diff --git a/README.md b/README.md
index e32bea3..df6a7f1 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ Pattern matching for TypeScript/ESM environments (F#-style, not regex).
 ## VSCode integration
 
 - Recommended extensions: see `.vscode/extensions.json` (oxc, cspell).
-- TypeScript 7 is used via `typescript.tsdk` pointing at `node_modules/typescript/lib`.
+- TypeScript 7 is used via the `typescriptteam.native-preview` extension.
 - oxc extension provides oxlint squiggles and oxfmt format-on-save.
 
 ## Workflows
diff --git a/project-specs.md b/project-specs.md
index 856ee25..520f54a 100644
--- a/project-specs.md
+++ b/project-specs.md
@@ -403,8 +403,6 @@ Resolves #...
 
 ```json
 {
-    "typescript.tsdk": "node_modules/typescript/lib",
-    "js/ts.tsdk.path": "node_modules/typescript/lib",
     "[typescript]": {
         "editor.defaultFormatter": "oxc.oxc-vscode",
         "editor.formatOnSave": true
@@ -458,6 +456,5 @@ Resolves #...
   (build, test, lint, typecheck, format, spell, check:outdated) are
   run via the npm scripts in `package.json` from the integrated
   terminal.
-- VSCode uses the workspace TypeScript version via
-  `typescript.tsdk` (and the explicit `js/ts.tsdk.path`), with
-  `oxc.oxc-vscode` for formatting and linting.
+- VSCode uses TypeScript 7 via the `typescriptteam.native-preview`
+  extension, with `oxc.oxc-vscode` for formatting and linting.