What probably matters to youSection of the release
Unclear The finding does not say what either list is used for.
What
The environment variable CLAUDE_CODE_SUBAGENT_MODEL_FORCE has been added to a list of variables that also includes CLAUDE_CONFIG_DIR and AWS and GCP cloud settings. Environment variables are named settings passed to a program when it is launched. A subagent is a helper that Claude Code starts to handle part of a task.
Separately, RUNNER_ENVIRONMENT, a variable set by GitHub Actions, was added next to GITHUB_ACTIONS in another list of environment variables.
Why
CLAUDE_CODE_SUBAGENT_MODEL_FORCE is now handled alongside other configuration variables such as CLAUDE_CONFIG_DIR.
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed sinceAnthropic's documentation has since written up CLAUDE_CODE_SUBAGENT_MODEL_FORCE, on Model configuration.| `CLAUDE_CODE_SUBAGENT_MODEL` | The default model for [subagents](/docs/en/sub-agents#choose-a-model), [agent team](/docs/en/agent-teams#specify-teammates-and-models) teammates, and [workflow](/docs/en/workflows) agents that aren't assign…model-configsee the edit
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding does not say what either list is used for.
Anthropic's documentation agreesAnthropic's documentation has since written up CLAUDE_CODE_SUBAGENT_MODEL_FORCE, on Model configuration.
