claude --session-id

Use a specific session UUID.

Example

claude --session-id "550e8400-e29b-41d4-a716-446655440000"

Source: Claude Code CLI reference, checked 2026-10-24.

More flags

  • --fork-session: When resuming, create a new session ID instead of reusing the original.
  • --effort: Set the effort level for the session.
  • --worktree, -w: Start in an isolated git worktree.

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