/** * Tool extraction utilities for parsing tool calls and results from JSONL content blocks. */ import type { ContentBlock, ToolCall, ToolResult } from '../types'; /** * Extract tool calls from content blocks. */export function extractToolCalls(content: ContentBlock[] | string): ToolCall[] {  if (typeof content === 'string') {    return [];  }   const toolCalls: ToolCall[] = [];   for (const block of content) {    if (block.type === 'tool_use' && block.id && block.name) {      const input = block.input ?? {};      const isTask = block.name === 'Task';       const toolCall: ToolCall = {        id: block.id,        name: block.name,        input,        isTask,      };       // Extract Task-specific info      if (isTask) {        toolCall.taskDescription = input.description as string | undefined;        toolCall.taskSubagentType = input.subagent_type as string | undefined;      }       toolCalls.push(toolCall);    }  }   return toolCalls;} /** * Extract tool results from content blocks. */export function extractToolResults(content: ContentBlock[] | string): ToolResult[] {  if (typeof content === 'string') {    return [];  }   const toolResults: ToolResult[] = [];   for (const block of content) {    if (block.type === 'tool_result' && block.tool_use_id) {      toolResults.push({        toolUseId: block.tool_use_id,        content: block.content ?? '',        isError: block.is_error ?? false,      });    }  }   return toolResults;}