Function getCompactionReminderAttachment

src/utils/attachments.ts:4013–4037

(
  messages: Message[],
  model: string,
)

}

export function getCompactionReminderAttachment(
  messages: Message[],
  model: string,
): Attachment[] {
  if (!getFeatureValue_CACHED_MAY_BE_STALE('tengu_marble_fox', false)) {
    return []
  }

  if (!isAutoCompactEnabled()) {
    return []
  }

  const contextWindow = getContextWindowForModel(model, getSdkBetas())
  if (contextWindow < 1_000_000) {
    return []
  }

  const effectiveWindow = getEffectiveContextWindowSize(model)
  const usedTokens = tokenCountWithEstimation(messages)
  if (usedTokens < effectiveWindow * 0.25) {
    return []
  }

  return [{ type: 'compaction_reminder' }]
}

/**
 * Context-efficiency nudge. Injected after every N tokens of growth without