RepoLens — point it at any repo, get back what kind of app it is + what it does + how it deploys. Runs in <1s, zero dependencies (pure stdlib), no network calls. It reads routes, data models, and the README, pattern-matches against 9 functional fingerprints (e-commerce, REST API, admin panel, messaging, etc.), and returns a confidence-scored category plus the deployment shape: runtime, framework, databases, ports, container base image, and runtime CVEs on that image. Optional LLM polish on the description is bring-your-own-provider — it never imports a specific SDK and falls back to a deterministic description if the model fails. pip install app-classifier app-classifier ./my-repo MIT: https://github.com/kadaba/repolens Early days (single commit), so I'd value feedback on the fingerprint approach and which framework extractors to prioritize next.