model.fork
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.
Plugins can call model.fork to ask a question against the live transcript, with no tools and a two-turn cap.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.257.
In the changelogs
2Releases whose published page names model.fork.
-
v2.1.318
Plugins can choose an effort level for model.fork
The plugin call model.fork now accepts an optional effort level and rejects any value that is not a known level
found in this entry's text, named in this entry
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v2.1.257
New
$.model.forkplugin hook API forks the warm main-thread transcriptPlugins can call model.fork to ask a question against the live transcript, with no tools and a two-turn cap.
named in this entry, found in this entry's text
First cited
1The earliest release whose published evidence quoted model.fork was v2.1.257, 1 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.