeline6](https://prosyo.com/fr/gtm-skills/category/deals/) - [Positioning & Messaging4](https://prosyo.com/fr/gtm-skills/category/positioning/) - [RevOps & Analytics4](https://prosyo.com/fr/gtm-skills/category/revops/) - [Content, SEO & AEO4](https://prosyo.com/fr/gtm-skills/category/content-seo/) - [ABM & Expansion4](https://prosyo.com/fr/gtm-skills/category/abm-expansion/) - [Enablement & Leadership3](https://prosyo.com/fr/gtm-skills/category/enablement/) Built for Start with the guardrails Install GTM global rules first. It keeps every other skill honest: you approve sends, nothing gets invented. [See the rules](https://prosyo.com/fr/gtm-skills/gtm-global-rules/) Filter skills 7 skills Sort [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/)Popular ### [Cold email writer](https://prosyo.com/fr/gtm-skills/cold-email-writer/) You need to write a B2B cold email that gets replies. **You get** Three email variants · Subject lines · Why each angle works `--skill cold-email-writer`4 min read [Open Cold email writer](https://prosyo.com/fr/gtm-skills/cold-email-writer/) [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/) ### [Break-up email](https://prosyo.com/fr/gtm-skills/breakup-email/) You want to close the loop with a prospect who has not replied after several touches, or a deal that went silent. **You get** Break-up email · One-word reply option · Nurture next step `--skill breakup-email`2 min read [Open Break-up email](https://prosyo.com/fr/gtm-skills/breakup-email/) [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/) ### [Cold email sequence](https://prosyo.com/fr/gtm-skills/cold-email-sequence/) You need a complete cold email sequence (cadence) for a campaign. **You get** Full sequence with timing · All emails and subject lines · Exit rules `--skill cold-email-sequence`4 min read [Open Cold email sequence](https://prosyo.com/fr/gtm-skills/cold-email-sequence/) [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/) ### [Email copy review](https://prosyo.com/fr/gtm-skills/email-copy-review/) You want an honest review of outreach copy before sending. **You get** Scorecard · Line-by-line notes · Rewrite `--skill email-copy-review`3 min read [Open Email copy review](https://prosyo.com/fr/gtm-skills/email-copy-review/) [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/) ### [First line personalization](https://prosyo.com/fr/gtm-skills/first-line-personalization/) You need personalised first lines (icebreakers) for cold emails or LinkedIn messages at scale. **You get** One opener per lead · Source per line · Quality grade `--skill first-line-personalization`2 min read [Open First line personalization](https://prosyo.com/fr/gtm-skills/first-line-personalization/) [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/) ### [Follow-up email writer](https://prosyo.com/fr/gtm-skills/follow-up-email-writer/) You need to follow up after no reply, after a meeting, after a proposal or after a prospect went quiet. **You get** Diagnosis · Follow-up email · Next step if no reply `--skill follow-up-email-writer`2 min read [Open Follow-up email writer](https://prosyo.com/fr/gtm-skills/follow-up-email-writer/) [Cold Email](https://prosyo.com/fr/gtm-skills/category/cold-email/) ### [Subject line writer](https://prosyo.com/fr/gtm-skills/subject-line-writer/) You need cold email subject lines that get opened and do not look like marketing. **You get** Subject line options by pattern · Risk notes · Test plan `--skill subject-line-writer`2 min read [Open Subject line writer](https://prosyo.com/fr/gtm-skills/subject-line-writer/) Global rules ## Safe to point at your real inbox and CRM Every skill follows the same eight rules, and every contribution is reviewed against them before it is published. 1. **You approve before anything goes out** Skills research, score and draft on their own. Sending, scheduling, deleting and bulk changes wait for your yes. 2. **Nothing is made up** Every personal line has a source. Customer names and results come only from what you approve. 3. **Respect for the buyer** Opt-outs honoured everywhere, privacy rules followed, and no creepy references to what someone viewed. 4. **Your domains stay healthy** Safe sending volumes, ramp gates on bounces and complaints, and no tricks that dodge spam filters. 5. **Honest numbers** Sample sizes stated, assumptions labelled, and no winners called on noise. 6. **Works on any stack** Skills describe the work, not a vendor’s buttons, so they run with whatever CRM and tools you use. 7. **Your data stays yours** No skill sends prospect or customer data anywhere you do not own, and none asks for passwords. 8. **Judgment, not checklists** Each skill spells out what good looks like and the common mistake, so the output reads like your best rep wrote it. [Read the full rules on GitHub](https://github.com/prosyo-ai/gtm-skill/blob/main/GLOBAL_RULES.md) Open source ## Have a play that works? Share it as a skill. Paste this into Claude, Codex or any agent. It interviews you about your play, writes the skill in the house format, checks it and opens the pull request. Once it is merged, it shows up here with your name on it. [Contribute on GitHub](https://github.com/prosyo-ai/gtm-skill/blob/main/CONTRIBUTING.md) [Request a skill](https://github.com/prosyo-ai/gtm-skill/issues/new?template=request-skill.yml) Prompt for your agent Fetch https://raw.githubusercontent.com/prosyo-ai/gtm-skill/main/AGENTS.md and follow its submission flow. Interview me about my GTM play (the real numbers, rubrics and examples), draft it in their format with reference pages, validate it and open the pull request. FAQ ## Questions about cold email skills Installing, safety, licensing and how to add your own. **Want these plays running every day?** Penny, the Prosyo AI SDR, runs research, outreach and replies for you, and you approve what matters. [Meet Penny](https://prosyo.com/fr/penny/) **What are Cold Email skills for Claude?** Cold emails people answer: first touches, full sequences, subject lines, personalised first lines, follow-ups, break-up emails and honest copy reviews. Each one is a SKILL.md file that teaches an AI agent how a strong operator runs the play, including what good output looks like. **How do I install the Cold Email skills?** In Claude Code, run /plugin marketplace add prosyo-ai/gtm-skill and /plugin install gtm-skills@prosyo to get every skill. For one skill in any agent, run npx skills add prosyo-ai/gtm-skill –skill followed by the skill name shown on its card. **Are these skills free?** Yes. Every skill is free and open source under the MIT license. Use them, change them and share them. **Will an agent send anything without me?** No. The skills research, score and draft freely, and wait for your approval before anything is sent, scheduled or changed in bulk. ## Skills draft the play. Penny runs it. Penny, the Prosyo AI SDR, finds your buyers, writes from what they actually posted, follows up on LinkedIn and email and lands every reply in one inbox with an answer ready. 7 days free, no card. [Start free — 7 days](https://app.prosyo.com/) [See pricing](https://prosyo.com/pricing/) - 7 days free - No card required - Cancel in two clicks