Function userMessageToMessageParam

source code/services/api/claude.ts:590–633

(
  message: UserMessage,
  addCache = false,
  enablePromptCaching: boolean,
  querySource?: QuerySource,
)

}

export function userMessageToMessageParam(
  message: UserMessage,
  addCache = false,
  enablePromptCaching: boolean,
  querySource?: QuerySource,
): MessageParam {
  if (addCache) {
    if (typeof message.message.content === 'string') {
      return {
        role: 'user',
        content: [
          {
            type: 'text',
            text: message.message.content,
            ...(enablePromptCaching && {
              cache_control: getCacheControl({ querySource }),
            }),
          },
        ],
      }
    } else {
      return {
        role: 'user',
        content: message.message.content.map((_, i) => ({
          ..._,
          ...(i === message.message.content.length - 1
            ? enablePromptCaching
              ? { cache_control: getCacheControl({ querySource }) }
              : {}
            : {}),
        })),
      }
    }
  }
  // Clone array content to prevent in-place mutations (e.g., insertCacheEditsBlock's
  // splice) from contaminating the original message. Without cloning, multiple calls
  // to addCacheBreakpoints share the same array and each splices in duplicate cache_edits.
  return {
    role: 'user',
    content: Array.isArray(message.message.content)
      ? [...message.message.content]
      : message.message.content,
  }
}

export function assistantMessageToMessageParam(
  message: AssistantMessage,