Unclear It is not clear whether Claude Code writes these session markers yet or what it does with them.
What
Claude Code has a new way to work out which organization you belong to, always as a lowercase ID:
- When
CLAUDE_CODE_OAUTH_TOKENis set, or another token source applies, it usesCLAUDE_CODE_ORGANIZATION_UUID. - Otherwise it uses the organization saved with your signed-in account.
New markers also appear for session records: a session owner entry, a history suppression entry and a credential organization entry. A session is one conversation with Claude Code, saved so you can resume it. There are also new patterns for spotting account and organization IDs.
Why
This points toward sessions recording which organization or account they belong to, for example to check a session when it is resumed under different sign-in details.
Names in the bundleCLAUDE_CODE_OAUTH_TOKEN
CLAUDE_CODE_OAUTH_TOKEN
Authentication modified, medium confidence
5. `CLAUDE_CODE_OAUTH_TOKEN` environment variable. A long-lived OAuth token generated by [`claude setup-token`](#generate-a-long-lived-token). Use this for CI pipelines and scripts where browser login isn't available. If you run `/login` w…see the edit
CLAUDE_CODE_OAUTH_TOKEN
All settings modified, medium confidence
* Variables that set your claude.ai sign-in, such as [`CLAUDE_CODE_OAUTH_TOKEN`, `CLAUDE_CODE_OAUTH_REFRESH_TOKEN`, and `CLAUDE_CODE_OAUTH_SCOPES`](https://code.claude.com/docs/en/env-vars#variables).see the edit
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not clear whether Claude Code writes these session markers yet or what it does with them.
Anthropic's documentation agrees
CLAUDE_CODE_OAUTH_TOKEN on Authentication