cpuacct.usage
A Claude Code settings key, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.
CPU telemetry now reads cgroup usage from a fixed path and adds a new shell CPU time metric
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.265.
In the changelogs
4Releases whose published page names cpuacct.usage.
-
v2.1.312
Shell command CPU time is now totalled for each turn
Claude Code now reports shell CPU time for each turn and since the last result, read from the Linux cgroup counter
found in this entry's text
-
v2.1.311
Claude Code now measures CPU time for shell commands in more ways
Claude Code can now read a shell command's CPU time from the whole process tree, the command's own process and the cgroup, and drops the figure if a read fails
found in this entry's text
-
v2.1.302
MCP tool results can now report how much CPU the shell used
MCP tool responses can now include a shell CPU time figure, read from the system's cgroup accounting when the value looks sane
found in this entry's text
-
v2.1.265
cgroup CPU accounting rewritten to read cpuacct.usage directly, adds shell CPU tracking
CPU telemetry now reads cgroup usage from a fixed path and adds a new shell CPU time metric
named in this entry, found in this entry's text
First cited
0No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.
Presence across releases
0The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.