Function renderTranscriptEntryMemoized

packages/cli/src/pi-transcript.ts:1216–1238

(
  entry: MakaPiTranscriptEntry,
  width: number,
  offScreen: boolean,
)

// or a later render would serve corrupted content for that entry. The only
// caller, renderMakaPiTranscript, spreads the lines into its own buffer.
function renderTranscriptEntryMemoized(
  entry: MakaPiTranscriptEntry,
  width: number,
  offScreen: boolean,
): string[] {
  // Off-screen entries live in terminal scrollback, which is immutable: any
  // change to their rendered lines forces pi-tui's differential renderer into a
  // scrollback-clearing full redraw (#1135). Serving the cached render keeps
  // the display consistent with what's already in the terminal. The underlying
  // entry state still updates — only the visual output is frozen. A width
  // change already triggered a pi-tui full redraw (re-anchoring viewportTop to
  // the tail), so a stale-width cache won't be served.
  if (offScreen) {
    const cached = transcriptEntryRenderCache.get(entry);
    if (cached && cached.width === width) return cached.lines;
  }
  const signature = transcriptEntrySignature(entry, width);
  const cached = transcriptEntryRenderCache.get(entry);
  if (cached && cached.signature === signature) return cached.lines;
  const lines = renderTranscriptEntryBlock(entry, width);
  transcriptEntryRenderCache.set(entry, { signature, lines, width });
  return lines;
}

function renderTranscriptEntryBlock(entry: MakaPiTranscriptEntry, width: number): string[] {
  switch (entry.kind) {