Multiprompt M3

Single-app Android companion for direct SSH access to multiprompt tmux sessions

A native Android app that connects directly to public SSH hosts and provides a mobile reader for existing tmux sessions. An embedded live terminal remains available as a fallback. The app does not require Tailscale or a second app.

First-run flow Open Hosts and add each VPS. Import the OpenSSH private key used for that VPS. The app encrypts it with a non-exportable Android Keystore key before persistence. Refresh once, compare the displayed SHA-256 host fingerprint with ssh-keygen -lf /etc/ssh/ssh_host_ed25519_key.pub on the server, then trust it. Changed host keys fail closed. Tap a tmux session to read its recent output and send prompts. Use Open live terminal only when the reader actions are insufficient; the phone never changes the desktop tmux dimensions. Tap the microphone to enable Deepgram dictation. Paste the API key once; the app encrypts it with Android Keystore and keeps it off GitHub and out of release APK configuration. The app uses public-key authentication only. It does not accept an unverified host key, expose an arbitrary remote-command box, or copy MP's Windows-local credentials to Android. Prompt text reaches tmux through SSH stdin instead of shell interpolation.

Native Claude skills and session controls Type / in a Claude session's message box. Its native skills appear above the box. Keep typing to filter; tap a skill. The box receives /name, not bundled instructions. + → Skill opens the same list. Existing draft text stays after the selected skill.

+ → Model and + → Effort change the connected session. Current values come from its live output. Changing either keeps your draft and attached images. + → Add image remains available.

Skills come from that SSH user's Claude configuration, enabled plugins, and the selected session's project. The old downloaded skill catalog is removed.