not_installed
A Claude Code settings key, read out of the shipped bundle. It was in the build from v2.1.301 and was gone by v2.1.302.
You can run claude plugin update with just the plugin name, no marketplace needed.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.246.
In the changelogs
6Releases whose published page names not_installed.
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v2.1.307
New
claude sandbox uninstallcommand removes the Windows sandboxOn native Windows,
claude sandbox uninstallremoves the sandbox account, group, stored password and network filters, then lists what remainsfound in this entry's text
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v2.1.287
Plugin commands give more specific errors and resolve names across marketplaces
Plugin install and uninstall failures now report specific error codes, and --config is skipped when an install changed nothing
found in this entry's text
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v2.1.281
Plugin loading: directory-pin/source policy check before re-download; install-version kind
Plugin loading and updates run a new check that can refuse a plugin, and updating an uninstalled npm-marketplace plugin now fails with
not_installedfound in this entry's text
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v2.1.268
Plugin enable/disable results now carry a machine-readable failureCode
Plugin enable/disable failures now return a machine-readable failureCode alongside the human-readable error message
found in this entry's text
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v2.1.268
Org-required plugins can no longer be disabled/uninstalled, with new structured failure codes
Plugins your organization requires can no longer be disabled or uninstalled, and failures now report a specific reason code
found in this entry's text
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v2.1.246
claude plugin updateaccepts a bare plugin nameYou can run claude plugin update with just the plugin name, no marketplace needed.
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
2Build by build
8One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
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.