diff --git a/src/data.js b/src/data.js
index 9273746..d01ad22 100644
--- a/src/data.js
+++ b/src/data.js
@@ -2274,9 +2274,9 @@ function getDailyStats(sessions) {
             if (entry.timestamp) {
               ts = typeof entry.timestamp === 'number' ? entry.timestamp : new Date(entry.timestamp).getTime();
             }
-            if (!ts || ts < 1000000000000) continue; // skip invalid
+            if (!ts || ts < 1000000000000) continue;
             const day = fmtLocalDay(ts);
-            msgsByDay[day] = (msgsByDay[day] || 0) + 1;
+            if (entry.type === 'user') msgsByDay[day] = (msgsByDay[day] || 0) + 1;
             if (!tsByDay[day]) tsByDay[day] = { first: ts, last: ts };
             if (ts < tsByDay[day].first) tsByDay[day].first = ts;
             if (ts > tsByDay[day].last) tsByDay[day].last = ts;
diff --git a/src/frontend/app.js b/src/frontend/app.js
index aa624ae..dbe52d4 100644
--- a/src/frontend/app.js
+++ b/src/frontend/app.js
@@ -2657,7 +2657,7 @@ async function renderLeaderboard(container) {
     // Today stats
     html += '<div class="lb-section-title">Today</div>';
     html += '<div class="lb-stats-grid">';
-    html += '<div class="lb-stat"><div class="lb-stat-value">' + data.today.messages + '</div><div class="lb-stat-label">messages</div></div>';
+    html += '<div class="lb-stat"><div class="lb-stat-value">' + data.today.messages + '</div><div class="lb-stat-label">prompts</div></div>';
     html += '<div class="lb-stat"><div class="lb-stat-value">' + data.today.hours.toFixed(1) + 'h</div><div class="lb-stat-label">agent time</div></div>';
     html += '<div class="lb-stat"><div class="lb-stat-value">' + data.today.sessions + '</div><div class="lb-stat-label">sessions</div></div>';
     html += '<div class="lb-stat"><div class="lb-stat-value">$' + data.today.cost.toFixed(2) + '</div><div class="lb-stat-label">cost</div></div>';
@@ -2666,7 +2666,7 @@ async function renderLeaderboard(container) {
     // All time
     html += '<div class="lb-section-title">All Time</div>';
     html += '<div class="lb-stats-grid">';
-    html += '<div class="lb-stat"><div class="lb-stat-value">' + data.totals.messages.toLocaleString() + '</div><div class="lb-stat-label">messages</div></div>';
+    html += '<div class="lb-stat"><div class="lb-stat-value">' + data.totals.messages.toLocaleString() + '</div><div class="lb-stat-label">prompts</div></div>';
     html += '<div class="lb-stat"><div class="lb-stat-value">' + data.totals.hours.toFixed(0) + 'h</div><div class="lb-stat-label">agent time</div></div>';
     html += '<div class="lb-stat"><div class="lb-stat-value">' + data.totals.sessions + '</div><div class="lb-stat-label">sessions</div></div>';
     html += '<div class="lb-stat"><div class="lb-stat-value">$' + data.totals.cost.toFixed(2) + '</div><div class="lb-stat-label">cost</div></div>';