Claude Code has introduced a new 'fork' subagent type that inherits the conversation and prompt cache, significantly reducing costs by allowing subsequent agents to read from the cache rather than re-processing the entire prompt. This change, effective in version 2.1.232, addresses the high token usage previously associated with starting subagents from scratch. The update also clarifies the distinction between the 'fork' concept in skill frontmatter, the '/fork' slash command (which now copies the conversation to a new background session), and the new 'fork' subagent type. AI
IMPACT Reduces operational costs for users of Claude Code's subagent functionality.
RANK_REASON Product update for a specific AI development tool.
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