Is Stylus Pressure safe?

Low risk

Stylus Pressure bridges drawing stylus pressure data from Magma and Dessine web pages to a locally-installed native plugin via native messaging.

The extension connects to a local native application (com.agamnentzar.stylus) and relays messages from supported drawing websites (magma.com, magmastudio.io, dessine.net, and related domains) to that native host. Web pages on those domains connect via the externally_connectable API, and the extension forwards their messages verbatim to the native plugin without structural validation (except for a 'restart' command). No user data is transmitted to remote servers; all communication is between the browser and the local native plugin.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

Agamnentzarv1.2.3Chrome Web Store
20Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

What it can do

Permissions this extension asks for, as declared in version 1.2.3. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Talk to a program installed on your computer, outside the browser's sandbox

    nativeMessaging

Updated 21 September 2026ecelnbeiglepohnlccefodfpmedepoll