diff --git a/src/file-extension/database/index.ts b/src/file-extension/database/index.ts
new file mode 100644
index 0000000..4dd2d77
--- /dev/null
+++ b/src/file-extension/database/index.ts
@@ -0,0 +1,7 @@
+export * from "./connection.ts";
+
+export class DatabaseIndex {
+  static getAllConnections() {
+    return ["Connection"];
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/another/very/deep/nested/path/file.ts b/src/file-extension/spec/another/very/deep/nested/path/file.ts
index f7cce0d..8c4f14a 100644
--- a/src/file-extension/spec/another/very/deep/nested/path/file.ts
+++ b/src/file-extension/spec/another/very/deep/nested/path/file.ts
@@ -7,4 +7,6 @@ export class AnotherDeepClass {
   static getInfo(): AnotherDeepType {
     return { name: "another", description: "deep nested file" };
   }
-}
\ No newline at end of file
+}
+
+export const AnotherDeep = AnotherDeepClass;
\ No newline at end of file
diff --git a/src/file-extension/spec/config/app.ts b/src/file-extension/spec/config/app.ts
index 9cd39e8..1c2cd99 100644
--- a/src/file-extension/spec/config/app.ts
+++ b/src/file-extension/spec/config/app.ts
@@ -18,4 +18,6 @@ export const Config: AppConfig = {
     port: 5432,
     name: "test_db",
   },
-};
\ No newline at end of file
+};
+
+export type ConfigType = typeof Config;
\ No newline at end of file
diff --git a/src/file-extension/spec/config/database/connection.ts b/src/file-extension/spec/config/database/connection.ts
new file mode 100644
index 0000000..fbbf5c3
--- /dev/null
+++ b/src/file-extension/spec/config/database/connection.ts
@@ -0,0 +1,19 @@
+export interface DatabaseConfig {
+  host: string;
+  port: number;
+  database: string;
+  username: string;
+  password: string;
+}
+
+export class Connection {
+  constructor(private config: DatabaseConfig) {}
+
+  async connect(): Promise<void> {
+    console.log("Database connected");
+  }
+
+  async disconnect(): Promise<void> {
+    console.log("Database disconnected");
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/models/user.ts b/src/file-extension/spec/models/user.ts
index b256be5..4520803 100644
--- a/src/file-extension/spec/models/user.ts
+++ b/src/file-extension/spec/models/user.ts
@@ -2,10 +2,13 @@ export interface User {
   id: string;
   name: string;
   email: string;
+  findById(id: string): Promise<User | null>;
 }
 
 export class UserService {
   async findById(id: string): Promise<User | null> {
     return { id, name: "Test User", email: "test@example.com" };
   }
-}
\ No newline at end of file
+}
+
+export const User = UserService;
\ No newline at end of file
diff --git a/src/file-extension/spec/services/auth.ts b/src/file-extension/spec/services/auth.ts
new file mode 100644
index 0000000..70a002e
--- /dev/null
+++ b/src/file-extension/spec/services/auth.ts
@@ -0,0 +1,16 @@
+export interface AuthSettings {
+  secret: string;
+  expiresIn: string;
+}
+
+export class AuthService {
+  constructor(private settings: AuthSettings) {}
+
+  async authenticate(token: string): Promise<boolean> {
+    return token === "valid-token";
+  }
+
+  async generateToken(userId: string): Promise<string> {
+    return `token-${userId}`;
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/services/auth/auth-service.ts b/src/file-extension/spec/services/auth/auth-service.ts
new file mode 100644
index 0000000..7184d3e
--- /dev/null
+++ b/src/file-extension/spec/services/auth/auth-service.ts
@@ -0,0 +1,16 @@
+export interface AuthServiceConfig {
+  tokenExpiry: string;
+  refreshExpiry: string;
+}
+
+export class AuthService {
+  constructor(private config: AuthServiceConfig) {}
+
+  async validateUser(credentials: any): Promise<boolean> {
+    return true;
+  }
+
+  async createToken(userId: string): Promise<string> {
+    return `auth-token-${userId}`;
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/types/index.ts b/src/file-extension/spec/types/index.ts
new file mode 100644
index 0000000..4fcddae
--- /dev/null
+++ b/src/file-extension/spec/types/index.ts
@@ -0,0 +1,7 @@
+export * from "./user.ts";
+
+export class TypesIndex {
+  static getAllTypes() {
+    return ["UserProfile", "UserRole", "UserPermissions"];
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/types/user/user-types.ts b/src/file-extension/spec/types/user/user-types.ts
new file mode 100644
index 0000000..cb35d8d
--- /dev/null
+++ b/src/file-extension/spec/types/user/user-types.ts
@@ -0,0 +1,18 @@
+export type UserStatus = "active" | "inactive" | "pending";
+
+export interface UserMetadata {
+  lastLogin: Date;
+  loginCount: number;
+  preferences: Record<string, any>;
+}
+
+export interface UserTypes {
+  status: UserStatus;
+  metadata: UserMetadata;
+}
+
+export class UserTypeHelper {
+  static isActiveUser(status: UserStatus): boolean {
+    return status === "active";
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/utils/helpers/string-utils.ts b/src/file-extension/spec/utils/helpers/string-utils.ts
new file mode 100644
index 0000000..274bfcc
--- /dev/null
+++ b/src/file-extension/spec/utils/helpers/string-utils.ts
@@ -0,0 +1,25 @@
+export interface StringHelperOptions {
+  trim: boolean;
+  lowercase: boolean;
+  removeSpecialChars: boolean;
+}
+
+export class StringUtils {
+  static format(input: string, options: Partial<StringHelperOptions> = {}): string {
+    let result = input;
+    
+    if (options.trim) {
+      result = result.trim();
+    }
+    
+    if (options.lowercase) {
+      result = result.toLowerCase();
+    }
+    
+    return result;
+  }
+
+  static validate(input: string): boolean {
+    return input.length > 0;
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/utils/logger/logger.ts b/src/file-extension/spec/utils/logger/logger.ts
new file mode 100644
index 0000000..f930854
--- /dev/null
+++ b/src/file-extension/spec/utils/logger/logger.ts
@@ -0,0 +1,16 @@
+export interface LoggerConfig {
+  level: "debug" | "info" | "warn" | "error";
+  output: "console" | "file";
+}
+
+export class Logger {
+  constructor(private config: LoggerConfig) {}
+
+  info(message: string, meta?: any): void {
+    console.log(`[INFO] ${message}`, meta || "");
+  }
+
+  error(message: string, meta?: any): void {
+    console.error(`[ERROR] ${message}`, meta || "");
+  }
+}
\ No newline at end of file
diff --git a/src/file-extension/spec/very/deep/nested/path/file.ts b/src/file-extension/spec/very/deep/nested/path/file.ts
index a938d37..7aecf87 100644
--- a/src/file-extension/spec/very/deep/nested/path/file.ts
+++ b/src/file-extension/spec/very/deep/nested/path/file.ts
@@ -7,4 +7,6 @@ export class DeepNestedClass {
   static getData(): DeepNestedType {
     return { id: "deep", value: "nested" };
   }
-}
\ No newline at end of file
+}
+
+export const DeepNested = DeepNestedClass;
\ No newline at end of file
diff --git a/src/file-extension/spec/yet/another/very/deep/nested/path/file.ts b/src/file-extension/spec/yet/another/very/deep/nested/path/file.ts
index 7b9c27a..2d860ed 100644
--- a/src/file-extension/spec/yet/another/very/deep/nested/path/file.ts
+++ b/src/file-extension/spec/yet/another/very/deep/nested/path/file.ts
@@ -7,4 +7,6 @@ export class YetAnotherDeepClass {
   static process(): YetAnotherDeepType {
     return { key: "yet-another", metadata: { depth: "very deep" } };
   }
-}
\ No newline at end of file
+}
+
+export const YetAnother = YetAnotherDeepClass;
\ No newline at end of file
diff --git a/src/services/index.ts b/src/services/index.ts
new file mode 100644
index 0000000..d15b9c4
--- /dev/null
+++ b/src/services/index.ts
@@ -0,0 +1,7 @@
+export * from "./auth.ts";
+
+export class ServicesIndex {
+  static getAllServices() {
+    return ["AuthService"];
+  }
+}
\ No newline at end of file