Open source tools for people who build software with coding agents, from Kleto.
complex-md tells your coding agent what it could break, before it edits. It computes a risk map of a repository from its git history: the hotspots, the files that change together and the tests to run. It writes the map to COMPLEX.md, beside AGENTS.md. Try it in any git repository with npx complex-md. Docs and the spec are at complex.md.
complex-md-action comments on a pull request when it touches a COMPLEX.md hotspot or skips a co-change partner. It reads the base branch map and runs no code from the pull request.
Each repository has a CONTRIBUTING.md with its test gate and its AI assistance policy. Report a security issue privately through the repository's Security tab.