CLAUDE_CODE_WARN_DISK_FREE_GIB

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.304, including the newest one read.

Releases whose published page names CLAUDE_CODE_WARN_DISK_FREE_GIB.

1. v2.1.304 19 Oct 2026
   New environment variables can stop plugins from starting local MCP servers

   Setting CLAUDE_CODE_SKIP_PLUGIN_LOCAL_MCP_SERVERS keeps only remote MCP servers from plugins, and several other environment variables are new

   found in this entry's text

2. v2.1.304 19 Oct 2026
   New environment variables for startup marks and low disk or memory warnings

   New environment variables let SDK hosts read startup marks and set free disk and memory warning thresholds, and are passed on to child processes

   found in this entry's text

3. v2.1.304 19 Oct 2026
   Warnings when disk space or memory runs low

   Claude Code can warn you, and tell Claude, when free disk space or memory drops below limits you set with two new environment variables

   found in this entry's text

The earliest release whose published evidence quoted CLAUDE_CODE_WARN_DISK_FREE_GIB was v2.1.304, 19 Oct 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.

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 environment variable does. All environment variables.