Function isPromptTooLongMessage

src/services/api/errors.ts:64–77

(msg: AssistantMessage)

export const PROMPT_TOO_LONG_ERROR_MESSAGE = 'Prompt is too long'

export function isPromptTooLongMessage(msg: AssistantMessage): boolean {
  if (!msg.isApiErrorMessage) {
    return false
  }
  const content = msg.message.content
  if (!Array.isArray(content)) {
    return false
  }
  return content.some(
    block =>
      block.type === 'text' &&
      block.text.startsWith(PROMPT_TOO_LONG_ERROR_MESSAGE),
  )
}

/**
 * Parse actual/limit token counts from a raw prompt-too-long API error