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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial

CLAUDE_CODE_ARTIFACT_FRESH_READ

env in the build JSON

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.274, including the newest one read.

Artifact reads for type-locked artifacts can now return data without first writing it to disk

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.274.

First seen v2.1.274 16 Sep 2026
Last seen v2.1.319 6 Nov 2026
Builds42 / 159on this box, as of v2.1.319
Written about v2.1.274 first named in a changelog, 16 Sep 2026
v2.1.274in the build not in the build never minedv2.1.319

In the changelogs

1

Releases whose published page names CLAUDE_CODE_ARTIFACT_FRESH_READ.

  1. v2.1.274
    Type-locked artifact reads can skip the raw-HTML disk save ("fresh read")

    Artifact reads for type-locked artifacts can now return data without first writing it to disk

    named in this entry, found in this entry's text

First cited

1

The earliest release whose published evidence quoted CLAUDE_CODE_ARTIFACT_FRESH_READ was v2.1.274, 16 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.

ReleaseDateThe span that was quoted
v2.1.27416 Sep 2026CLAUDE_CODE_ARTIFACT_FRESH_READ

Presence across releases

1
BuildsHow manyDatesReading
v2.1.274 – v2.1.31942 builds16 Sep 2026 → 6 Nov 2026 ◆in the build

Build by build

42

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.

BuildDateStateThe record behind it
v2.1.27416 Sep 2026·addedverdict: added · triBool
v2.1.27517 Sep 2026·presentverdict: present · triBool
v2.1.27618 Sep 2026·presentverdict: present · triBool
v2.1.27718 Sep 2026·presentverdict: present · triBool
v2.1.27819 Sep 2026·presentverdict: present · triBool
v2.1.28022 Sep 2026·presentverdict: present · triBool
v2.1.28123 Sep 2026·presentverdict: present · triBool
v2.1.28224 Sep 2026·presentverdict: present · triBool
v2.1.28325 Sep 2026·presentverdict: present · triBool
v2.1.28428 Sep 2026·presentverdict: present · triBool
v2.1.28529 Sep 2026·presentverdict: present · triBool
v2.1.28630 Sep 2026·presentverdict: present · triBool
v2.1.2871 Oct 2026·presentverdict: present · triBool
v2.1.2882 Oct 2026·presentverdict: present · triBool
v2.1.2893 Oct 2026·presentverdict: present · triBool
v2.1.2905 Oct 2026·presentverdict: present · triBool
v2.1.2916 Oct 2026·presentverdict: present · triBool
v2.1.2926 Oct 2026·presentverdict: present · triBool
v2.1.2937 Oct 2026·presentverdict: present · triBool
v2.1.2948 Oct 2026·presentverdict: present · triBool
v2.1.2958 Oct 2026·presentverdict: present · triBool
v2.1.2969 Oct 2026·presentverdict: present · triBool
v2.1.29914 Oct 2026·presentverdict: present · triBool
v2.1.30014 Oct 2026·presentverdict: present · triBool
v2.1.30115 Oct 2026·presentverdict: present · triBool
v2.1.30216 Oct 2026·presentverdict: present · triBool
v2.1.30318 Oct 2026·presentverdict: present · triBool
v2.1.30419 Oct 2026·presentverdict: present · triBool
v2.1.30520 Oct 2026·presentverdict: present · triBool
v2.1.30621 Oct 2026·presentverdict: present · triBool
v2.1.30721 Oct 2026·presentverdict: present · triBool
v2.1.30822 Oct 2026·presentverdict: present · triBool
v2.1.30922 Oct 2026·presentverdict: present · triBool
v2.1.31023 Oct 2026·presentverdict: present · triBool
v2.1.31126 Oct 2026·presentverdict: present · triBool
v2.1.31227 Oct 2026·presentverdict: present · triBool
v2.1.31430 Oct 2026·presentverdict: present · triBool
v2.1.31530 Oct 2026·presentverdict: present · triBool
v2.1.31631 Oct 2026·presentverdict: present · triBool
v2.1.3172 Nov 2026·presentverdict: present · triBool
v2.1.3183 Nov 2026·presentverdict: present · triBool
v2.1.3196 Nov 2026·presentverdict: present · triBool

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 environment variable does. All environment variables.

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