Semantic code graphs that cut AI coding-assistant token usage by 60–90%.

TokenSave is an open-source code intelligence tool written in Rust. It parses a repository into a persistent semantic knowledge graph capturing symbols, call relationships, type hierarchies, file structure, and change history. The graph is exposed through a Model Context Protocol (MCP) server, letting AI coding assistants (Claude Code, Codex, Gemini CLI, Cursor) answer questions like “who calls this function?” or “what’s affected by this change?” by querying the graph — instead of repeatedly reading source files into their context window. Real-world usage shows 60–90% reductions in token consumption on common development tasks. TokenSave is MIT-licensed and distributed via crates.io, Homebrew, and Scoop.