haplollc/vesalius is a tool that builds a local code graph so that Claude Code can read the structure of a repository. The latest release is v2.1.0, and the provided records contain no specific change items for this version, so the additions and modifications cannot be confirmed. The source is the haplollc/vesalius GitHub repository.
This tool indexes repository files and call relationships on-device so that the structure of the code can be queried. The README explains that Claude Code returns results backed by files and line locations. It is implemented in Swift and provides an MCP (Model Context Protocol) server, a command-line tool, a Mac app, and a VS Code extension. MCP is the standard through which coding agents connect to external tools. The README states that code is not transmitted off the device and that macOS 15 or later is required.
The README's own benchmark reports that token usage per question was roughly halved, and presents a comparison using 20 questions. The README also shows a badge of 323 passing tests, but that is separate from the performance comparison results. However, the benchmark is a result presented by the project itself, and no independent verification material has been confirmed. Therefore, its composition as a local code exploration tool is clear, but the magnitude of the token savings cannot be treated as performance evidence beyond the project's own report.