You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
File ToolsArea: what it touches
ImprovementsKind: in v2.1.323,
ImprovementsSection of the release
Unclear It is not clear whether this list is applied by the sandbox or by a separate read blocklist.
What
Claude Code keeps a list of special system files it blocks. On Linux it already held /proc/kmsg. It now also holds:
/proc/kcore
/proc/vmcore
These files expose images of the computer's kernel memory, the memory used by the core of the operating system.
Why
It is a small step that stops tools from reading kernel memory images.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtIt is not clear whether this list is applied by the sandbox or by a separate read blocklist.
Anthropic's release notes agreeFixed Edit and Bash running out of memory on certain /proc files, and Edit hanging or running out of memory on devices and named pipes
