I Built an AI Coding Agent That Ships in Under 50KB — Zero Dependencies, Runs on a Phone

Description and use

Stew Code is a lightweight AI coding agent that runs on Android phones, zero dependencies, under 50 KB, offering vision, headless browsing, screenshots, and task planning.

Problem

Developers in emerging markets lack affordable hardware and software, making AI tooling inaccessible.

Outcome

Stew Code delivers a full AI coding experience on low‑resource devices, enabling developers in emerging markets to access advanced tooling without expensive hardware.

Workflow

• Install Node 18+ and npm via Termux
• Run npm i -g stew-ai (49 KB install)
• Obtain free API key from https://stew-agent.onrender.com
• Authenticate with stew auth login
• Launch REPL with stew code
• Use commands like /image screenshot.png, /browse, /screenshot, /record, /scan, /swarm, /voice

Evidence

the entire package must stay under 50KB, with zero dependencies.

Source

It runs on an Android phone. That's the entire point — AI tooling shouldn't require hardware most of the world can't afford.

Source