Function normalizeAssistantMessageForSDK

src/utils/messages/mappers.ts:260–290

* Normalizes tool inputs in assistant message content for SDK consumption. * Specifically injects plan content into ExitPlanModeV2 tool inputs since * the V2 tool reads plan from file instead of input, but SDK users expect * tool_input.plan to exist.

(
  message: AssistantMessage,
)

 * tool_input.plan to exist.
 */
function normalizeAssistantMessageForSDK(
  message: AssistantMessage,
): AssistantMessage['message'] {
  const content = message.message.content
  if (!Array.isArray(content)) {
    return message.message
  }

  const normalizedContent = content.map((block): BetaContentBlock => {
    if (block.type !== 'tool_use') {
      return block
    }

    if (block.name === EXIT_PLAN_MODE_V2_TOOL_NAME) {
      const plan = getPlan()
      if (plan) {
        return {
          ...block,
          input: { ...(block.input as Record<string, unknown>), plan },
        }
      }
    }

    return block
  })

  return {
    ...message.message,
    content: normalizedContent,
  }
}