send-cold-email SKILL.md skillA
send-cold-email from hashgraph-online/awesome-codex-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hashgraph-online/awesome-codex-plugins/send-cold-email@git:20260928.e2bffc6Pins git:20260928.e2bffc6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hashgraph-online/awesome-codex-plugins
- Path
plugins/AddisonHoff/sendsets/skills/send-cold-email/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260928.e2bffc6, committed Sep 28, 2026
- Size
- 4,882 bytes
- Repository stars
- 1,537
- License
- Apache-2.0
Send cold email and run outbound email campaigns from an agent with Sendsets. Connect or check sending mailboxes, turn a lead list (CSV or inline) into a multi-step email sequence with follow-ups, validate merge fields, send a test, launch, and read and answer replies. Use when the user asks to send cold emails, email a list of prospects or leads, run an outreach or outbound sequence, or follow up with contacts by email.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Send cold email with Sendsets Sendsets is a cold email API for agents. Work through the Sendsets MCP tools when they are connected (`list_mailboxes`, `create_campaign_draft`, `add_campaign_step`, `add_contact`, `start_campaign`, `list_threads`, `send_reply`, ...). Otherwise use the `sendsets` CLI with `--json`. Both act on the same workspace. Not connected yet? Pick one: - MCP: `claude mcp add --transport http sendsets https://api.sendsetsapi.com/v1/mcp` (OAuth sign-in in the browser; other clients use the same URL) - CLI: install with `brew install addisonhoff/tap/sendsets` (macOS, Linux) or `scoop bucket add sendsets https://github.com/AddisonHoff/homebrew-tap` then `scoop install sendsets` (Windows). Without a package manager, download the archive for your platform and `checksums.txt` from https://github.com/AddisonHoff/sendsets-releases/releases/latest, check the archive against `checksums.txt`, and unpack the `sendsets` binary onto PATH. Then `sendsets login --hostname sendsetsapi.com` (it prints a code and URL for the user to approve) and `sendsets doctor --json` A new workspace is free for up to 10 mailboxes: https://app.sendsetsapi.com/auth/register ## 1. Senders …
Read the whole file at its exact version.
How to install
mdr add hashgraph-online/awesome-codex-plugins/send-cold-email@sha256:3d68978a26d4373dThe line at the top of this page pins the label git:20260928.e2bffc6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_2roxwtbekkf74ob5)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 28, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4882 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
hashgraph-online/awesome-codex-plugins · 1,537 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_2roxwtbekkf74ob5 GET https://markdownregistry.com/api/v1/resolve?ref=hashgraph-online/awesome-codex-plugins/send-cold-email GET https://markdownregistry.com/api/v1/blob/3d68978a26d4373d8d8e54b0ab3d89d5e8720e7784315994b92da26fff6f493a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.