fs.ancestors
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.
Plugin file access is now checked against the session root too, and plugins can list files in parent directories.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.247.
In the changelogs
2Releases whose published page names fs.ancestors.
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v2.1.247
Plugin file access is checked against the session root as well as the project root, and can list ancestor files
Plugin file access is now checked against the session root too, and plugins can list files in parent directories.
named in this entry, found in this entry's text
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v2.1.247
Plugin host protocol carries a press operation and button layout
Plugin sandboxes can now handle button presses and lay out Button elements.
found in this entry's text
First cited
1The earliest release whose published evidence quoted fs.ancestors was v2.1.247, 26 Aug 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.