Use it now Notable
Plugins get a new file system API for reading, writing, and listing files, capped at 4MB
What
Plugins now have a filesystem API with readFile, writeFile, exists, stat, and listDir operations, all scoped to a resolved working directory. Both reads and writes are capped at 4,194,304 bytes (4MB); exceeding the limit returns an explicit refusal saying the file is over the byte limit.
Why
This lets plugins interact directly with files on disk in a controlled way, with a size limit that prevents a plugin from reading or writing unexpectedly huge files.