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Claude Cowork Plugins: Connectors, Skills, and What Ships Free.

Claude Cowork plugins bundle connectors and skills together. Anthropic ships three free plugin packs. Here is what each one includes and how to extend Cowork beyond the built-ins.

Tom CrawshawBy Tom Crawshaw·

Claude Cowork plugins bundle connectors and skills together into one install. A connector gives Cowork access to an external service like Gmail or Notion. A skill gives it a reusable instruction set for a specific kind of task. A plugin packages both so you install one thing and get the whole capability.

Anthropic ships three plugin packs for free: Productivity, Customer Support, and Finance. Beyond those, there is a connector marketplace you can extend manually, and a Zapier MCP connector that bridges apps not yet in the marketplace.

I'm Tom. I teach operators how to build with Claude, and I went through the full Cowork connector setup to give you a clear picture of what you actually get.

Claude Cowork plugins: connectors, skills, and plugin bundles explained
A plugin bundles connectors (external service access) and skills (reusable instructions) into one install.

The difference between connectors, skills, and plugins.

These three words get used interchangeably in conversations about Cowork. They are not the same thing.

A connector is access to an external service. The Gmail connector lets Cowork read and send emails. The Google Drive connector lets it read and write files in your Drive. The Notion connector lets it read and update your Notion workspace. Connectors are the integration layer.

A skill is a reusable instruction set. It tells Cowork how to handle a specific kind of task, like "when you summarise emails, format them this way and flag items that need a response within 24 hours." Skills make consistent behaviour replicable without re-prompting every time.

A plugin bundles connectors and skills together. Install a plugin and you get both the service access and the instructions for how to use it productively. That is why installing the Productivity plugin gets you further than just connecting Gmail manually.

The three free plugin packs from Anthropic.

Anthropic ships three plugin packs that are available at no extra charge on paid Claude plans.

Productivity covers the core day-to-day tools: email, calendar, and document work. It includes connectors for Gmail, Google Calendar, and Google Drive, with skills for inbox triage, meeting prep, and document summarisation.

Customer Support is built for teams handling customer communication. It includes skills for ticket summarisation, response drafting, and escalation flagging. The connectors in this pack depend on which support tools are in the marketplace.

Finance handles financial documents and reporting. Skills for reading invoices, extracting line items, reconciling data, and producing summaries. This is the pack most useful for solo operators doing their own bookkeeping with AI support.

All three packs are installed from the Cowork plugins or integrations section in the desktop app. Select a pack, click install, and grant the OAuth permissions for each connector inside it.

The connector marketplace.

Beyond the three plugin packs, Cowork has a connector marketplace where you can add integrations individually. The confirmed connectors as of May 2026 include Gmail, Google Calendar, Google Drive, and Notion.

The marketplace does not yet include CRM platforms like Salesforce or HubSpot. It does not yet include ecommerce platforms. If your workflow depends on those tools, you are working around a gap.

The workaround most operators use is the Zapier MCP connector. Zapier connects to thousands of apps, and if you bridge Zapier into Cowork via MCP, you can route actions through Zapier to apps that have no direct connector yet. It is more setup than a native connector, but it extends your reach considerably.

Projects: folders with their own connector context.

Projects in Cowork wrap a folder with its own instructions, connectors, and memory. Each project can have different integrations active. Your client work project might have a specific Notion workspace connected. Your personal project might have only Google Drive.

This separation matters when you have connectors that touch sensitive data. Instead of one global connector context that bleeds across tasks, projects keep each area of your work scoped and separate.

What Cowork plugins cannot do yet.

Cowork connectors work within a sandbox. Cowork cannot access services you have not explicitly connected. It cannot reach tools that are not in the marketplace or bridged through Zapier MCP.

The sandbox is intentional. It keeps Cowork safe for non-technical users who do not want Claude touching things they did not explicitly grant. But it does mean the ceiling is lower than Claude Code, which has full machine access.

For work that needs custom APIs, webhooks, or connections to tools that have no Zapier integration, you are outside what Cowork plugins can handle. That work belongs in Claude Code with a custom MCP server setup. For a look at how MCP servers work in Claude Code, read Claude Code MCP: Setup, Scopes and the 4 Servers I Use.

Cowork plugins vs Claude Code MCP servers.

They solve the same problem from different angles: giving Claude access to tools outside itself.

Cowork plugins are one-click installs through a marketplace UI. They work inside the sandbox. They are designed for non-technical operators who want integrations without config files.

Claude Code MCP servers are configured in JSON, can connect to any API or service with an MCP implementation, and have no sandbox restriction. They require more setup and more technical comfort.

If you start with Cowork and hit the ceiling of what the marketplace offers, that is when you move toward Claude Code and MCP. If you never hit that ceiling, Cowork plugins handle everything you need.

Cowork plugins FAQ.

Are the Anthropic plugin packs really free?

Yes. The Productivity, Customer Support, and Finance plugin packs from Anthropic are included with paid Claude plans at no extra charge. You need Claude Pro ($20/month), Max, or Team.

Can I build my own Cowork plugin?

As of May 2026, custom plugin creation is not publicly documented. Anthropic controls the plugin marketplace. For custom integrations, use a Zapier MCP bridge or move to Claude Code MCP servers.

Does the Gmail connector read all my emails?

The Gmail connector requests access during the OAuth flow. You grant it the permissions it asks for. Cowork can only access what you explicitly authorised. Review the permission request carefully before clicking approve.

What happens if I revoke a connector's access?

Cowork can no longer reach that service. Tasks that depend on the connector will fail or skip that integration. You can reconnect it at any time through the integrations panel.

Can Cowork write to my Google Drive?

Yes, with the Google Drive connector installed and write permissions granted. Cowork can create, update, and organise files in the folders you have given it access to.

Extend Cowork to what you actually need.

The three free plugin packs cover most operators' day-to-day needs. Email, calendar, documents, basic reporting. Start there, see where the gaps are, and bridge with Zapier MCP for anything the marketplace does not cover yet.

For a wider look at what Cowork can do day to day, read 10 Real Claude Cowork Use Cases That Save You Hours. For how Cowork compares to building with Claude Code directly, read Claude Cowork vs Claude Code.

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