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DevLens is an open-source CLI tool (AGPL v3) that transforms TypeScript and JavaScript repositories into interactive dependency graphs with AI-powered summaries and security analysis. Features include full AST parsing with 10+ relationship types, state intelligence (Redux, Zustand, Jotai), PageRank-based importance scoring, blast radius analysis for PRs, commit diff visualization, route detection (Next.js, Express, Fastify), and checkpoint/resume. Runs 100% locally — code never leaves your machine. Graph generation in 6-20 seconds for 500-2500+ nodes.
Learn how blast radius analysis transforms your development workflow by predicting code change impacts before they break production systems.
Master blast radius analysis to identify risky changes before they break production. Step-by-step guide with CLI tools, metrics, and real examples.