Red Hat open-sources ripwire: zero-dependency repo context for coding agents, ~5% of grep tokens
TheMoonMidas · x · 2026-09-07
Red Hat Emerging Technologies released ripwire, a zero-dependency C++23 CLI + MCP server that gives coding agents repository context without embeddings, a vector DB, an LLM indexer or a daemon.
- Parses 21 languages with Tree-sitter and builds a deterministic structural map of a codebase
- Ranks symbols per task while attaching call relationships, complexity, git churn, change amplification and test coverage
- An agent asking about e.g. "incremental cache invalidation" gets relevant symbols, callers, likely blast radius and tests to run in a token-budgeted response, instead of grepping and opening files repeatedly
- Signatures use 80% fewer bytes than bodies; 5% of a grep-and-read pass's tokens
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