Under the hood
Sandboxed-container file mirroring now runs a one-time staging sweep per session
What
When Claude Code mirrors file changes from a sandboxed container back to the host machine, it now runs a one-time "staging sweep" step. This sweep happens once per session: it's only triggered if it hasn't already run in that session, and once it has run, later calls skip it.
Why
This ensures the staging sweep for container file mirroring happens exactly once per session rather than repeatedly, which likely avoids redundant work.
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The writer flagged doubt
The finding doesn't say what the staging sweep actually does beyond being tied to the file-write path, so its concrete effect on file…