Function handleToolCall

cli/src/utils/sdk-event-handlers.ts:331–356

(state: EventHandlerState, event: PrintModeToolCall)

}

const handleToolCall = (state: EventHandlerState, event: PrintModeToolCall) => {
  // Close any open native reasoning blocks when a tool call happens
  // (agent may go directly from thinking to tool calls without emitting text)
  // This must happen BEFORE any early returns (spawn_agents, hidden tools)
  if (event.parentAgentId && event.agentId) {
    // For agent tool calls, close reasoning in that specific agent
    state.message.updater.updateAiMessageBlocks((blocks) =>
      closeNativeReasoningInAgent(blocks, event.agentId as string),
    )
  } else if (!event.parentAgentId) {
    // For root tool calls, close reasoning at root level
    state.message.updater.updateAiMessageBlocks(closeNativeReasoningBlock)
  }

  if (event.toolName === 'spawn_agents' && event.input?.agents) {
    handleSpawnAgentsToolCall(state, event)
    return
  }

  if (isHiddenToolName(event.toolName)) {
    return
  }

  handleRegularToolCall(state, event)
  updateStreamingAgents(state, { add: event.toolCallId })
}

/**
 * Recursively finds and updates agent blocks that match a spawn_agents tool call.