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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.224

Start a cloud session on a self-hosted environment with --environment

Use it now
Useful4 Signal4
Cloud Sessions Notable not in their notes

Start a cloud session on your own environment with claude --environment, plus hidden --ref and --on-branch companions.

--environment--pool--correlation-id--ref--on-branch
What

claude --environment <environment_id> starts a cloud session on one of your own self-hosted environments (ids look like ccpool_...). An id that does not parse is rejected with an explicit error. Hidden companions --pool (a deprecated alias), --correlation-id, --ref and --on-branch also exist.

Details
  • --bg cannot be combined with --environment; the two are separate backends and you get a dedicated message pointing at direct invocation.
  • The --bg argument filter strips --environment and --pool, including their =value forms, before forwarding the remaining arguments.
Usage
claude -p "fix the flaky test" --environment ccpool_abc123
Evidence

Create a new cloud session that runs on the given self-hosted environment (ccpool_...).

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.224 →