ui.select
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 gain validated Input, Select, and Link UI components.
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.260.
In the changelogs
4Releases whose published page names ui.select.
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v2.1.268
New desktop-surface plugin UI messaging (ui.message / ui.press / ui.input / ui.select)
New plugin UI plumbing routes ui.message and press/input/select events to a desktop app surface
found in this entry's text, named in this entry
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v2.1.267
New "ui.message" event added to a second, larger capability/event list
A broader UI/agent event list now includes a ui.message event
found in this entry's text
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v2.1.260
New declarative Input/Select/Link UI primitives for plugins
Plugins gain validated Input, Select, and Link UI components.
named in this entry, found in this entry's text
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v2.1.260
New plugin UI event types ui.input / ui.select
Plugin UI gains input/select interaction events alongside existing button press events.
named in this entry, found in this entry's text
First cited
2The earliest release whose published evidence quoted ui.select 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.