A Claude Code settings key, read out of the shipped bundle.
It was in the build from v2.1.138 and was gone by v2.1.284.
Default false. When true and the tengu_silk_hinge flag is on, the message list shows a dimmed full date and time on user prompts, assistant messages and queued commands. The Show message timestamps toggle in /config appears only while tengu_silk_hinge is on.
Not Anthropic's. Written by Claude Opus 5.5 from reading the v2.1.283 bundle, and it can be wrong.
First seen v2.1.138 9 May 2026
Last seen v2.1.283 25 Sep 2026, gone by v2.1.284
Builds126 / 150on this box, as of v2.1.309
Written about v2.1.113 first named in a changelog, 17 Apr 2026
v2.1.138in the build not in the build never minedv2.1.309
In the changelogs
2
Releases whose published page names showMessageTimestamps.
No 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
2
BuildsHow manyDatesReading
v2.1.138 – v2.1.283126 builds9 May 2026 → 25 Sep 2026 ◆in the build
v2.1.284 – v2.1.30924 builds28 Sep 2026 → 22 Oct 2026 ○not in the build
Build by build
150
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 settings key does. All settings keys.
