DeferredToolPlaceholder

A Claude Code tool, read out of the shipped bundle. It has been in the build since v2.1.263, including the newest one read.

Nobody has written a line about this one. It is not in any of Anthropic's reference tables and no changelog entry here carries a description of it. It is in the build, which is the whole of what this page can claim.

Releases whose published page names DeferredToolPlaceholder.

1. v2.1.207 10 Jul 2026
   DeferredToolPlaceholder: Keeps Deferred Tool Loading Active

   found in this entry's text

The earliest release whose published evidence quoted DeferredToolPlaceholder was v2.1.207, 10 Jul 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.

One 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 tool does. All tools.