Build a 4-Agent Marketing Team in Claude Cowork (Each Agent Is One Text File)

AI saves you time, and then you spend it checking what the AI made. Workday asked 3,200 people who use AI at work, and 37% of the time it saved them went back into rework.

This is the starter kit from Claude Cowork 101. It is one folder with four agents in it, and each agent has one job. The analyst reads your numbers and writes a weekly pulse. The researcher finds the post behind the biggest move. The writer drafts next week’s post from what the researcher found. The distributor cuts that draft into emails, social posts and a sales one-pager.

Every agent leaves a file the next one reads, so you can open each step and check it in minutes. Publishing, sending and spending always wait for you.

The kit ships finished with sample numbers, so the whole team runs tonight. Week one on your own numbers takes about 40 minutes.

What’s in the download:

• CLAUDE.md, the context file every agent reads first, with the two approval lists at the bottom

• Four finished agent files for the analyst, the researcher, the writer and the distributor

• example-pulse.md, one annotated weekly pulse that teaches the analyst what a good one looks like

• Two sample sheets, three weeks of marketing numbers and the LinkedIn posts behind them

• BUILD_STEPS.md, the nine steps in order, with what each one should produce on the sample numbers

• PREREQUISITES.md and a README, so you know what to have open before step 1

You need the Claude desktop app with Cowork on your account. Scheduled runs read files on your computer, so it has to be awake with Claude open.

Built by Will Leatherman and the team at Catalyst, who’ve built content systems for 150+ B2B companies. Catalyst’s own content has run on seven agents with one job each since April 2026.