CLAUDE_CODE_ARTIFACT_PATH_PIN
A Claude Code environment variable, read out of the shipped bundle.
It has been in the build since v2.1.271, including the newest one read.
Boolean, default true when unset; 0, false, no or off turns it off. It controls artifact path pins: Claude Code records the SHA-256 of each artifact file Claude reads, lists or publishes, and refuses a publish that would replace or remove a file changed since Claude last saw it, or an already published file Claude has not read. The setting is captured when the session's artifact state is set up.
Not Anthropic's. Written by Claude Opus 5.5 from reading the v2.1.286 bundle, and it can be wrong.
First seen v2.1.271 14 Sep 2026
Last seen v2.1.308 22 Oct 2026
Builds35 / 149on this box, as of v2.1.308
Written about — no changelog entry names it
v2.1.271in the build not in the build never minedv2.1.308
In the changelogs
0
No changelog entry here has ever named it. That is a statement about what has been written, not about the name: it has been in the build since v2.1.271 without anybody writing a line about it.
First cited
0
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
1
BuildsHow manyDatesReading
v2.1.271 – v2.1.30835 builds14 Sep 2026 → 22 Oct 2026 ◆in the build
Build by build
35
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
v2.1.27114 Sep 2026·addedverdict: added · triBool
v2.1.27214 Sep 2026·presentverdict: present · triBool
v2.1.27315 Sep 2026·presentverdict: present · triBool
v2.1.27416 Sep 2026·presentverdict: present · 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
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.