+function normalizeText(text) {
+  const trimmed = text.trim();
+  if (!trimmed) return "";
+  return trimmed.length > cfg.captureMaxLength ? trimmed.slice(0, cfg.captureMaxLength) : trimmed;
+}
+
 function normalizeLastAssistantMessage(value) {
-  const text = extractTextFromContent(value).trim();
-  if (!text) return "";
-  return text.length > cfg.captureMaxLength ? text.slice(0, cfg.captureMaxLength) : text;
+  const text = extractTextFromContent(value);
+  return normalizeText(text);
 }
 
 ...
 
 const alreadyCapturedInTranscript = newTurns.some(
-  (turn) => turn.role === "assistant" && hashText(turn.text) === hash,
+  (turn) => turn.role === "assistant" && hashText(normalizeText(turn.text)) === hash,
 ) && allNewTranscriptTurnsAppended;

-const allNewTranscriptTurnsAppended = added >= newTurns.length;
+const allNewTranscriptTurnsAppended = added === newTurns.length;