How to build a Claude Cowork plugin

A plugin is a package with a slash command, a skill description, and an optional connector list. Five steps.

1. 1

   Pick one outcome

   Start with a single, clear outcome a non-technical user wants — e.g. 'draft a weekly client report'.

2. 2

   Scaffold the plugin

   Create a directory with plugin.json, commands/, and skills/. Define the slash command and the skill description.

3. 3

   Wire up connectors

   List the connectors the plugin needs. Keep it minimal — Notion and Drive cover 80% of cases.

4. 4

   Test in Cowork

   Install the plugin locally in Claude Cowork, run your slash command, iterate on the prompt.

5. 5

   Publish and submit

   Push to GitHub and submit via claudecoworkplugins.com/submit — we'll review and list it.