* sessions: add browser-style chat tab keybindings (Cmd+T, Cmd+Shift+T, Delete) Add three keybindings to the agents window that mirror browser tab management: - Cmd/Ctrl+T: New Chat — opens a new chat within the active session, scoped to sessions that support multiple chats and are not archived. - Cmd/Ctrl+Shift+T: Reopen Last Closed Chat — reopens the most recently closed chat tab. Tracks close order via a new _closedChatOrder array on VisibleSession (append on close, splice on reopen), exposed as lastClosedChat on IActiveSession, so reopen order is correct regardless of original chat creation order. - Delete / Cmd+Backspace (Mac): Delete Chat — permanently deletes the active non-main chat with confirmation. Guarded by InputFocusedContext.toNegated() so it never fires while the user is typing in the chat composer or any other input field. All three keybindings are scoped to IsSessionsWindowContext and EditorAreaFocusContext.toNegated() so they only activate in the agents window outside the editor area. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: add lastClosedChat to IActiveSession test mocks Three test files construct IActiveSession object literals that now need the lastClosedChat property added after it was introduced to the interface. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: guard lastClosedChat against stale deleted chats; add MRU tests - lastClosedChat now walks _closedChatOrder from newest to oldest and skips entries whose chat has been deleted from the session (no longer in session.chats or _closedChatUris), so Reopen Last Closed Chat never no-ops on a stale reference after deletion. - Adds 4 unit tests to 'VisibleSession - open/close chats' covering: - MRU close-order correctness (close C then B → last closed is B) - lastClosedChat updates after reopening the last-closed chat - returns undefined when nothing is closed - skips deleted chats and falls back to the next valid one Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * fix: add lastClosedChat to remaining IActiveSession test mocks Two more test files (sessionsListModelService.test.ts and sessionNavigation.test.ts) construct IActiveSession object literals that were missing the lastClosedChat property. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Visual Studio Code - Open Source ("Code - OSS")
The Repository
This repository ("Code - OSS") is where we (Microsoft) develop the Visual Studio Code product together with the community. Not only do we work on code and issues here, but we also publish our roadmap, monthly iteration plans, and our endgame plans. This source code is available to everyone under the standard MIT license.
Visual Studio Code
Visual Studio Code is a distribution of the Code - OSS repository with Microsoft-specific customizations released under a traditional Microsoft product license.
Visual Studio Code combines the simplicity of a code editor with what developers need for their core edit-build-debug cycle. It provides comprehensive code editing, navigation, and understanding support along with lightweight debugging, a rich extensibility model, and lightweight integration with existing tools.
Visual Studio Code is updated monthly with new features and bug fixes. You can download it for Windows, macOS, and Linux on Visual Studio Code's website. To get the latest releases every day, install the Insiders build.
Contributing
There are many ways in which you can participate in this project, for example:
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If you are interested in fixing issues and contributing directly to the code base, please see the document How to Contribute, which covers the following:
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Related Projects
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Bundled Extensions
VS Code includes a set of built-in extensions located in the extensions folder, including grammars and snippets for many languages. Extensions that provide rich language support (inline suggestions, Go to Definition) for a language have the suffix language-features. For example, the json extension provides coloring for JSON and the json-language-features extension provides rich language support for JSON.
Development Container
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For Dev Containers, use the Dev Containers: Clone Repository in Container Volume... command which creates a Docker volume for better disk I/O on macOS and Windows.
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For Codespaces, install the GitHub Codespaces extension in VS Code, and use the Codespaces: Create New Codespace command.
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Code of Conduct
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
License
Copyright (c) Microsoft Corporation. All rights reserved.
Licensed under the MIT license.