Groma.md releases code architecture visualization tool
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mrlesk has released Groma.md, which can scan a code repository into C4 architecture diagrams and store them as OKF Markdown in the repository's groma/ directory, so architecture changes enter pull request review together with the code. The tool is MIT-licensed, runs locally, and requires no account or backend; after installing the scanner, scanning can be done offline, using deterministic code analysis without calling AI services. On macOS, Apple Silicon is required. After the first scan, the user or a coding agent can organize the architecture; subsequent scans only refresh code references, preserving names, descriptions, and relationships that have already been written. On public repositories, Groma.md's GitHub Action comments the number of changes in the pull request and includes a link to an interactive before-and-after comparison diagram.
AI overview based on source reports · Updated 14 min ago
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- Hacker News AIGroma.md: Stay in control of your architecture as AI agents write code
groma.md is a free, MIT-licensed tool that scans a repository into a live C4 architecture map stored as Open Knowledge Format Markdown in Git, updating as files are saved and keeping curation across later scans. It runs locally with no account or backend, uses deterministic code analysis, calls no AI service, and can be used entirely without AI; coding agents can curate the map via the same CLI. Architecture changes are reviewed in the same pull request as the code, and an optional GitHub Action comments on PRs with change counts and a before-and-after map.
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