diff --git a/packages/language-service/tsconfig.json b/packages/language-service/tsconfig.json
index 97fc79b..a99a88d 100644
--- a/packages/language-service/tsconfig.json
+++ b/packages/language-service/tsconfig.json
@@ -1,7 +1,7 @@
 {
   "extends": "tempblot-config/tsconfig.json",
   "include": ["src"],
-  "references": [{ "path": "../parser/tsconfig.json" }],
+  "references": [{ "path": "../parser/tsconfig.build.json" }],
 
   "compilerOptions": {
     "declaration": true,
diff --git a/packages/parser/eslint.config.mjs b/packages/parser/eslint.config.mjs
index b3931d8..7eb16fa 100644
--- a/packages/parser/eslint.config.mjs
+++ b/packages/parser/eslint.config.mjs
@@ -6,9 +6,7 @@ export default [
     files: ['**/*.ts', '**/*.tsx', '**/*.mts', '**/*.cts'],
     languageOptions: {
       parserOptions: {
-        projectService: {
-          allowDefaultProject: ['tests/*.ts', 'vite.config.ts'],
-        },
+        projectService: true,
         tsconfigRootDir: import.meta.dirname,
       },
     },
diff --git a/packages/parser/package.json b/packages/parser/package.json
index ed6e903..1e5e56c 100644
--- a/packages/parser/package.json
+++ b/packages/parser/package.json
@@ -14,10 +14,10 @@
     "lib"
   ],
   "scripts": {
-    "build": "tsc --build",
-    "prepack": "tsc --build --clean && tsc --build",
+    "build": "tsc --build tsconfig.build.json",
+    "prepack": "tsc --build tsconfig.build.json --clean && tsc --build tsconfig.build.json",
     "test:lib": "vitest",
-    "test:types": "tsc --noEmit",
+    "test:types": "tsc --noEmit --project tsconfig.spec.json",
     "test:eslint": "eslint ."
   },
   "devDependencies": {
diff --git a/packages/parser/tsconfig.build.json b/packages/parser/tsconfig.build.json
new file mode 100644
index 0000000..1223db8
--- /dev/null
+++ b/packages/parser/tsconfig.build.json
@@ -0,0 +1,9 @@
+{
+  "extends": "tempblot-config/tsconfig.json",
+  "include": ["src"],
+  "compilerOptions": {
+    "declaration": true,
+    "outDir": "lib",
+    "rootDir": "src"
+  }
+}
diff --git a/packages/parser/tsconfig.json b/packages/parser/tsconfig.json
index 1223db8..dcb77f1 100644
--- a/packages/parser/tsconfig.json
+++ b/packages/parser/tsconfig.json
@@ -1,9 +1,7 @@
 {
-  "extends": "tempblot-config/tsconfig.json",
-  "include": ["src"],
-  "compilerOptions": {
-    "declaration": true,
-    "outDir": "lib",
-    "rootDir": "src"
-  }
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.build.json" },
+    { "path": "./tsconfig.spec.json" }
+  ]
 }
diff --git a/packages/parser/tsconfig.spec.json b/packages/parser/tsconfig.spec.json
new file mode 100644
index 0000000..10c6412
--- /dev/null
+++ b/packages/parser/tsconfig.spec.json
@@ -0,0 +1,8 @@
+{
+  "extends": "tempblot-config/tsconfig.json",
+  "include": ["src", "tests", "vite.config.ts"],
+  "compilerOptions": {
+    "noEmit": true,
+    "resolveJsonModule": true
+  }
+}
diff --git a/packages/parser/vite.config.ts b/packages/parser/vite.config.ts
index e3b748f..67c8c62 100644
--- a/packages/parser/vite.config.ts
+++ b/packages/parser/vite.config.ts
@@ -1,5 +1,5 @@
 import { defineConfig } from 'vitest/config'
-import packageJson from './package.json'
+import packageJson from './package.json' with { type: 'json' }
 
 export default defineConfig(({ mode }) => ({
   test: {
diff --git a/packages/prettier-plugin/eslint.config.mjs b/packages/prettier-plugin/eslint.config.mjs
index b3931d8..7eb16fa 100644
--- a/packages/prettier-plugin/eslint.config.mjs
+++ b/packages/prettier-plugin/eslint.config.mjs
@@ -6,9 +6,7 @@ export default [
     files: ['**/*.ts', '**/*.tsx', '**/*.mts', '**/*.cts'],
     languageOptions: {
       parserOptions: {
-        projectService: {
-          allowDefaultProject: ['tests/*.ts', 'vite.config.ts'],
-        },
+        projectService: true,
         tsconfigRootDir: import.meta.dirname,
       },
     },
diff --git a/packages/prettier-plugin/package.json b/packages/prettier-plugin/package.json
index bb510e5..7709185 100644
--- a/packages/prettier-plugin/package.json
+++ b/packages/prettier-plugin/package.json
@@ -14,8 +14,8 @@
     "lib"
   ],
   "scripts": {
-    "build": "tsc --build",
-    "prepack": "tsc --build --clean && tsc --build",
+    "build": "tsc --build tsconfig.build.json",
+    "prepack": "tsc --build tsconfig.build.json --clean && tsc --build tsconfig.build.json",
     "test:lib": "vitest",
     "test:eslint": "eslint ."
   },
diff --git a/packages/prettier-plugin/tsconfig.build.json b/packages/prettier-plugin/tsconfig.build.json
new file mode 100644
index 0000000..0afa833
--- /dev/null
+++ b/packages/prettier-plugin/tsconfig.build.json
@@ -0,0 +1,10 @@
+{
+  "extends": "tempblot-config/tsconfig.json",
+  "include": ["src"],
+  "references": [{ "path": "../parser/tsconfig.build.json" }],
+  "compilerOptions": {
+    "declaration": true,
+    "outDir": "lib",
+    "rootDir": "src"
+  }
+}
diff --git a/packages/prettier-plugin/tsconfig.json b/packages/prettier-plugin/tsconfig.json
index 8d69d41..dcb77f1 100644
--- a/packages/prettier-plugin/tsconfig.json
+++ b/packages/prettier-plugin/tsconfig.json
@@ -1,10 +1,7 @@
 {
-  "extends": "tempblot-config/tsconfig.json",
-  "include": ["src"],
-  "compilerOptions": {
-    "declaration": true,
-    "outDir": "lib",
-    "rootDir": "src"
-  },
-  "references": [{ "path": "../parser" }]
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.build.json" },
+    { "path": "./tsconfig.spec.json" }
+  ]
 }
diff --git a/packages/prettier-plugin/tsconfig.spec.json b/packages/prettier-plugin/tsconfig.spec.json
new file mode 100644
index 0000000..10c6412
--- /dev/null
+++ b/packages/prettier-plugin/tsconfig.spec.json
@@ -0,0 +1,8 @@
+{
+  "extends": "tempblot-config/tsconfig.json",
+  "include": ["src", "tests", "vite.config.ts"],
+  "compilerOptions": {
+    "noEmit": true,
+    "resolveJsonModule": true
+  }
+}
diff --git a/packages/prettier-plugin/vite.config.ts b/packages/prettier-plugin/vite.config.ts
index e3b748f..67c8c62 100644
--- a/packages/prettier-plugin/vite.config.ts
+++ b/packages/prettier-plugin/vite.config.ts
@@ -1,5 +1,5 @@
 import { defineConfig } from 'vitest/config'
-import packageJson from './package.json'
+import packageJson from './package.json' with { type: 'json' }
 
 export default defineConfig(({ mode }) => ({
   test: {