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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 v2.1.98

--exclude-dynamic-system-prompt-sections CLI Flag

What

Moves per-machine sections (cwd, environment info, memory paths, git status) from the system prompt into the first user message to improve prompt cache reuse across users.

Usage
claude --exclude-dynamic-system-prompt-sections
Details
  • Only applies when using the default system prompt (ignored with --system-prompt)
  • Particularly useful for teams or CI environments where multiple users/machines share cached prompts
  • Defaults to false (disabled)
Evidence

CLI flag (search for "--exclude-dynamic-system-prompt-sections")

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

See this entry in the whole of v2.1.98 →