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Visualizing Complexity: From Code to Diagram

How we use AST parsing and AI to turn 100,000 lines of spaghetti code into a pristine, navigable system map.

Updated 3/10/2024Sarah Chen, Lead Architect

Visualizing Complexity: From Code to Diagram

The 100k Line Problem

Every senior engineer knows the feeling. You join a new team. You ask for the architecture documentation. They laugh and point to a whiteboard that hasn't been erased in 3 years.

"Just read the code," they say.

But reading 100k lines of code to understand the high-level system flow is inefficient.

The AST Approach

At Architecto, we don't just guess. We use Abstract Syntax Tree (AST) parsing to understand exactly how your modules interact.

// Example of how we parse imports
import { UserService } from './services/user';

We know that this file depends on UserService. We map that dependency. We scale that up to thousands of files. And then we use force-directed graph algorithms to lay it out beautifully.

Adding AI Context

AST gives us the "What". AI gives us the "Why".

We pipe the metadata into our specialized LLM context to generate summaries of why the User Service is calling the Payment Gateway (e.g., "Processing monthly subscription renewal").

This combination of deterministic parsing and probabilistic summarization is the secret sauce behind Flow IQ.

Visualizing Complexity: From Code to Diagram | Architecto