Added nono profiles & orca integration - Added some extensions to start working on

extensions/shared/context-utilization.ts

@@ -0,0 +1,47 @@
+/** Compact, defensive context-window utilization formatting for child agents. */
+
+export interface ContextUtilization {
+  /** Current conversation context occupancy; null while it is unknown after compaction. */
+  tokens?: number | null;
+  /** Capacity of the model currently serving the conversation. */
+  contextWindow?: number | null;
+}
+
+function usableTokens(value: number | null | undefined) {
+  return typeof value === "number" && Number.isFinite(value) && value >= 0
+    ? value
+    : undefined;
+}
+
+function usableCapacity(value: number | null | undefined) {
+  return typeof value === "number" && Number.isFinite(value) && value > 0
+    ? value
+    : undefined;
+}
+
+export function contextPercent(usage: ContextUtilization) {
+  const tokens = usableTokens(usage.tokens);
+  const capacity = usableCapacity(usage.contextWindow);
+  if (tokens === undefined || capacity === undefined) return undefined;
+  return Math.round(Math.min(100, Math.max(0, (tokens / capacity) * 100)));
+}
+
+export function formatCompactTokens(count: number) {
+  if (count < 1000) return Math.round(count).toString();
+  if (count < 10000) return `${(count / 1000).toFixed(1)}k`;
+  if (count < 1000000) return `${Math.round(count / 1000)}k`;
+  return `${(count / 1000000).toFixed(1)}M`;
+}
+
+/**
+ * Render `%/capacity`. If occupancy is temporarily unknown (notably directly
+ * after compaction), retain the useful model capacity as `?%/capacity`. If no
+ * valid capacity is available, omit the statistic because no percentage can
+ * be computed.
+ */
+export function formatContextUtilization(usage: ContextUtilization) {
+  const capacity = usableCapacity(usage.contextWindow);
+  if (capacity === undefined) return "";
+  const percent = contextPercent(usage);
+  return `${percent === undefined ? "?" : percent}%/${formatCompactTokens(capacity)}`;
+}