asgeirtj/system_prompts_leaks
Read or triage email, clean up an inbox, draft or send messages, and check delivery.
Set up this assistant's own [name].vellum.me domain and email address (one-time setup)
$ npx skills add vellum-ai/vellum-assistant --skill email-setup -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install vellum-ai/vellum-assistant email-setup --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/vellum-ai/vellum-assistant.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/email-setup .claude/skills/email-setup && 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 "email-setup" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/email-setup into .claude/skills/email-setup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "email-setup", 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/vellum-ai/vellum-assistant/tree/main/skills/email-setupType 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 vellum-ai/vellum-assistant --skill email-setup -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install vellum-ai/vellum-assistant email-setup --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/email-setup .agents/skills/email-setup && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "email-setup" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/email-setup into .agents/skills/email-setup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "email-setup", 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 vellum-ai/vellum-assistant --skill email-setup -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install vellum-ai/vellum-assistant email-setup --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/email-setup .cursor/skills/email-setup && 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 "email-setup" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/email-setup into .cursor/skills/email-setup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "email-setup", 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/vellum-ai/vellum-assistant.git --path skills/email-setup--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 vellum-ai/vellum-assistant --skill email-setup -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install vellum-ai/vellum-assistant email-setup --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/email-setup .gemini/skills/email-setup && 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 "email-setup" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/email-setup into .gemini/skills/email-setup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "email-setup", 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 vellum-ai/vellum-assistant email-setupInstalls 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 vellum-ai/vellum-assistant --skill email-setup -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/email-setup .github/skills/email-setup && 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 "email-setup" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/email-setup into .github/skills/email-setup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "email-setup", 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 vellum-ai/vellum-assistant --skill email-setup -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install vellum-ai/vellum-assistant email-setup --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/vellum-ai/vellum-assistant.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/email-setup .opencode/skills/email-setup && 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 "email-setup" agent skill from https://github.com/vellum-ai/vellum-assistant/tree/main/skills/email-setup into .opencode/skills/email-setup/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "email-setup", 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.
email-setupSet up this assistant's own [name].vellum.me domain and email address (one-time setup)
Email Setup is an agent skill from vellum-ai/vellum-assistant. Set up this assistant's own [name].vellum.me domain and email address (one-time setup)
Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Vellum personal assistants
The repository describes itself as: An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time. The licence is MIT.
5 steps, taken from the step headings in SKILL.md.
Read from SKILL.md and the folder at commit 844117a. 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 (its code samples are bash).
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.
Designed for Vellum personal assistants
From compatibility in the SKILL.md frontmatter.
Email Setup loads about 1k tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 506 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 vellum-ai/vellum-assistant at commit 844117a, republished under its MIT licence (© vellum-ai). 506 words, ~1,045 tokens.
.claude/skills/email-setup/SKILL.md (or your agent's skills folder).You are setting up your own custom domain and email address. This is a one-time operation — once you have a domain and email, you do not need to run this again.
Only proceed if the user explicitly asks you to create or set up your own (the assistant's) email address — e.g., "set up your email", "create your email address", "I want you to have your own email". Generic email requests like "send an email", "check my email", or "set up email" are about the user's personal email and should be handled by the Messaging skill, not this one. Do NOT proactively run this skill.
assistant domain status --json
assistant email status --jsonIf both commands show an active domain and email address, tell the user the existing address and stop.
If an email exists but no domain, the email was set up under the legacy shared domain — it still works. Ask the user if they want to keep it or migrate to a custom subdomain.
Each assistant gets its own subdomain (e.g. mybot.vellum.me). This must be registered before creating an email address.
assistant domain register <subdomain>For <subdomain>, use your assistant name (lowercased, alphanumeric, hyphens allowed). Check your identity from IDENTITY.md to determine your name. If you don't have a name yet, ask the user what subdomain they'd like.
If the domain is already registered, domain status will show it — skip to Step 3.
Once the domain is active, register your email username on that domain:
assistant email register <username>This creates <username>@<subdomain>.vellum.me. Use the same name as your subdomain for simplicity (e.g. mybot@mybot.vellum.me), or ask the user if they prefer a different local part.
assistant email status --jsonConfirm the address is active.
email register will fail if no domain is registered. Always check/register the domain before the email.If assistant domain register returns an error (e.g. subdomain taken), try a variation (append a number or use a nickname) and retry once. If it still fails, report the error to the user.
If assistant email register returns an error:
assistant domain register first.Once set up, the assistant has full email capabilities:
| Command | Description |
|---|---|
assistant email send <to...> -s "Subject" -b "Body" | Send an email (supports --cc, --bcc, --reply-to) |
assistant email list | List sent and received emails |
assistant email download <id> | Download a specific email |
assistant email status | Check email address status and usage |
assistant email unregister --confirm | Remove the email address |
© vellum-ai, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in skills/email-setup of vellum-ai/vellum-assistant.
Open the folder on GitHubat commit 844117a
Email Setup 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 |
|---|---|---|---|---|---|---|
| Email Setup this skillvellum-ai/vellum-assistant | 1.4k | — | ~1k | Automated safety check: Pass | MIT | |
| Emailasgeirtj/system_prompts_leaks | 69k | — | ~3.5k | Automated safety check: Pass | CC0-1.0 | |
| Emailscoreyhaines31/marketingskills | 54k | 1 repos | ~2.8k | Automated safety check: Pass | MIT | |
| Mailtrap Email Integrationaffaan-m/ECC | 276k | 1 repos | ~955 | Automated safety check: Pass | MIT | |
| Email Marketing Biblesickn33/agentic-awesome-skills | 47k | — | ~8.7k | Automated safety check: Pass | MIT | |
| Email Systemsdavila7/claude-code-templates | 32k | 2 repos | ~548 | Automated safety check: Pass | MIT |
asgeirtj/system_prompts_leaks
Read or triage email, clean up an inbox, draft or send messages, and check delivery.
coreyhaines31/marketingskills
When the user wants to create or optimize an email sequence, drip campaign, automated email flow, or lifecycle email program.
affaan-m/ECC
Guides agents through integrating transactional email sending via Mailtrap's Email API, including sandbox testing, domain verification, and API authentication.
sickn33/agentic-awesome-skills
Data-backed email marketing for AI agents: automation flows, deliverability triage, copy de-slopping, AI email design, ESP control via MCP with send gates and compliance.
davila7/claude-code-templates
Email has the highest ROI of any marketing channel. An agent skill from davila7/claude-code-templates.
LeoYeAI/openclaw-master-skills
When user asks to write email, draft reply, manage inbox, email template, follow up email, cold email, professional email, email subject line, thank you email, apology email, meeting request email…
vellum-ai/vellum-assistant
Create and configure a GitHub App so the assistant can push commits, open PRs, and comment under its own bot identity.
vellum-ai/vellum-assistant
Connect a Discord bot to the assistant via the Discord Gateway with guided application creation and intent configuration
vellum-ai/vellum-assistant
Create and configure a Sentry internal integration so the assistant can manage issues, alerts, and releases under its own identity
vellum-ai/vellum-assistant
Ingest a large dataset into memory as a skimmed map. An agent skill from vellum-ai/vellum-assistant.
vellum-ai/vellum-assistant
A skill your agent uses when the user wants to build, scaffold, ship, or edit a Vellum plugin that bundles multiple surfaces (hooks, tools, skills, and more) into one installable package.
vellum-ai/vellum-assistant
Connect a Slack app to the Vellum Assistant via Socket Mode.
Set up this assistant's own [name].vellum.me domain and email address (one-time setup). Email Setup is an agent skill from vellum-ai/vellum-assistant.
Run `npx skills add vellum-ai/vellum-assistant --skill email-setup -a claude-code`. Or copy the skill folder (skills/email-setup in vellum-ai/vellum-assistant) into .claude/skills/email-setup in your project. Claude Code loads it when a task matches its description.
Run `npx skills add vellum-ai/vellum-assistant --skill email-setup -a codex`. Or copy the skill folder (skills/email-setup in vellum-ai/vellum-assistant) into .agents/skills/email-setup 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 vellum-ai/vellum-assistant --skill email-setup -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/email-setup, .gemini/skills/email-setup, .github/skills/email-setup and .opencode/skills/email-setup in your project.
SKILL.md names no scripts, command-line tools or credentials: Email Setup is instructions for the agent only. Compatibility (from SKILL.md): Designed for Vellum personal assistants.
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.
Email Setup is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 1k tokens (SKILL.md is roughly 4.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Email Setup: Email (asgeirtj/system_prompts_leaks, 69k stars), Emails (coreyhaines31/marketingskills, 54k stars), Mailtrap Email Integration (affaan-m/ECC, 276k stars) and Email Marketing Bible (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
vellum-ai (a GitHub organization) maintains it in vellum-ai/vellum-assistant, which has 1,400 GitHub stars. The repository holds 108 skills in this directory. The repository was last updated on October 9, 2026.
Source: vellum-ai/vellum-assistant on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.