How does the Cold Email Checker improve my outreach success rates?

This skill audits your drafts for factual accuracy against prospect data, flags CAN-SPAM legal requirements like opt-out links, and tightens your copy to ensure a single, clear call-to-action.

Do I need to provide external information about the prospect for the check to work?

Yes, you should provide the prospect's website text or LinkedIn profile summary alongside your draft so the agent can verify your claims against real evidence.

Which AI platforms or chatbots are compatible with this skill?

The skill is open-source (MIT License) and includes a 'prompt.md' file, making it compatible with any major LLM or chatbot that allows custom instructions or file uploads.

What exactly is included in the download package?

You receive the full source code via the GitHub repository, including the system prompts and a 'paste-in' version for chatbots that do not support direct skill installations.

How do I handle updates or new versions of this skill?

This skill is free and open-source; you can pull the latest updates directly from the Pro Skill Packs GitHub repository whenever the 'sales' folder is updated.

cold email checker

Example session with this skill installed

Check my cold email draft before I send it. Here is the draft and the prospect's page text.

Read your context and instructions
Compiled the cold email checker

Before: Draft opening: "Subject: Re: quick question about your growth ... I saw you just launched Hemingway Editor Plus last week and it looks amazing. I've helped 40 software companies double their signups ..."

After (skill output, from a real test run): Test run on a draft we wrote with common flaws, against text from a real public software homepage. Verdict, unedited: "Do not send. The email claims results you can't prove, says the prospect launched something last week when their page doesn't say so, and makes four asks." It marked the launch claim Unsupported, the results claim Needs proof, flagged "Re:" on a first message, listed the missing postal address, opt-out and ad disclosure, and returned a tightened version with [CONFIRM] markers.

Connects securely to your tools. The creator never sees your data.

About this skill

Checks a drafted cold email before it is sent. It tests every claim about the prospect against text you supply, flags claims about you that need proof, checks length, subject line and the single ask, checks the legal basics of commercial email (sender identity, postal address, opt-out), and returns a tightened version with unsupported claims removed. Use when someone has a cold or outreach email draft and says "check this email", "is this OK to send", "review my outreach", or pastes a draft with the prospect's website text.

Free and open source (MIT). Source and README: https://github.com/proskillpacks/skills/tree/main/skills/sales/cold-email-checker All our free skills: https://github.com/proskillpacks/skills . More from Pro Skill Packs: https://proskillpacks.github.io

Every skill in the folder ships with prompt.md, a paste-in version for chatbots that cannot load skills.

How to use

Skills on Agensi run inside your AI agent. Copy the prompt, paste it into your agent, and it connects to Agensi and installs this skill for you. If a payment is needed, your agent shows it to you first.

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Frequently Asked Questions

cold email checker