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Reading a new release v2.1.251 Analysing changes · 2/5 Sorting the findings · 1/4 steps 470 findings $18.91 so far

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 v2.1.200

Remote Workflow via Environment Variables

What

Server-launched remote sessions (CCR) can now receive and execute a workflow script delivered through environment variables, enabling fully server-initiated workflow runs without interactive invocation.

Details
  • CLAUDE_REMOTE_WORKFLOW_SCRIPT: The workflow script content (as a string)
  • CLAUDE_REMOTE_WORKFLOW_ARGS: Optional JSON-encoded args to pass to the script
  • CLAUDE_WORKFLOW_NAME_ONLY: Restricts workflow execution to named bundled workflows only
  • Gated to sessions where CLAUDE_CODE_REMOTE is set; emits an error if called in a local session
  • Validates the script is deterministic (no Date.now(), Math.random(), or new Date())
  • Compiles and runs via the same workflow engine as the interactive Workflow tool
  • Returns JSON-encoded results or structured error codes back through the session
Status

Only active in remote CCR sessions; the internal slash command is hidden with no interactive use.

Evidence

Remote workflow handler (search for "CLAUDE_REMOTE_WORKFLOW_SCRIPT", "this command only runs inside a remote (CCR) session", "workflow scripts must be deterministic")

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

See this entry in the whole of v2.1.200 →