additionalDirectories
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.
You can register repo roots under any directory passed with --add-dir, and duplicates now say so clearly.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.219.
In the changelogs
7Releases whose published page names additionalDirectories.
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v2.1.282
Broken managed settings now fail safe, including permission and sandbox blocks
An invalid value in managed settings now becomes its most restrictive value, and a block with an unreadable deny rule loses its allow grants
found in this entry's text
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v2.1.281
Sandbox write-deny now covers git objects/info/alternates and http-alternates
The sandbox now blocks writes to git's
objects/info/alternatesandobjects/info/http-alternatesfilesfound in this entry's text
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v2.1.260
Cloud/remote sessions get a read-only Skills dialog
Cloud sessions now show a read-only dialog listing which skills that session loaded.
found in this entry's text
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v2.1.246
/cdrebuilt: one routine re-homes everything, and it tells you what was left behind/cd now re-points transcript, settings, hooks and skills in one pass and reports anything left behind.
found in this entry's text
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v2.1.246
Permission rules and extra directories read one consistent settings snapshot
Permission rules and extra directories are collected from one settings snapshot, avoiding inconsistent reads.
found in this entry's text
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v2.1.224
Runner can refuse repo-committed settings that reach outside the workspace
The runner can warn about or block repo-committed settings that grant access outside the workspace.
found in this entry's text
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v2.1.219
register_repo_root accepts launch-time directories and rejects duplicates
You can register repo roots under any directory passed with --add-dir, and duplicates now say so clearly.
named in this entry, found in this entry's text
First cited
1The earliest release whose published evidence quoted additionalDirectories was v2.1.246, 25 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.