diff --git a/solixauto/cli.py b/solixauto/cli.py
index 1ca8454..b948beb 100644
--- a/solixauto/cli.py
+++ b/solixauto/cli.py
@@ -663,6 +663,51 @@ def cmd_status(args):
         print("stopped")
 
 
+def record_manual_event(profile_path, target, desired):
+    import json
+    import time
+    from datetime import datetime
+
+    from .profiles import load_yaml as _load
+
+    try:
+        identity = (_load(profile_path).get("identity") or {})
+    except Exception:
+        identity = {}
+
+    event = {
+        "epoch": time.time(),
+        "when": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
+        "state": bool(desired),
+        "cause": "manual",
+        "profile": None,
+        "rule": None,
+        "condition": None,
+        "reason": "switched manually from the command line",
+        "target": identity.get("name") or identity.get("model") or target.host,
+        "target_channel": target.channel,
+        "source": None,
+        "source_serial": None,
+        "values": {},
+    }
+
+    path = paths.STATE_DIR / "events-manual.json"
+    try:
+        paths.STATE_DIR.mkdir(parents=True, exist_ok=True)
+        history = []
+        if path.exists():
+            try:
+                history = json.loads(path.read_text(encoding="utf-8"))
+            except Exception:
+                history = []
+        if not isinstance(history, list):
+            history = []
+        history.append(event)
+        path.write_text(json.dumps(history[-200:]), encoding="utf-8")
+    except Exception:
+        pass
+
+
 def cmd_switch(args):
     from .shelly import ShellyTarget
     import aiohttp
@@ -704,6 +749,8 @@ def cmd_switch(args):
             except Exception as err:
                 fail(f"{type(err).__name__}: {err}")
 
+            record_manual_event(path, target, desired)
+
             await asyncio.sleep(1.0)
             confirmed = await target.get_state(session)
             if confirmed is None:
diff --git a/solixauto/engine.py b/solixauto/engine.py
index ef4df55..2f1d2fa 100644
--- a/solixauto/engine.py
+++ b/solixauto/engine.py
@@ -8,12 +8,15 @@ from datetime import datetime
 import aiohttp
 
 from . import paths
-from .profiles import load_yaml
+from .profiles import load_yaml, slugify
 from .notify import Notifier, render
 from .rules import derived_values, format_duration, validate
 from .shelly import ShellyTarget
 
 
+EVENT_HISTORY = 200
+
+
 async def interruptible_sleep(seconds):
     remaining = float(seconds or 0)
     while remaining > 0:
@@ -150,7 +153,15 @@ class Engine:
         return None
 
     async def apply(
-        self, session, desired, reason, now, rule=None, variables=None, force=False
+        self,
+        session,
+        desired,
+        reason,
+        now,
+        rule=None,
+        variables=None,
+        force=False,
+        cause="rule",
     ):
         if self.last_commanded is desired:
             return False
@@ -176,6 +187,7 @@ class Engine:
         self.recent_actions.append(now)
         self.report(f"turned {self._word(desired)} - {reason}")
         self.save_state(desired, reason)
+        self.record_event(desired, reason, rule, variables, cause=cause)
         await self.notify(desired, rule, variables, event="action")
         return True
 
@@ -341,6 +353,7 @@ class Engine:
             "restored after telemetry recovered",
             now,
             force=True,
+            cause="recovered",
         )
 
     async def check_floor(self, session, variables, now):
@@ -377,6 +390,7 @@ class Engine:
                 now,
                 variables=variables,
                 force=True,
+                cause="floor",
             )
             return True
 
@@ -404,6 +418,7 @@ class Engine:
             now,
             variables=variables,
             force=True,
+            cause="floor",
         )
 
         if floor.notify:
@@ -445,6 +460,58 @@ class Engine:
             force=True,
         )
 
+    def record_event(self, desired, reason, rule, variables, cause="rule"):
+        source_identity = self.anker_profile.get("identity", {})
+        target_identity = self.target.profile.get("identity", {})
+
+        detail = {}
+        for key in (
+            "battery_soc",
+            "pv_total",
+            "pv_surplus",
+            "output_power_total",
+            "ac_input_power",
+        ):
+            value = (variables or {}).get(key)
+            if isinstance(value, (int, float)) and not isinstance(value, bool):
+                detail[key] = round(value)
+
+        event = {
+            "epoch": time.time(),
+            "when": stamp(),
+            "state": bool(desired),
+            "cause": cause,
+            "profile": self.profile.name,
+            "rule": rule.name if rule else None,
+            "condition": rule.when_source if rule else None,
+            "reason": reason,
+            "target": target_identity.get("name")
+            or target_identity.get("model")
+            or self.target.host,
+            "target_channel": self.target.channel,
+            "source": source_identity.get("name")
+            or source_identity.get("model")
+            or source_identity.get("serial"),
+            "source_serial": source_identity.get("serial"),
+            "values": detail,
+        }
+
+        path = paths.STATE_DIR / f"events-{slugify(self.profile.name)}.json"
+        try:
+            paths.STATE_DIR.mkdir(parents=True, exist_ok=True)
+            history = []
+            if path.exists():
+                try:
+                    history = json.loads(path.read_text(encoding="utf-8"))
+                except Exception:
+                    history = []
+            if not isinstance(history, list):
+                history = []
+            history.append(event)
+            path.write_text(json.dumps(history[-EVENT_HISTORY:]), encoding="utf-8")
+        except Exception:
+            pass
+
     def publish_live(self, variables, age):
         identity = self.anker_profile.get("identity", {})
         serial = identity.get("serial") or "unknown"
@@ -531,7 +598,11 @@ class Engine:
                     self.pre_stale_state = self.last_commanded
                     self.stale_action_state = self.profile.safe_state
                 await self.apply(
-                    session, self.profile.safe_state, "mqtt disconnected safe state", now
+                    session,
+                    self.profile.safe_state,
+                    "connection to Anker lost",
+                    now,
+                    cause="stale",
                 )
 
             if not self.stale_notified:
@@ -597,7 +668,11 @@ class Engine:
                     self.pre_stale_state = self.last_commanded
                     self.stale_action_state = self.profile.safe_state
                 await self.apply(
-                    session, self.profile.safe_state, "stale telemetry safe state", now
+                    session,
+                    self.profile.safe_state,
+                    "telemetry went stale",
+                    now,
+                    cause="stale",
                 )
             return
 
diff --git a/solixauto/monitor.py b/solixauto/monitor.py
index c9ed959..d61f06f 100644
--- a/solixauto/monitor.py
+++ b/solixauto/monitor.py
@@ -17,7 +17,14 @@ class Sampler:
     def __init__(self, interval=5.0, history=HISTORY_SIZE):
         self.interval = interval
         self.history = deque(maxlen=history)
-        self.snapshot = {"anker": [], "shelly": [], "updated": None, "engine": False}
+        self.snapshot = {
+            "anker": [],
+            "shelly": [],
+            "events": [],
+            "multi": False,
+            "updated": None,
+            "engine": False,
+        }
         self.lock = threading.Lock()
         self.stop_event = threading.Event()
         self.thread = None
@@ -196,9 +203,26 @@ class Sampler:
             )
         return devices
 
+    def _events(self):
+        events = []
+        if not paths.STATE_DIR.exists():
+            return events
+
+        for path in sorted(paths.STATE_DIR.glob("events-*.json")):
+            try:
+                data = json.loads(path.read_text(encoding="utf-8"))
+            except Exception:
+                continue
+            if isinstance(data, list):
+                events.extend(entry for entry in data if isinstance(entry, dict))
+
+        events.sort(key=lambda entry: entry.get("epoch", 0), reverse=True)
+        return events[:60]
+
     def _sample(self):
         anker = self._anker_devices()
         shelly = self._shelly_devices()
+        events = self._events()
 
         point = {"t": time.time()}
         for device in anker:
@@ -216,6 +240,8 @@ class Sampler:
             self.snapshot = {
                 "anker": anker,
                 "shelly": shelly,
+                "events": events,
+                "multi": len(anker) > 1 or len(shelly) > 1,
                 "updated": time.strftime("%H:%M:%S"),
                 "engine": any(d["live"] for d in anker),
                 "interval": self.interval,
@@ -558,6 +584,106 @@ PAGE = """<!doctype html>
 
   canvas { width: 100%; height: 300px; display: block; }
 
+  .event-scroll {
+    max-height: 232px;
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: var(--rule) transparent;
+  }
+
+  .event-scroll::-webkit-scrollbar { width: 9px; }
+  .event-scroll::-webkit-scrollbar-track { background: transparent; }
+  .event-scroll::-webkit-scrollbar-thumb {
+    background: var(--rule);
+    border: 2px solid var(--panel-raised);
+  }
+  .event-scroll::-webkit-scrollbar-thumb:hover { background: var(--ink-soft); }
+
+  .event {
+    display: flex;
+    align-items: baseline;
+    gap: 12px;
+    padding: 9px 12px 9px 0;
+    border-top: 1px solid var(--rule);
+    white-space: nowrap;
+  }
+
+  .event:first-child { border-top: none; }
+
+  .event-time {
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    font-size: 12px;
+    color: var(--ink-soft);
+    font-variant-numeric: tabular-nums;
+    flex: 0 0 auto;
+  }
+
+  .event-state {
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    font-size: 10px;
+    letter-spacing: 0.08em;
+    text-align: center;
+    padding: 1px 0;
+    border: 1px solid currentColor;
+    flex: 0 0 38px;
+  }
+
+  .event-state.on { color: var(--charge); }
+  .event-state.off { color: var(--ink-soft); }
+
+  .event-target {
+    font-size: 13px;
+    font-weight: 600;
+    flex: 0 0 auto;
+    max-width: 20ch;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+
+  .event-why {
+    font-size: 13px;
+    color: var(--ink);
+    flex: 1 1 auto;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    min-width: 0;
+  }
+
+  .event-cause {
+    display: inline-block;
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    font-size: 9px;
+    letter-spacing: 0.12em;
+    text-transform: uppercase;
+    padding: 1px 6px;
+    margin-right: 7px;
+    border: 1px solid var(--rule);
+    color: var(--ink-soft);
+    vertical-align: 1px;
+  }
+
+  .event-cause.floor { color: var(--alert); border-color: currentColor; }
+  .event-cause.stale { color: var(--solar); border-color: currentColor; }
+
+  .event-detail {
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    font-size: 11px;
+    color: var(--ink-soft);
+    flex: 0 0 auto;
+  }
+
+  .event-day {
+    font-family: ui-monospace, "SF Mono", Menlo, monospace;
+    font-size: 10px;
+    letter-spacing: 0.14em;
+    text-transform: uppercase;
+    color: var(--ink-soft);
+    padding: 14px 0 6px;
+    border-top: 1px solid var(--rule);
+  }
+
+  .event-day:first-child { border-top: none; padding-top: 0; }
+
   .empty {
     font-family: ui-monospace, "SF Mono", Menlo, monospace;
     font-size: 12px;
@@ -586,18 +712,23 @@ PAGE = """<!doctype html>
   </header>
 
   <section>
-    <h2>Anker SOLIX</h2>
+    <h2>Anker devices</h2>
     <div id="anker"></div>
   </section>
 
   <section>
-    <h2>Shelly switches</h2>
+    <h2>Shelly devices</h2>
     <div id="shelly"></div>
   </section>
 
+  <section>
+    <h2>Actions</h2>
+    <div class="event-scroll"><div id="events"></div></div>
+  </section>
+
   <section>
     <div class="chart-head">
-      <h2 style="margin:0">Recent history</h2>
+      <h2 style="margin:0">History</h2>
       <div class="legend">
         <span><i class="swatch sw-solar"></i>solar W</span>
         <span><i class="swatch sw-grid"></i>grid in W</span>
@@ -806,6 +937,82 @@ function renderShelly(devices) {
     + '</tbody></table>';
 }
 
+const CAUSE_LABEL = {
+  rule: 'rule',
+  floor: 'safety floor',
+  stale: 'telemetry lost',
+  recovered: 'recovered',
+  manual: 'manual'
+};
+
+function dayLabel(epoch) {
+  const d = new Date(epoch * 1000);
+  const today = new Date();
+  const yesterday = new Date(today.getTime() - 86400000);
+  const same = (a, b) => a.toDateString() === b.toDateString();
+  if (same(d, today)) return 'Today';
+  if (same(d, yesterday)) return 'Yesterday';
+  return d.toLocaleDateString(undefined, { weekday: 'short', month: 'short', day: 'numeric' });
+}
+
+function clockLabel(epoch) {
+  const d = new Date(epoch * 1000);
+  return String(d.getHours()).padStart(2, '0') + ':' + String(d.getMinutes()).padStart(2, '0');
+}
+
+function eventDetail(e) {
+  const v = e.values || {};
+  const bits = [];
+  if (v.battery_soc !== undefined) bits.push('battery ' + v.battery_soc + '%');
+  if (v.pv_total !== undefined) bits.push('solar ' + v.pv_total + 'W');
+  if (v.output_power_total !== undefined) bits.push('load ' + v.output_power_total + 'W');
+  if (v.ac_input_power) bits.push('grid ' + v.ac_input_power + 'W');
+  if (!bits.length) return '';
+  const who = e.source ? esc(e.source) + ': ' : '';
+  return who + bits.join(', ');
+}
+
+function renderEvents(events, multi) {
+  const box = document.getElementById('events');
+
+  if (!events || !events.length) {
+    box.innerHTML = '<p class="empty">Every change to a plug will appear here '
+      + 'with the reason for it.</p>';
+    return;
+  }
+
+  let html = '';
+  let lastDay = null;
+
+  events.forEach(e => {
+    const day = dayLabel(e.epoch);
+    if (day !== lastDay) {
+      html += '<div class="event-day">' + day + '</div>';
+      lastDay = day;
+    }
+
+    const cause = e.cause || 'rule';
+    const label = CAUSE_LABEL[cause] || cause;
+    const why = e.rule ? esc(e.rule) : esc(e.reason || 'changed');
+    const detail = eventDetail(e);
+    const tip = [e.condition, detail].filter(Boolean).join('  |  ');
+
+    html += '<div class="event"' + (tip ? ' title="' + esc(tip) + '"' : '') + '>'
+      + '<div class="event-time">' + clockLabel(e.epoch) + '</div>'
+      + '<div class="event-state ' + (e.state ? 'on' : 'off') + '">'
+      + (e.state ? 'ON' : 'OFF') + '</div>'
+      + '<div class="event-target">' + esc(e.target || 'switch') + '</div>'
+      + '<div class="event-why">'
+      + '<span class="event-cause ' + cause + '">' + label + '</span>'
+      + why
+      + '</div>'
+      + (detail ? '<div class="event-detail">' + detail + '</div>' : '')
+      + '</div>';
+  });
+
+  box.innerHTML = html;
+}
+
 function drawChart(history, devices) {
   const canvas = document.getElementById('chart');
   const ratio = window.devicePixelRatio || 1;
@@ -928,6 +1135,7 @@ async function refresh() {
     document.getElementById('dot').className = data.engine ? 'dot' : 'dot stale';
     renderAnker(data.anker);
     renderShelly(data.shelly);
+    renderEvents(data.events, data.multi);
     drawChart(data.history, data.anker);
   } catch (err) {
     failures++;