> ## Documentation Index
> Fetch the complete documentation index at: https://claude.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Install plugins

> Add packaged skills, connectors, and agents to Cowork from the plugin marketplace or a file.

A plugin is a package that extends what Claude can do in Cowork. Installing one can add skills, MCP connectors, subagents, commands, or hooks in a single step. Plugins come from the marketplace, from your organization, or from a file you upload.

A plugin you install is saved to your account, so its skills and connectors are also available in chat and in Claude Code. [Plugins](https://claude.com/docs/plugins/overview.md) covers what each surface loads; this page covers the Cowork side.

To get started, [install a plugin](#install-a-plugin) from **Customize**, or [add a Git repository as a marketplace](#use-a-git-repository-as-a-marketplace) to share plugins without publishing them.

## What a plugin can contain

A plugin can contain any combination of the following components.

| Component | What it adds |
| - | - |
| Skills | Reusable instructions that teach Claude a workflow |
| Connectors | MCP servers that give Claude access to an external service |
| Agents | Specialized subagents Claude can delegate to |
| Hooks | Scripts that run at defined points in a session |

After installing, open the plugin to see what it provides. Skills and agents appear as tabs; connectors and hooks have their own pages.

## Install a plugin

You browse, install, and upload plugins from the **Plugins** page. Open **Customize** in the sidebar, then select **Plugins**.

**1. Browse the marketplace**

Select **Discover** to see available plugins. The default marketplace is
Anthropic's official catalog; you can add other marketplaces by URL.

**2. Install**

Select a plugin and click **Install**. Installing doesn't add or sign you in
to any connector. If the plugin includes connectors, open its **Connectors**
tab afterward to add or connect each one.

**3. Review components**

Open the installed plugin to see its skills, connectors, agents, and hooks.
Select **Disable plugin** to turn the whole plugin off, and connect or
disconnect each connector on its own from the **Connectors** tab.

To install from a file instead, select the upload option on the Plugins page and select the plugin package.

## Use a Git repository as a marketplace

A Git repository that contains plugin packages can serve as a marketplace, which lets you share plugins without publishing to the public catalog. For a marketplace you add yourself, repositories on GitHub, including GitHub Enterprise, are supported, and public repositories on GitLab and Bitbucket also work. To distribute plugins to everyone in a Team or Enterprise organization, an Owner syncs the repository from organization settings instead, as [Manage plugins for your organization](https://claude.com/docs/plugins/admin.md#add-your-own-plugins) describes.

**1. Add the repository**

On the Plugins page, select **Add marketplace** and enter the repository's
URL. Cowork accepts the standard `https://github.com/owner/repo` form and
the `owner/repo` shorthand for GitHub.

**2. Install plugins from it**

Plugins defined in the repository appear alongside plugins from other
marketplaces. Install them the same way.

Select **Check for updates** on a marketplace to pull the latest plugins from its repository, or turn on **Sync automatically**.

For marketplaces your organization manages, see [Manage plugins for your organization](https://claude.com/docs/plugins/admin.md), or [MCP, plugins, skills, and hooks](https://claude.com/docs/cowork/3p/extensions.md) if your organization deploys Claude Desktop with its own model provider.

## Limits

The following are the default limits for plugin packages and marketplaces.

| Limit | Value |
| - | - |
| Plugin package size (uncompressed) | 200 MB |
| Files per plugin package | 5,000 |
| Marketplace repository archive | 512 MB |
| Plugins per marketplace | 500 |
| Marketplaces you can add | 25 |

The in-app skill viewer previews individual files up to 1 MB. Larger files appear in the file list as "too large to preview" but are still available to Claude at runtime.

## Plugins managed by your organization

On Team and Enterprise plans, administrators can require certain plugins for everyone in the organization. Required plugins install automatically and show **This plugin is required by your organization**; you can't remove them.

For how administrators provision plugins, see [Manage plugins for your organization](https://claude.com/docs/plugins/admin.md).

## Update and remove plugins

Cowork checks for plugin updates from the marketplace they came from. If you've edited a plugin's files locally, Cowork detects the change and warns you before an update would overwrite it.

To remove a plugin you installed, open it under **Customize > Plugins** and select **Remove**. You can't remove a plugin marked **This plugin is required by your organization**.

## Next steps

* [Plugins](https://claude.com/docs/plugins/overview.md): how plugins work across Claude products
* [Manage plugins for your organization](https://claude.com/docs/plugins/admin.md): administrator provisioning on Team and Enterprise plans
* [Submit a plugin](https://claude.com/docs/plugins/submit.md): publish your own to the marketplace
* [MCP, plugins, skills, and hooks](https://claude.com/docs/third-party/claude-desktop/extensions.md): for organizations that deploy Claude Desktop with their own model provider