Show HN: Topos – Structural code quality metrics for agent-written programs

Topos, an open-source tool from Krv-Labs, evaluates code quality by mapping programs to structural graphs and calculating metrics for simplicity, composability, and security. It aims to address the bottleneck of human code review for agent-written programs by providing automated structural analysis. The tool is available as a CLI, MCP Server, and VS Code Extension under a BSD-3 license.

Code review is the new bottleneck. "Tests passing" is no longer sufficient to trust the changes, and the human cost of evaluating the quality and robustness of new agent-written contributions is skyrocketing. We built Topos to evaluate code quality based on the structural properties of the programs themselves. We map your files to graphs AST, CFG, CPG, MDG and calculate metrics that can characterize how simple, composable, or secure your programs are. Agents can use this tool as they write and optimize based on your preferences. And yes, the inspiration for the repository is from category theory: this is inspired by a topos for program evaluation, that comes equipped with objects program representations , morphisms maps on graphs , probes, profunctors, test-coverage metrics, and a custom subobject classifier Heyting algebra generated by the 3 pillars of evaluation that affords a highly structured framework for awarding medals for program quality. GitHub: https://github.com/Krv-Labs/topos https://github.com/Krv-Labs/topos Open Source. BSD-3 License. CLI, MCP Server & VS Code Extension. Comments URL: https://news.ycombinator.com/item?id=48678841 https://news.ycombinator.com/item?id=48678841 Points: 1 Comments: 0