Where the real risk lived
Long-running coding-agent sessions were tied to a desk, with no useful way to inspect progress, provide input, or receive completion signals from a phone.
CASE STUDY / Agent systems · Mobile
Tether
A native Android client and real-time backend for operating Claude Code remotely over a private Tailscale network.
SourcePublic
App and backend are inspectable.
ClientNative
Kotlin and Jetpack Compose.
TransportRealtime
Streaming over WebSocket.
NetworkPrivate
No public port exposure.
Design the controls with the happy path
Pair a Kotlin/Compose client with a TypeScript backend, WebSockets, Agent SDK orchestration, private networking, resumable sessions, uploads, and push notifications.
What the system proves
An end-to-end working system spanning native mobile, real-time state, agent orchestration, secure networking, and operational notification flows.
Implementation surface
Technologies chosen around the workflow.
KotlinJetpack ComposeTypeScriptFastifyWebSocketAgent SDKTailscaleFCM
Paid entry engagement · €1,500
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