How Keanan Koppenhaver automates newsletter broadcasts with a Claude Code skill

The problem

After publishing, he had to build and send a Kit broadcast each time. He describes it as a repetitive workflow with clear steps that he was doing inconsistently.

The blueprint

1. He used Claude Code’s built-in skill-creator to define a “send a broadcast” skill.
2. Claude read Kit’s API documentation, found the endpoints and wrote a Python script. He says he did not write any of it.
3. The script takes a subject line, HTML content and a send time, and creates a scheduled broadcast in Kit.
4. A dry-run mode lets him test without emailing the list.
5. Targeting is built in: only subscribers tagged CC4M, excluding anyone still in the welcome sequence.
6. He published the skill, script and email template so others can adapt them. It needs a Kit API key.

Stated results

None stated.

Caveats

• X: @KKoppenhaver (verified 2026-10-13: profile links claudecodeformarketers.com).

Sources

• https://claudecodeformarketers.com/blog/automate-kit-broadcasts-with-skills/
• https://github.com/kkoppenhaver/cc-skills