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A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.138, including the newest one read.
What it is
Nobody has written a line about this one. It is not in any of Anthropic's reference tables and no changelog entry here carries a description of it. It is in the build, which is the whole of what this page can claim.
Presence across releases
| Releases | Reading | Declared type | Default |
|---|---|---|---|
| 2.1.245 – 2.1.250 5 releases | never mined | — | — |
| 2.1.160 – 2.1.243 75 releases | in the build | str | — |
| 2.1.138 – 2.1.159 20 releases | in the build | — | — |
A row reading never mined is a release with no archived bundle behind it. Nothing was read out of it, so nothing here says whether the name was in it. A declared type or a default is only ever what that release's own bundle stated.
Changelog entries naming it
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 v2.1.138 without anybody writing a line about it.
Documentation pages
- Or, for the model with the same capabilities and no access approval requirement: mentions it Claude Developer Platform
- optimizing-for-cost-and-intelligence mentions it Claude Developer Platform
- Create an instance of the Claude API client mentions it Claude Developer Platform
- PDF Processing mentions it Claude Developer Platform
- claude-api-skill mentions it Claude Developer Platform
- enterprise mentions it Claude Developer Platform
- quickstart mentions it Claude Developer Platform
- mcp-connector mentions it Claude Developer Platform
- concepts mentions it Claude Developer Platform
- console mentions it Claude Developer Platform
- Edit docker-compose.yaml: increment the integer in the setup service's mentions it Claude Developer Platform
- deploy-helm mentions it Claude Developer Platform
A reference table page is one whose own table defines this name, and it is where the description above came from. A page that mentions it carries the name somewhere in its text and may say nothing about it at all. Every page carrying it.
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.