send-cold-email
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
Install / Use
npx skills add hashgraph-online/awesome-codex-plugins --skill send-cold-emailInstalls into whichever agent you are using.
SKILL.md
Installable skill definition
Quality Score
Category
CommunicationSupported Platforms
Our assessment of send-cold-email
send-cold-email scores 85/100 on our quality scale, 272nd of 410 Communication skills we index.
We have not analysed the SKILL.md file itself yet, so the content part of this score is an estimate until our crawler reaches it.
With 1,075 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated 8 days ago, so send-cold-email is actively maintained.
- It is released under the Apache-2.0 license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
send-cold-email compared with similar skills
All 4 of these similar skills score higher than send-cold-email; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| send-cold-email (this skill)by hashgraph-online | 85 | 1.1k | 8d ago | SKILL.md |
| Agent-Reachby Panniantong | 100 | 88.1k | 17d ago | CLAUDE.md |
| headroomby headroomlabs-ai | 100 | 74.3k | today | CLAUDE.md |
| rufloby ruvnet | 100 | 73.7k | today | CLAUDE.md |
| CowAgentby zhayujie | 100 | 47.2k | today | CLAUDE.md |
Frequently asked questions
- How do I install send-cold-email?
- Run
npx skills add hashgraph-online/awesome-codex-plugins --skill send-cold-email. The install tabs above show the steps for each supported agent. - Which AI agents does send-cold-email work with?
- It is written for Universal, as a SKILL.md file. Other agents that read the same format can often use it too.
- Is send-cold-email safe to use?
- It is Apache-2.0-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is send-cold-email still maintained?
- The repository was last updated 8 days ago, so send-cold-email is actively maintained.
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Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.