Anthropic has introduced plugin support for Cowork, the task mode in Claude that operates on your computer and functions within folders you select. Plugins package skills, connectors, slash commands, and sub-agents, enabling Claude to act as a role-specific specialist. These presets are designed for various fields such as sales, finance, legal, product, marketing, customer support, data work, and biology research.
Wait a minute, Anthropic just opened a possibility for anyone to build their own Bundles Marketplace, which users can add as a URL or a Github repository.
— TestingCatalog News 🗞 (@testingcatalog) January 30, 2026
This is the way! 🤖 https://t.co/G4Sgwo7GRu pic.twitter.com/brUA6MU7bL
In addition to in-app installation and an “upload plugin” option, Anthropic is open-sourcing an 11-plugin starter set on GitHub. This collection outlines a straightforward, file-based structure: a plugin manifest (plugin.json), a connector map (.mcp.json), a commands folder for specific “/” actions, and markdown skills that activate when needed. Connectors are set up through MCP servers, allowing teams to link plugins to the tools and data sources they already utilize, while maintaining the behavior and workflows as editable plain files.
Plugin support is available in research preview for paid Claude plans and currently stores plugins locally on each machine. Future enhancements include organization-wide sharing and private marketplaces. Cowork operates in an isolated VM environment on the user’s computer and requires explicit permission before permanently deleting files. However, it can still modify any files you grant access to, making connector scope and permissions a crucial part of the rollout planning.
