Structural issues that make codebases hard to maintain
Misused patterns, anti-patterns, and architectural decisions that will cause problems later
Components that know too much about each other, making changes ripple everywhere
Business logic in the wrong layer, UI logic in services, data access scattered around
Patterns that work for small apps but break as the system grows
Architecture Advisor knows when you're violating core design principles
Each module should have one reason to change
Violation: A service that handles auth, logging, and business logic
Open for extension, closed for modification
Violation: Giant switch statements that grow with each feature
Depend on abstractions, not concretions
Violation: Business logic directly instantiating database clients
Many specific interfaces beat one general-purpose
Violation: Forcing clients to implement methods they don't need
See how Architecture Advisor guides structural improvements
// userService.ts
import { orderService } from './orderService'
// orderService.ts
import { userService } from './userService'
// Circular! Changes ripple in both directionsCircular dependency: changes affect both modules
// userService.ts
import { OrderRepository } from './interfaces'
// orderService.ts
import { UserRepository } from './interfaces'
// Both depend on abstractions, not each otherIntroduce interfaces to break the cycle
class OrderController {
async createOrder(req, res) {
// Validation
if (!req.body.items) throw new Error('...')
// Business logic
const total = calculateTotal(req.body.items)
const discount = applyDiscount(total, req.user)
// Database
await db.orders.create({ ... })
// Email
await sendEmail(req.user.email, 'Order confirmed')
}
}Controller does validation, business logic, DB, and email
class OrderController {
async createOrder(req, res) {
const dto = OrderDto.fromRequest(req)
const order = await this.orderService.create(dto)
return OrderResponse.from(order)
}
}
// Business logic in OrderService
// Email in NotificationService
// Validation in OrderDtoEach layer has one responsibility
Architecture Advisor sees beyond individual files. It understands how your system fits together and identifies structural issues that affect the whole codebase.
Builds a graph of how modules depend on each other
Checks if responsibilities are in the right layer
Identifies design patterns and anti-patterns
Map Dependencies
Builds a graph of how components relate to each other
Identify Patterns
Recognizes architectural patterns and their usage
Assess Coupling
Measures how tightly components are connected
Suggest Improvements
Recommends refactoring with migration paths
Good architecture is invisible. Bad architecture slows everything down.
Clean architecture means new features slot in without fighting the codebase
Low coupling means changes don't ripple across the entire system
Good structure handles growth without rewrites
Architecture decisions made today become constraints tomorrow.
Architecture Advisor helps you decide wisely.
Let Architecture Advisor catch structural issues before they compound. Free for 14 days, no credit card required.