dropUnwatchedStreamEvents
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.
Two new remote flags control telemetry event-holding and dropping unwatched stream events
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.268.
In the changelogs
3Releases whose published page names dropUnwatchedStreamEvents.
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v2.1.268
New CCR worker flags: event-hold and drop-unwatched-stream-events
Two new remote flags control telemetry event-holding and dropping unwatched stream events
found in this entry's text
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v2.1.268
New server-controlled telemetry hold: dropUnwatchedStreamEvents / servedPolicyHolds
Telemetry can now silently drop unwatched stream events under a new server-controlled policy hold, instead of buffering them
found in this entry's text, named in this entry
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v2.1.268
CCR (remote session) client gains ability to drop unwatched stream events
Remote session client can now be set to drop stream events nobody is watching
found in this entry's text, named in this entry
First cited
1The earliest release whose published evidence quoted dropUnwatchedStreamEvents was v2.1.268, 10 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.