Show HN: Vexus – tells Claude Code where to look before it greps your repo

Category: devtools

Tags: code-search, claude-code, mcp, rust, local-indexing

Score: 6.8/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 6)

Vexus is a Rust-based tool that indexes a codebase locally and hooks into Claude Code's prompt flow to inject a small list of likely relevant code locations before the agent greps, reducing token spend and tool calls. It also offers an optional MCP server with explore/open/trace tools and reports measured cost reductions across live Claude Code sessions.

Target audience: backend devs and AI coding agent users

Repository: https://github.com/faique43/vexus · Rust · MIT

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