2026-09-02 / Signal #3
ChatGPT’s Desktop App Quietly Bundled a Full LibreOffice in a 1.7GB Hidden Folder
“ChatGPT installed LibreOffice on your Mac without asking.”
The Story
The ChatGPT desktop app (formerly Codex) stores about 1.7GB in a cache folder that includes full Python and Node runtimes plus native binaries for git, Poppler, and a complete LibreOffice suite so the agent can read/write Office files locally. Skills in the folder tell the model how to invoke those tools.
Why It Matters
Your AI assistant moved in and brought its own entire office suite. Agents are becoming self-contained toolchains that live in ~/.cache.
Evidence
Simon Willison (Sept 1, 2026); follow-up reporting
Sources
Daily scan: 2026-09-02