core

Why we included this project

OpenSumi is a framework for building your own IDE rather than a finished editor you can install and use right away. You pick the pieces you need, like the file tree, editor pane, terminal, and source control integration, and assemble them into a desktop or cloud-based coding environment that stays compatible with the VS Code extension ecosystem. The main reason AI teams look at it is the built-in MCP client, which lets the editor reach external tools over the Model Context Protocol instead of writing a custom integration for every model or service. That makes it a reasonable home for coding agents, tools, and models that need to talk to each other. Expect to put in real engineering time, because standing up your own IDE is a project in its own right, but teams shipping AI-native developer tools get an extensible base to build on.