opencode-osc9

A zero-dependency opencode plugin that sends desktop notifications via OSC 9 escape sequences when tasks complete.

Works with any terminal that supports OSC 9, including Ghostty, iTerm2, kitty, WezTerm, and others.

Install

Add "opencode-osc9" to the plugins array in your opencode config (usually ~/.config/opencode/opencode.jsonc):

{
  "plugin": ["opencode-osc9@latest"]
}

Try it

You can test OSC 9 support in your terminal by running the included try.ts:

[!TIP] Most terminals won't fire a notification if the window is focused so a 3 second delay is baked into the try.ts script to give you time to change app focus.

# bun
bun try.ts

# node (v24+)
node try.ts