P4 ON THE GRID · HARD · WHAT RIDES ALONG WITH YOU

Radio

A chime when Claude finishes a long turn, so you can look away.

HARD · CabinON TRACKv0.3.0tested on Claude Code 2.1.287 on Windows

ON THE DASH

/chime sound C:/path/to/chime.wav

/chime sound C:/path/to/chime.wavmakes it play your own sound. It plays the file once so you hear it, then keeps it across sessions.

/chime sound defaultgoes back to the bundled chime.

/chime testplays the done chime, then the whistle.

/chime offand /chime on switch it.

/chimesays whether it is on, and which sound it plays.

L1The chime plays only when a turn took longer than 20 seconds, so quick answers stay quiet.

L2The command was /radio until 0.3.0.

Claude Code now has a /radio of its own, so the mod answers to /chime. Your saved sound carries over.

L3Your own sound has to be a .wav file.

On Windows it is played with Windows' own SoundPlayer, through PowerShell, because Claude Code's player does not play in a Windows terminal. The path is passed as a setting, never inside the command. Elsewhere Claude Code plays the bundled chime. It reads only the sound file you name and sends nothing anywhere.

L4What it runs and sends

Nothing goes anywhere. Here is each thing, plainly.

What it sends, and where.

Nothing leaves your machine. The only thing it sends is a sound file's path, to the player program below.
It keeps one value on this machine, in Claude Code's plugin store: the path of your own sound (ownSound), if you set one.
The ways out are two Claude Code calls. $.process.run starts the player program below on your machine. $.audio.play is Claude Code's own sound player, which plays a bundled sound.

Which programs it runs, and why.

One program, on Windows, to play the sound, because Claude Code's own player does not play in a Windows terminal:
powershell.exe -NoProfile -Command "(New-Object Media.SoundPlayer $env:RADIO_FILE).PlaySync()"
The command is fixed text. The sound file's path goes in as the environment value RADIO_FILE, never inside the command.
It runs when a turn longer than 20 seconds finishes, unless Radio is off. It also runs on /chime test, and once on /chime sound <file> so you hear it.
Where PowerShell does not run, Claude Code's own player plays the bundled chime instead.

What it puts in the prompts it submits.

It submits no prompts, and changes none of yours.

What each hook does.

session.start: adds the /chime command and loads your own sound's path.
turn.start: notes when the turn began.
turn.complete: plays the chime if the turn took 20 seconds or more.
command.run for chime: switches it on or off, sets your sound, plays the test, or says how it is set.