Function parsePromptTooLongTokenCounts

src/services/api/errors.ts:85–96

(rawMessage: string)

 * have different casing (Vertex), so this is intentionally lenient.
 */
export function parsePromptTooLongTokenCounts(rawMessage: string): {
  actualTokens: number | undefined
  limitTokens: number | undefined
} {
  const match = rawMessage.match(
    /prompt is too long[^0-9]*(\d+)\s*tokens?\s*>\s*(\d+)/i,
  )
  return {
    actualTokens: match ? parseInt(match[1]!, 10) : undefined,
    limitTokens: match ? parseInt(match[2]!, 10) : undefined,
  }
}

/**
 * Returns how many tokens over the limit a prompt-too-long error reports,