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Sweep 29 Sep 2026 · 18:10Z Build v2.1.285 506 read Stable v2.1.280 Latest v2.1.285 Next v2.1.285 Feeds RSS JSON llms.txt llms-full.txt Unofficial

COMPUTERNAME

env in the build JSON

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.285, including the newest one read.

Claude Code can now read the computer name, using macOS's own tool, the Windows COMPUTERNAME value, or the hostname elsewhere

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.285.

First seen v2.1.285 29 Sep 2026
Last seen v2.1.285 29 Sep 2026
Builds1 / 128on this box, as of v2.1.285
Written about v2.1.285 first named in a changelog, 29 Sep 2026
v2.1.285in the build not in the build never minedv2.1.285

In the changelogs

1

Releases whose published page names COMPUTERNAME.

  1. v2.1.285
    Claude Code can now look up your computer's name

    Claude Code can now read the computer name, using macOS's own tool, the Windows COMPUTERNAME value, or the hostname elsewhere

    found in this entry's text

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
v2.1.2851 build29 Sep 2026 ◆in the build

Build by build

1

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
v2.1.28529 Sep 2026·addedverdict: added · str

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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