diff --git a/@types/.gitignore b/@types/.gitignore
new file mode 100644
index 0000000..7ae51ab
--- /dev/null
+++ b/@types/.gitignore
@@ -0,0 +1,10 @@
+.DS_Store
+.idea
+*.log
+tmp/
+
+node_modules/
+npm-debug.log*
+*.tsbuildinfo
+.npm
+.eslintcache
diff --git a/@types/index.d.ts b/@types/index.d.ts
new file mode 100644
index 0000000..7904d60
--- /dev/null
+++ b/@types/index.d.ts
@@ -0,0 +1,6 @@
+
+declare module 'codedown-languages' {
+  type SettingsItem =
+    "boolean"
+    | "string";
+}
diff --git a/@types/package-lock.json b/@types/package-lock.json
new file mode 100644
index 0000000..5c7c42e
--- /dev/null
+++ b/@types/package-lock.json
@@ -0,0 +1,28 @@
+{
+    "name": "@types/codedown-languages",
+    "version": "1.0.0",
+    "lockfileVersion": 3,
+    "requires": true,
+    "packages": {
+        "": {
+            "name": "@types/codedown-languages",
+            "version": "1.0.0",
+            "devDependencies": {
+                "typescript": "^5.0.0"
+            }
+        },
+        "node_modules/typescript": {
+            "version": "5.6.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.2.tgz",
+            "integrity": "sha512-NW8ByodCSNCwZeghjN3o+JX5OFH0Ojg6sadjEKY4huZ52TqbJTJnDo5+Tw98lSy63NZvi4n+ez5m2u5d4PkZyw==",
+            "dev": true,
+            "bin": {
+                "tsc": "bin/tsc",
+                "tsserver": "bin/tsserver"
+            },
+            "engines": {
+                "node": ">=14.17"
+            }
+        }
+    }
+}
diff --git a/@types/package.json b/@types/package.json
new file mode 100644
index 0000000..f2cf95b
--- /dev/null
+++ b/@types/package.json
@@ -0,0 +1,14 @@
+{
+    "name": "@types/codedown-languages",
+    "version": "1.0.0",
+    "description": "TypeScript definitions for codedown-languages",
+    "main": "",
+    "types": "index.d.ts",
+    "scripts": {
+        "test": "tsc"
+    },
+    "dependencies": {},
+    "devDependencies": {
+        "typescript": "^5.0.0"
+    }
+}
diff --git a/@types/tsconfig.json b/@types/tsconfig.json
new file mode 100644
index 0000000..30e8377
--- /dev/null
+++ b/@types/tsconfig.json
@@ -0,0 +1,14 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": ["es6"],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": ["index.d.ts"]
+}