onMaxLifetime
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.
Runner sessions gain lifecycle hooks for max-lifetime and termination events.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.260.
In the changelogs
3Releases whose published page names onMaxLifetime.
-
v2.1.260
Self-hosted runner session gets lifecycle hooks and current-session tracking
Runner sessions gain lifecycle hooks for max-lifetime and termination events.
found in this entry's text
-
v2.1.260
Self-hosted runner sessions get max-lifetime and termination hooks
Runner child processes gain max-lifetime and terminating lifecycle callbacks.
found in this entry's text
-
v2.1.260
Session watchdog max-lifetime kill decision can be overridden by a hook
A hook can now override whether a background session gets killed at its max lifetime.
named in this entry, found in this entry's text
First cited
2The earliest release whose published evidence quoted onMaxLifetime was v2.1.260, 3 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
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.