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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 v2.1.248 27 Aug 2026

More environment variables carried into remote sessions

Under the hood

Useful2 Signal3

Cloud Sessions Notable

More environment variables get carried into remote sessions; none are set by default.

CLAUDE_CODE_DIR_SYNC_STREAMCLAUDE_CODE_RESTRICTED

What

The list of variables passed through to remote sessions grew, and one older group was dropped. None are set by default.

Details

Added: CLAUDE_CODE_REMOTE_HERMETIC_MODE (only honoured alongside CLAUDE_CODE_REMOTE), CLAUDE_CODE_HOME_SEED_HOLD_TIMEOUT_MS, CLAUDE_CODE_HOME_SEED_VERDICT_TIMEOUT_MS, CLAUDE_CODE_DISABLE_PLUGIN_FORWARDING, and CLAUDE_CODE_RESTRICTED, which is also injected as "1" under some conditions.
The config-directory list adds CLAUDE_CODE_DIR_SYNC_STREAM.
The remote workflow script, args and workflow-name-only variables no longer appear in this file.

Evidence

CLAUDE_CODE_HOME_SEED_VERDICT_TIMEOUT_MS

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

See this entry in the whole of v2.1.248 →