Umbra – a autonomous Android agent with background screen control
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Ranked by a public rubric, not by votes: what a comment adds counts, not who wrote it. How comments are ranked · Comment rules
Summary
Umbra is a free, MIT-licensed Android 16 app, shared on Hacker News as a Show HN, that runs an autonomous agent on the phone. The agent operates apps through accessibility and screen control, builds code in an on-device Debian environment (chroot with root, proot without), and requires approval for risky…