Add usage commands, a vendor-neutral usage format and a knowledge base

internal/agents/codex.go

@@ -225,36 +225,24 @@ func (m *Manager) readCodexRateLimit() {
 }
 
 func (m *Manager) setCodexRateLimit(r codex.RateLimitSnapshot) {
-	m.mu.Lock()
-	m.rateLimits[api.Codex] = codexRateLimit(r)
-	m.mu.Unlock()
-	m.store.Broadcast(api.Event{Kind: "admin.health", Actor: "byre", Payload: map[string]any{}})
+	m.setVendorUsage(api.Codex, codexUsage(r))
 }
 
-func codexRateLimit(r codex.RateLimitSnapshot) map[string]any {
-	status := "allowed"
+func codexUsage(r codex.RateLimitSnapshot) api.Usage {
+	u := api.Usage{UpdatedAt: time.Now(), Windows: []api.UsageWindow{}}
 	if r.RateLimitReachedType != "" {
-		status = "rejected"
+		u.Rejected = new(string(r.RateLimitReachedType))
 	}
-	windows := map[string]any{}
-	for name, w := range map[string]*codex.RateLimitWindow{"primary": r.Primary, "secondary": r.Secondary} {
-		if w == nil {
+	for _, w := range []struct {
+		name string
+		w    *codex.RateLimitWindow
+	}{{"primary", r.Primary}, {"secondary", r.Secondary}} {
+		if w.w == nil {
 			continue
 		}
-		window := map[string]any{"utilization": float64(w.UsedPercent) / 100}
-		if w.ResetsAt != 0 {
-			window["resetsAt"] = w.ResetsAt
-		}
-		if w.WindowDurationMins != 0 {
-			window["windowMins"] = w.WindowDurationMins
-		}
-		windows[name] = window
+		u.Windows = append(u.Windows, percentWindow(w.name, float64(w.w.UsedPercent)/100, w.w.ResetsAt, w.w.WindowDurationMins*60))
 	}
-	info := map[string]any{"status": status, "unifiedWindows": windows, "planType": r.PlanType}
-	if r.RateLimitReachedType != "" {
-		info["rateLimitType"] = r.RateLimitReachedType
-	}
-	return info
+	return u
 }
 
 func (m *Manager) codexTurnCompleted(ctx context.Context, l *live, s *codex.Session, turn codex.Turn) error {