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ripwire is a zero-dependency C++23 CLI and MCP server that outputs a ranked, deterministic call graph of a repository, supporting 21 languages via vendored tree-sitter grammars.
It returns symbol signatures, blast radius, change amplification, and tests-to-run in an XML bundle measured at roughly 5% of a grep-and-read token pass. The tool runs as a single offline binary with no API key, embeddings, or index server, and integrates with shell-based agents or an optional MCP server.