kbd-signal is a command-line tool that communicates with VIA-compatible mechanical keyboards (such as Keychron models running stock firmware) over raw HID. It changes the keyboard's RGB backlight color and pattern to visually indicate the current state of Claude Code or Codex sessions. No firmware flashing or special hardware is required. It is useful for developers who want passive, glanceable feedback while working.
kbd-signal sits in PulseGate's CLI tools & terminal category. It focuses on monitoring the status of Claude Code / Codex runs without looking at the screen. kbd-signal is an open-source project aimed at developers. The project is open source (MIT). It runs on the command line.
It is developed by Sora-bluesky, and the product first shipped in 2026. The project is developed in the open on GitHub with 19 commits in the last 90 days. Among its 5 catalogued features are RGB Status Lamp, Claude Code Integration, and Raw HID Communication.
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