I Built Basalt to Turn Any GitHub Repository Into an Architecture Diagram in Seconds

Software engineers often face a daunting challenge when handed a new repository: understanding the system's architecture. Instead of diving into code, there exists a ritual of exploring folders and files, attempting to piece together a mental model of the system's interactions. This process, which can take up to 45 minutes, aims to answer the fundamental question: "What does this system actually look like?"

Basalt aims to alleviate this issue by automating the first step in understanding a repository. The tool analyzes a given GitHub repository and tries to comprehend its inner workings. Rather than merely listing files, Basalt seeks to grasp the system's relationships, including component detection, relationship analysis, and architecture generation.

The system's workflow begins with a repository and proceeds through repository analysis, codebase understanding, component detection, relationship analysis, and ultimately architecture generation. The core of Basalt's functionality lies in recognizing the relationships within the repository, as these relationships form the basis of the system's architecture.

The tool challenges the notion that a README file is always the source of truth. While a README may outline the high-level components of an application, the reality is that the codebase reveals the true system behavior. Developers often discover components and dependencies that were not mentioned in documentation, highlighting the importance of understanding the codebase.

Basalt addresses the first five minutes of a new codebase, where engineers typically spend time trying to comprehend the system's structure. By generating an architecture representation early on, Basalt allows engineers to start working with a clear map of the system's components and their relationships. This approach contrasts with simply reading a repository's folder structure, which only provides a superficial understanding of the system.

While Basalt can produce an architecture diagram, the tool's primary goal is to facilitate system understanding. The diagram serves as the output, but the real value lies in answering critical questions about the system. These questions include identifying major components, determining the starting point of the application, understanding service interactions, recognizing external dependencies, and uncovering infrastructure elements.

By providing a comprehensive view of the system, Basalt enables engineers to work more efficiently and effectively.

The larger idea behind Basalt is to accelerate the understanding of repositories by making them more human-readable. Repositories contain vast amounts of information, but the challenge lies in extracting meaning from that information. Basalt aims to bridge the gap between code and comprehension, streamlining the onboarding process for new projects, team collaborations, open-source contributions, and codebase inheritances.

By providing architecture before diving into coding, Basalt empowers engineers to begin working with a clear mental model of the system, ultimately saving time and effort in the software development process.