Show HN: Harness.apk – a drop-in on-device agent for Android

Category: ai-ml

Tags: android, ai-agent, termux, claude, on-device

Score: 7.5/10 (Innovation: 8, Technical: 9, Documentation: 6, Utility: 7)

Harness.apk packages a full agentic loop (Claude-based) into a single Android APK that bootstraps its own Termux environment and uses shims to run musl binaries on Android. It enables on-device agents with rich phone-specific capabilities like notifications, intents, and self-ADB, making it a novel and technically impressive mobile agent platform.

Target audience: mobile developers, AI researchers, Android power users

Repository: https://github.com/nev3rfail/harness.apk · Kotlin · MIT · 3 stars

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