Mailtrap Sending Emails
sickn33/agentic-awesome-skills
Configure or troubleshoot Mailtrap live email sending with Email API, SMTP, transactional streams, bulk streams, or batches.
Upload finalized emails for sequencing and sending. An agent skill from extruct-ai/gtm-skills.
No licenceAuto-check passed
Install Campaign Sending
$ npx skills add extruct-ai/gtm-skills --skill campaign-sending -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install extruct-ai/gtm-skills campaign-sending --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/extruct-ai/gtm-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/campaign-sending .claude/skills/campaign-sending && 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 "campaign-sending" agent skill from https://github.com/extruct-ai/gtm-skills/tree/main/skills/campaign-sending into .claude/skills/campaign-sending/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "campaign-sending", 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/extruct-ai/gtm-skills/tree/main/skills/campaign-sendingType 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 extruct-ai/gtm-skills --skill campaign-sending -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install extruct-ai/gtm-skills campaign-sending --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/extruct-ai/gtm-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/campaign-sending .agents/skills/campaign-sending && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "campaign-sending" agent skill from https://github.com/extruct-ai/gtm-skills/tree/main/skills/campaign-sending into .agents/skills/campaign-sending/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "campaign-sending", 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 extruct-ai/gtm-skills --skill campaign-sending -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install extruct-ai/gtm-skills campaign-sending --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/extruct-ai/gtm-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/campaign-sending .cursor/skills/campaign-sending && 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 "campaign-sending" agent skill from https://github.com/extruct-ai/gtm-skills/tree/main/skills/campaign-sending into .cursor/skills/campaign-sending/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "campaign-sending", 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/extruct-ai/gtm-skills.git --path skills/campaign-sending--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 extruct-ai/gtm-skills --skill campaign-sending -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install extruct-ai/gtm-skills campaign-sending --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/extruct-ai/gtm-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/campaign-sending .gemini/skills/campaign-sending && 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 "campaign-sending" agent skill from https://github.com/extruct-ai/gtm-skills/tree/main/skills/campaign-sending into .gemini/skills/campaign-sending/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "campaign-sending", 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 extruct-ai/gtm-skills campaign-sendingInstalls 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 extruct-ai/gtm-skills --skill campaign-sending -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/extruct-ai/gtm-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/campaign-sending .github/skills/campaign-sending && 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 "campaign-sending" agent skill from https://github.com/extruct-ai/gtm-skills/tree/main/skills/campaign-sending into .github/skills/campaign-sending/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "campaign-sending", 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 extruct-ai/gtm-skills --skill campaign-sending -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install extruct-ai/gtm-skills campaign-sending --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/extruct-ai/gtm-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/campaign-sending .opencode/skills/campaign-sending && 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 "campaign-sending" agent skill from https://github.com/extruct-ai/gtm-skills/tree/main/skills/campaign-sending into .opencode/skills/campaign-sending/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "campaign-sending", 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.
Facts
- Skill name
campaign-sending- GitHub stars
- 109
- Token cost
- ~1.2k tokens
- SKILL.md length
- 484 words
- Files
- 2 (incl. references)
- Skills in repo
- 20
- Repo updated
- First seen
- Licence
- None found
At a glance
Upload finalized emails for sequencing and sending. An agent skill from extruct-ai/gtm-skills.
- Works in 8 steps: Confirm provider and learn API → Read and analyze final emails → Check DNC list → …
- : upload to instantly
- SKILL.md covers Environment, Workflow, After Sending: Feedback Loop and API Reference
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Campaign Sending is an agent skill from extruct-ai/gtm-skills. Upload finalized emails for sequencing and sending. Maps fields to lead schema, creates or finds campaigns, uploads leads with dedup, and provides a pre-send verification checklist. Triggers on: "upload to instantly", "run instantly", "send emails", "instantly campaign", "push to instantly", "start campaign", "load into instantly".
Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/instantly-api.md`).
When your agent uses it
- : upload to instantly
- Instantly campaign
- Push to instantly
- Load into instantly
Example prompts
- “upload to instantly”
- “run instantly”
- “send emails”
- “/campaign-sending”
Workflow steps
8 steps, taken from the step headings in SKILL.md.
- Confirm provider and learn API
- Read and analyze final emails
- Check DNC list
- Create or find campaign
- Map fields to provider lead schema
- Upload leads in batches
- Pre-send verification checklist
- Remind about manual activation
What it can do on your machine
Read from SKILL.md and the folder at commit 34406cb. It shows what the files ask for, not the result of running them.
Tool permissions
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.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Campaign Sending loads about 1.2k tokens when it runs, and up to ~2.5k if it reads all its reference files. Until then it costs about 88 tokens; SKILL.md has 484 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.
Safety
Auto-check passed
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.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 484 words (~1,164 tokens).
“Upload finalized emails for sequencing and sending.”
- name
- campaign-sending
Files
SKILL.md and 1 other file (references) in skills/campaign-sending of extruct-ai/gtm-skills.
- SKILL.md
- references/instantly-api.md
Open the folder on GitHubat commit 34406cb
Compare with similar skills
Campaign Sending 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 |
|---|---|---|---|---|---|---|
| Campaign Sending this skillextruct-ai/gtm-skills | 109 | — | ~1.2k | Automated safety check: Pass | None | |
| Mailtrap Sending Emailssickn33/agentic-awesome-skills | 47k | 1 repos | ~2.8k | Automated safety check: Pass | MIT | |
| Emailscoreyhaines31/marketingskills | 54k | 1 repos | ~2.8k | Automated safety check: Pass | MIT | |
| Send Email Campaignindranilbanerjee/digital-marketing-pro | 859 | 1 repos | ~3.1k | Automated safety check: Pass | MIT | |
| Email Sequencesrampstackco/claude-skills | 941 | — | ~2.6k | Automated safety check: Pass | MIT | |
| Emailasgeirtj/system_prompts_leaks | 69k | — | ~3.5k | Automated safety check: Pass | CC0-1.0 |
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Questions about Campaign Sending
What does Campaign Sending do?
Upload finalized emails for sequencing and sending. An agent skill from extruct-ai/gtm-skills. Campaign Sending is an agent skill from extruct-ai/gtm-skills. Upload finalized emails for sequencing and sending.
When should I use Campaign Sending?
Campaign Sending fits situations like: : upload to instantly; instantly campaign; push to instantly; load into instantly.
How do I install Campaign Sending in Claude Code?
Run `npx skills add extruct-ai/gtm-skills --skill campaign-sending -a claude-code`. Or copy the skill folder (skills/campaign-sending in extruct-ai/gtm-skills) into .claude/skills/campaign-sending in your project. Claude Code loads it when a task matches its description.
How do I install Campaign Sending in Codex?
Run `npx skills add extruct-ai/gtm-skills --skill campaign-sending -a codex`. Or copy the skill folder (skills/campaign-sending in extruct-ai/gtm-skills) into .agents/skills/campaign-sending in your project. Codex loads it when a task matches its description.
Can I use Campaign Sending in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add extruct-ai/gtm-skills --skill campaign-sending -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/campaign-sending, .gemini/skills/campaign-sending, .github/skills/campaign-sending and .opencode/skills/campaign-sending in your project.
What does Campaign Sending need to run?
SKILL.md names no scripts, command-line tools or credentials: Campaign Sending is instructions for the agent only.
Does Campaign Sending access the network?
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.
Is Campaign Sending safe to install?
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.
What licence does Campaign Sending use?
No licence was found for Campaign Sending or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Campaign Sending use?
About 1.2k tokens (SKILL.md is roughly 4.7k 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 1.3k tokens, read only when the agent opens those files.
What are the alternatives to Campaign Sending?
Skills that share tags, products or a category with Campaign Sending: Mailtrap Sending Emails (sickn33/agentic-awesome-skills, 47k stars), Emails (coreyhaines31/marketingskills, 54k stars), Send Email Campaign (indranilbanerjee/digital-marketing-pro, 859 stars) and Email Sequences (rampstackco/claude-skills, 941 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Campaign Sending?
extruct-ai (a GitHub organization) maintains it in extruct-ai/gtm-skills, which has 109 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on September 28, 2026.
Source: extruct-ai/gtm-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.