astro/tools/vscode/tsconfig.base.json

{
  "compilerOptions": {
    "target": "es2019",
    "lib": ["ESNext"],
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "composite": true,
    "declaration": true,
    "strict": true,
    "skipLibCheck": true,
    "baseUrl": "./",
    "paths": {
      "@astro-vscode/*": ["packages/*/src"]
    }
  }
}