CLAUDE_CODE_AUTO_MODE_TIER
A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.286, including the newest one read.
Setting CLAUDE_CODE_AUTO_MODE_TIER to any value, even "full", makes Claude Code use the "strict" auto mode tier
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.286.
In the changelogs
2Releases whose published page names CLAUDE_CODE_AUTO_MODE_TIER.
-
v2.1.286
CLAUDE_CODE_AUTO_MODE_TIERforces the strict auto mode tierSetting
CLAUDE_CODE_AUTO_MODE_TIERto any value, even "full", makes Claude Code use the "strict" auto mode tierfound in this entry's text, named in this entry
-
v2.1.286
New
CLAUDE_CODE_AUTO_MODE_TIERvariable is passed along with other settingsWhen
CLAUDE_CODE_AUTO_MODE_TIERis set, Claude Code includes it in the list of environment settings it builds for commands it preparesfound in this entry's text, named in this entry
First cited
2The earliest release whose published evidence quoted CLAUDE_CODE_AUTO_MODE_TIER was v2.1.286, 30 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.
Presence across releases
1Build by build
2One 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 environment variable does. All environment variables.