Function truncateToolOutput

packages/opencode/src/session/message-v2.ts:49–53

(text: string, maxChars?: number)

export { isMedia }

function truncateToolOutput(text: string, maxChars?: number) {
  if (!maxChars || text.length <= maxChars) return text
  const omitted = text.length - maxChars
  return `${text.slice(0, maxChars)}\n[Tool output truncated for compaction: omitted ${omitted} chars]`
}

export const Event = {
  Updated: SessionV1.Event.MessageUpdated,