GoKawiilhrdx.dev
What is it?
hrdx is a experimental, minimal and lightweight terminal multiplexer built for the agent era: your projects as workspaces in a sidebar, tabs per workspace, and real terminal panes running Codex CLI, Claude Code, pi, zot or plain shells side by side. Kick off an agent in one project, switch to the next, and let the sidebar spinners tell you who is still working.
Real terminals, not wrappers. Every pane is a genuine PTY session with a full terminal emulator behind it. Agent TUIs run exactly as they do standalone: streaming, slash commands, sessions, mouse support, all of it. Panes present a clean terminal identity so capability-sniffing TUIs pick rendering paths that work inside a multiplexer, and HRDX=1 lets tools detect they run inside hrdx.
Every pane is a genuine PTY session with a full terminal emulator behind it. Agent TUIs run exactly as they do standalone: streaming, slash commands, sessions, mouse support, all of it. Panes present a clean terminal identity so capability-sniffing TUIs pick rendering paths that work inside a multiplexer, and lets tools detect they run inside hrdx. Everything in view. The sidebar shows one hierarchy of workspaces, Git branches, and panes, adding tab rows only when a workspace has multiple tabs. Every pane has a shared status circle: agents become animated braille spinners while working, and an unfocused agent turns orange when it finishes. Focusing the pane acknowledges it and restores green.
The sidebar shows one hierarchy of workspaces, Git branches, and panes, adding tab rows only when a workspace has multiple tabs. Every pane has a shared status circle: agents become animated braille spinners while working, and an unfocused agent turns orange when it finishes. Focusing the pane acknowledges it and restores green. Feels like your terminal. Scrollback, mouse selection with clipboard copy, drag-to-resize splits, drag-to-reorder workspaces, right-click context menus, and kitty keyboard protocol pass-through so even exotic chords like ctrl+1 reach your agent.
Scrollback, mouse selection with clipboard copy, drag-to-resize splits, drag-to-reorder workspaces, right-click context menus, and kitty keyboard protocol pass-through so even exotic chords like ctrl+1 reach your agent. Picks up where you left off. Quit and relaunch: shells and agents keep running in a lightweight session holder and reattach exactly where they were, running commands and all. Workspaces, tabs, splits, and ratios come back too, and if a session is truly gone, agents resume their latest conversation from their own session store.
Quit and relaunch: shells and agents keep running in a lightweight session holder and reattach exactly where they were, running commands and all. Workspaces, tabs, splits, and ratios come back too, and if a session is truly gone, agents resume their latest conversation from their own session store. Yours to tune. A settings window ( ctrl+b , or the gear in the sidebar) lets you switch individual agents on or off, pick a notification sound for finished turns (including your own audio files), and change the color theme, with user themes as simple JSON files. All persisted. See Themes.
A settings window ( or the gear in the sidebar) lets you switch individual agents on or off, pick a notification sound for finished turns (including your own audio files), and change the color theme, with user themes as simple JSON files. All persisted. See Themes. Bring your own agent. Register any agent CLI as a custom harness via a small JSON file, including its own busy detection for the sidebar spinner and finish sound. It shows up in pickers, cycling, and settings like the built-ins. See Custom harnesses.
Register any agent CLI as a custom harness via a small JSON file, including its own busy detection for the sidebar spinner and finish sound. It shows up in pickers, cycling, and settings like the built-ins. See Custom harnesses. Scriptable from outside. A JSON socket API lets scripts and editors inspect workspaces and pane states, open projects, spawn panes, type into agents, wait for them to finish, read their screens, and subscribe to live events. See Socket API.
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