StructScope, a Visual Struct Layout Analysis for Systems Engineers

Built Struct Scope, a local first VS Code extension and CLI for analyzing struct memory layouts in C, C++, and Rust.

The project started from a simple frustration: low level layout problems are often invisible until they become expensive to debug. Padding waste, alignment issues, cache line splits, ABI differences, and platform specific behavior can quietly affect memory usage, performance, serialization, and binary compatibility, especially in systems and embedded development.

Struct Scope parses source files directly and visualizes how structures are laid out in memory across different target ABIs. It provides byte level layout maps, field offsets, padding analysis, cache awareness, and rule based improvement guidance without invoking a compiler or relying on external services.

A major focus was building something accurate enough for real engineering workflows while still being fast to inspect inside the editor. The current version already supports multiple ABI models, platform comparison, VS Code diagnostics, CLI reporting, and layout optimization suggestions, with more work planned around compiler specific behavior and advanced layout analysis.