Function hasThinkingBlocks

src/services/tokenEstimation.ts:45–63

* Check if messages contain thinking blocks

(
  messages: Anthropic.Beta.Messages.BetaMessageParam[],
)

 * Check if messages contain thinking blocks
 */
function hasThinkingBlocks(
  messages: Anthropic.Beta.Messages.BetaMessageParam[],
): boolean {
  for (const message of messages) {
    if (message.role === 'assistant' && Array.isArray(message.content)) {
      for (const block of message.content) {
        if (
          typeof block === 'object' &&
          block !== null &&
          'type' in block &&
          (block.type === 'thinking' || block.type === 'redacted_thinking')
        ) {
          return true
        }
      }
    }
  }
  return false
}

/**
 * Strip tool search-specific fields from messages before sending for token counting.