microsoft / microsoft/TypeScript
Support for `workspace/diagnostic` from LSP 3.17
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@andrewbranch is already working on this.
Since Aug 21, 2026.
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Description
Tracking issue for support on the LSP [`workspace/diagnostics`](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#workspace_diagnostic) request. Getting this working would be a major win over `typescript-language-server` and `vtsls` to get project wide diagnostics in editors where all issues are detected before each individual file is open the current reliance on `didOpen` makes editor workspace diagnostics less reliable.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.