Privacy and the Install Ping

Quack runs on your computer. It never sends your code, file paths, prompts, names or account data anywhere.

The install ping

The first session after you install or update Quack sends one request:

POST https://www.quack.build/api/plugin-notify
{ "event": "installed", "version": "1.2.0", "id": "3f1c…" }

• event is installed the first time on a machine, updated after an update.
• id is random, made on your machine, and stored in the plugin's data folder.
• It is sent once per machine and version, with a 1.5 second timeout. If you are offline, it is skipped and not retried.

It tells us how many people use Quack. That's all it is for.

Turn it off

Set either variable in your shell or in Claude Code's env settings:

export QUACK_NO_PING=1
# or
export DO_NOT_TRACK=1

The code is short: scripts/ping.mjs in the plugin source.