Cowork Plugin Customizer

anthropics/knowledge-work-pluginsOfficial

This handles the full workflow of setting up or tweaking a Claude Code plugin for your organization's specific tools and processes. It intelligently detects whether you're configuring a fresh template (by looking for placeholder markers), making targeted changes to one section, or doing a general overhaul. The skill searches your company's Slack, docs, and email to auto-fill details like tool names and workspace IDs, then walks you through a todo list in plain language. It connects relevant MCPs for whatever tools you configure and packages everything as a ready to install .plugin file. Only works in Cowork desktop mode since it needs direct filesystem access to your mounted plugin directories.

skills.sh installs: 2.9K
GitHub stars: 35.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add anthropics/knowledge-work-plugins --skill cowork-plugin-customizer --agent claude-code

Installs into .claude/skills of the current project.

Files

Cowork Plugin Customization

Customize a plugin for a specific organization — either by setting up a generic plugin template for the first time, or by tweaking and refining an already-configured plugin.

Finding the plugin: To find the plugin's source files, run find mnt/.local-plugins mnt/.plugins -type d -name "*<plugin-name>*" to locate the plugin directory, then read its files to understand its structure before making changes. If you cannot find the plugin directory, the user is likely running this conversation in a remote container. Abort and let them know: "Customizing plugins is currently only available in the desktop app's Cowork mode."

Determining the Customization Mode

After locating the plugin, check for ~~-prefixed placeholders: grep -rn '~~\w' /path/to/plugin --include='*.md' --include='*.json'

Default rule: If ~~ placeholders exist, default to Generic plugin setup unless the user explicitly asks to customize a specific part of the plugin.

SKILL.md on GitHub

Details

Repository: github.com/anthropics/knowledge-work-plugins
First seen: Apr 16, 2026