Function estimateTokens

server/src/utils/token-limiter.ts:122–127

(text: string)

 * Use Anthropic's API for precise counts when needed.
 */
export function estimateTokens(text: string): number {
  if (!text) return 0;
  // Conservative estimate: ~3.5 characters per token
  // This slightly overestimates which is safer than underestimating
  return Math.ceil(text.length / 3.5);
}

/**
 * Message turn structure (matches prompts.ts)