Sales Os
romangojiberryAI/gojiberryai-sales-os
A complete outbound sales department in one skill. An agent skill from romangojiberryAI/gojiberryai-sales-os.
Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling.
$ npx skills add coreyhaines31/marketingskills --skill cold-email -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install coreyhaines31/marketingskills cold-email --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cold-email .claude/skills/cold-email && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "cold-email" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email into .claude/skills/cold-email/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cold-email", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-emailType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add coreyhaines31/marketingskills --skill cold-email -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install coreyhaines31/marketingskills cold-email --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/cold-email .agents/skills/cold-email && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cold-email" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email into .agents/skills/cold-email/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cold-email", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add coreyhaines31/marketingskills --skill cold-email -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install coreyhaines31/marketingskills cold-email --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/cold-email .cursor/skills/cold-email && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "cold-email" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email into .cursor/skills/cold-email/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cold-email", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/coreyhaines31/marketingskills.git --path skills/cold-email--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add coreyhaines31/marketingskills --skill cold-email -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install coreyhaines31/marketingskills cold-email --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/cold-email .gemini/skills/cold-email && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "cold-email" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email into .gemini/skills/cold-email/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cold-email", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install coreyhaines31/marketingskills cold-emailInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add coreyhaines31/marketingskills --skill cold-email -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/cold-email .github/skills/cold-email && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "cold-email" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email into .github/skills/cold-email/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cold-email", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add coreyhaines31/marketingskills --skill cold-email -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install coreyhaines31/marketingskills cold-email --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/coreyhaines31/marketingskills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/cold-email .opencode/skills/cold-email && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "cold-email" agent skill from https://github.com/coreyhaines31/marketingskills/tree/main/skills/cold-email into .opencode/skills/cold-email/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cold-email", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
cold-emailWrite and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling.
Cold Email is an agent skill from coreyhaines31/marketingskills. Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling. Use when the user mentions "cold email," "cold outreach," "outbound," "prospecting email," "SDR emails," "follow-up sequence," "nobody's replying," "email deliverability," "sending domains," "warm up inboxes," "LinkedIn outreach," "connection request message," "multichannel sequence," "cadence," "cold call," "voicemail," "handle replies," "AI SDR," "teardown…
Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 13 other files, including reference files (for example `evals/evals.json`, `references/benchmarks.md` and `references/deliverability.md`).
It sits in Sales & Support, covering Cold outreach. It works with LinkedIn. The repository describes itself as: Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering. The licence is MIT.
5 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 1efedbc. It shows what the files ask for, not the result of running them.
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Cold Email loads about 3.1k tokens when it runs, and up to ~17k if it reads all its reference files. Until then it costs about 224 tokens; SKILL.md has 1,393 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from coreyhaines31/marketingskills at commit 1efedbc, republished under its MIT licence (© coreyhaines31). 1,393 words, ~3,125 tokens.
.claude/skills/cold-email/SKILL.md (or your agent's skills folder). This skill also uses 11 other files; get the full folder from GitHub.You are an expert in cold outbound. Your goal is to write emails that sound like they came from a sharp, thoughtful human — not a sales machine following a template — and to make sure they reach the inbox, work alongside the other channels, and turn replies into meetings.
Check for product marketing context first:
If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.
Understand the situation (ask if not provided):
Work with whatever the user gives you. If they have a strong signal and a clear value prop, that's enough to write. Don't block on missing inputs — use what you have and note what would make it stronger.
The email should read like it came from someone who understands their world and isn't trying to sell them something. Use contractions. Read it aloud. If it sounds like marketing copy, rewrite it.
Cold email is ruthlessly short. If a sentence doesn't move the reader toward replying, cut it. The best cold emails feel like they could have been shorter, not longer.
If you remove the personalized opening and the email still makes sense, the personalization isn't working. The observation should naturally lead into why you're reaching out.
See personalization.md for the 4-level system and research signals.
The reader should see their own situation reflected back. "You/your" should dominate over "I/we." Don't open with who you are or what your company does.
Interest-based CTAs ("Worth exploring?" / "Would this be useful?") beat meeting requests. One CTA per email. Make it easy to say yes with a one-line reply.
The target voice: A smart colleague who noticed something relevant and is sharing it. Conversational but not sloppy. Confident but not pushy.
Calibrate to the audience:
What it should NOT sound like:
There's no single right structure. Choose a framework that fits the situation, or write freeform if the email flows naturally without one.
Common shapes that work:
For the full catalog of frameworks with examples, see frameworks.md.
Short, boring, internal-looking. The subject line's only job is to get the email opened.
See subject-lines.md for the full data.
Each follow-up should add something new — a different angle, fresh proof, a useful resource. "Just checking in" gives the reader no reason to respond.
See follow-up-sequences.md for cadence, angle rotation, and breakup email templates.
Copy only matters if it reaches the inbox. Before the first send:
Domain and mailbox math, the Google, Yahoo, and Microsoft rules, monitoring, and stop-loss thresholds are in deliverability.md.
Most outbound that works in 2026 runs on more than one channel:
Classify every reply (positive, information request, objection, not now, referral, out of office, unsubscribe), answer positive replies within minutes, and book with two proposed times plus a link. What an agent can handle alone and what needs a human is in reply-handling.md.
Before presenting, gut-check:
The references contain performance data if you need to make informed choices:
Use this data to inform your writing — not as a checklist to satisfy.
For setup, see the tools registry, including its sales outbound quick start. Tools most used with this skill:
| Job | Tools | Guides |
|---|---|---|
| Email sending and sequences | Instantly, lemlist, Outreach | instantly.md, lemlist.md, outreach.md |
| LinkedIn steps | HeyReach, lemlist (both carry LinkedIn terms-of-service risk) | heyreach.md |
| Verification before send | Truelist, Hunter | truelist.md, hunter.md |
| CRM and reply logging | HubSpot, Attio, Close | attio.md, close.md |
| Booking | Calendly, SavvyCal | calendly.md, savvycal.md |
Instantly's webhooks (reply received, lead interested, bounced, unsubscribed) are the simplest way to drive the cross-channel stop and reply triage from an agent.
© coreyhaines31, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 11 other files (references) in skills/cold-email of coreyhaines31/marketingskills.
Open the folder on GitHubat commit 1efedbc
Cold Email next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Cold Email this skillcoreyhaines31/marketingskills | 54k | — | ~3.1k | Automated safety check: Pass | MIT | |
| Sales OsromangojiberryAI/gojiberryai-sales-os | 139 | — | ~2k | Automated safety check: Pass | MIT | |
| Cold Outreach Personalizeraiskilloftheweek/claude-ai-skill-of-the-week | 149 | — | ~2.6k | Automated safety check: Pass | None | |
| B2B Lead Generationminhnv0807/ai-business-skills | 609 | — | ~1.2k | Automated safety check: Pass | MIT | |
| Cold Outreach Sequence BuilderBrianRWagner/ai-marketing-claude-code-skills | 441 | — | ~1.9k | Automated safety check: Pass | None | |
| Outreachyc-software/recruiting | 115 | — | ~3k | Automated safety check: Notes | None |
romangojiberryAI/gojiberryai-sales-os
A complete outbound sales department in one skill. An agent skill from romangojiberryAI/gojiberryai-sales-os.
aiskilloftheweek/claude-ai-skill-of-the-week
Generates hyper-personalized cold outreach messages (email, LinkedIn DM, connection request) from raw prospect research.
minhnv0807/ai-business-skills
Plans B2B pipeline work from ICP definition and prospecting through lead scoring, outbound sequences, sales assets and MQL to SQL handoff, aiming at qualified pipeline.
BrianRWagner/ai-marketing-claude-code-skills
Builds researched LinkedIn and email outreach for prospects, from a single message to a multi-prospect system, with personalization graded by the signals found.
yc-software/recruiting
Draft personalized cold outreach to a candidate the hiring manager hasn't contacted yet.
explorium-ai/gtm-skills
Account research skill for Claude Code and Codex: generate a high-signal company intelligence brief including firmographics, technographics, funding history, hiring signals, business events, recent…
coreyhaines31/marketingskills
When the user wants help creating, scheduling, or optimizing social media content for LinkedIn, Twitter/X, Instagram, TikTok, or Facebook, or wants to do social listening and engagement triage.
coreyhaines31/marketingskills
When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program.
coreyhaines31/marketingskills
When the user wants to create, optimize, or analyze a referral program, affiliate program, or word-of-mouth strategy.
coreyhaines31/marketingskills
When the user wants to audit or optimize an App Store or Google Play listing.
coreyhaines31/marketingskills
When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email program.
coreyhaines31/marketingskills
When the user wants to create or optimize in-app paywalls, upgrade screens, upsell modals, or feature gates.
Works with
Categories
Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling. Cold Email is an agent skill from coreyhaines31/marketingskills. Write and run B2B cold outbound that gets replies, from cold emails and follow-ups to sending setup, LinkedIn, multichannel cadences, and reply handling.
Cold Email fits situations like: the user mentions cold email; prospecting email; follow-up sequence; nobodys replying.
Run `npx skills add coreyhaines31/marketingskills --skill cold-email -a claude-code`. Or copy the skill folder (skills/cold-email in coreyhaines31/marketingskills) into .claude/skills/cold-email in your project. Claude Code loads it when a task matches its description.
Run `npx skills add coreyhaines31/marketingskills --skill cold-email -a codex`. Or copy the skill folder (skills/cold-email in coreyhaines31/marketingskills) into .agents/skills/cold-email in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add coreyhaines31/marketingskills --skill cold-email -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cold-email, .gemini/skills/cold-email, .github/skills/cold-email and .opencode/skills/cold-email in your project.
SKILL.md names no scripts, command-line tools or credentials: Cold Email is instructions for the agent only.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
Cold Email is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 3.1k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 13k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Cold Email: Sales Os (romangojiberryAI/gojiberryai-sales-os, 139 stars), Cold Outreach Personalizer (aiskilloftheweek/claude-ai-skill-of-the-week, 149 stars), B2B Lead Generation (minhnv0807/ai-business-skills, 609 stars) and Cold Outreach Sequence Builder (BrianRWagner/ai-marketing-claude-code-skills, 441 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
coreyhaines31 (a GitHub user) maintains it in coreyhaines31/marketingskills, which has 53,967 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on October 8, 2026.
Source: coreyhaines31/marketingskills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.