diff --git a/backend/agent/src/Monitor.Agent/AgentApp.cs b/backend/agent/src/Monitor.Agent/AgentApp.cs
index f2bda34..181ce9b 100644
--- a/backend/agent/src/Monitor.Agent/AgentApp.cs
+++ b/backend/agent/src/Monitor.Agent/AgentApp.cs
@@ -209,14 +209,6 @@ public sealed class AgentApp : IDisposable
                 async (_, request, _) => Result<TestRunResult>.Ok(new TestRunResult { Accepted = await _hub.DisconnectAsync(request.ProbeId.Value) }));
         }
 
-        if (Allow(MonitorMethods.ProbeAgentsChanged))
-        {
-            router.OnNotify(
-                MonitorMethods.ProbeAgentsChanged,
-                MonitorJsonContext.Default.ProbeAgentsResult,
-                (_, list, _) => _hub.RelayAgentsAsync(list));
-        }
-
         var options = new FleetLinkOptions
         {
             Server = new Uri(_config.Fleet.Server),
diff --git a/backend/agent/src/Monitor.Agent/DataPlane/Registries.cs b/backend/agent/src/Monitor.Agent/DataPlane/Registries.cs
index 4f97f85..fff6753 100644
--- a/backend/agent/src/Monitor.Agent/DataPlane/Registries.cs
+++ b/backend/agent/src/Monitor.Agent/DataPlane/Registries.cs
@@ -64,9 +64,6 @@ public sealed class ProbeSession : DataSession
 
     public long ConnectedAtUtcMs { get; init; }
 
-    /// <summary>Probe 自报的系统和架构（随列表同步一起来，只用于展示）；还没报过就是 null。</summary>
-    public PlatformInfo? Platform { get; set; }
-
     public RpcSession<PeerContext>? Rpc { get; set; }
 
     /// <summary>最近一次认证通过的 UDP 包的源地址（Agent 把单向数据发往这里）。</summary>
diff --git a/backend/agent/src/Monitor.Agent/Peer/PeerHub.cs b/backend/agent/src/Monitor.Agent/Peer/PeerHub.cs
index 1d8bf66..4392242 100644
--- a/backend/agent/src/Monitor.Agent/Peer/PeerHub.cs
+++ b/backend/agent/src/Monitor.Agent/Peer/PeerHub.cs
@@ -57,18 +57,6 @@ public sealed class BackendUplink
         await SafeAsync(() => session.NotifyAsync(MonitorMethods.TestStatus, parameters, MonitorJsonContext.Default.TestStatusParams, CancellationToken.None));
     }
 
-    /// <summary>代 Probe 向 Backend 取 Agent 列表（Probe 不认识 Backend）。链路断开时返回 fleet_node_offline。</summary>
-    public async ValueTask<Result<ProbeAgentsResult>> RequestProbeAgentsAsync(ProbeAgentsParams request, CancellationToken ct)
-    {
-        RpcSession<LinkContext>? session = _link?.CurrentSession;
-        if (session is null)
-        {
-            return Result<ProbeAgentsResult>.Fail(FleetErrors.NodeOffline, "the agent has no link to the backend");
-        }
-
-        return await session.RequestAsync(MonitorMethods.ProbeAgents, request, MonitorJsonContext.Default.ProbeAgentsParams, MonitorJsonContext.Default.ProbeAgentsResult, ct);
-    }
-
     private static async ValueTask SafeAsync(Func<ValueTask> send)
     {
         try
@@ -104,7 +92,7 @@ public sealed class PeerHub
 
     public PeerHub(SessionRegistry sessions, MonoClock clock, ChunkAssembler chunks, TaskManager tasks, BackendUplink uplink, TimeProvider time, INodeLog log)
     {
-        _router = BuildRouter(uplink);
+        _router = BuildRouter();
         _sessions = sessions;
         _clock = clock;
         _chunks = chunks;
@@ -220,7 +208,7 @@ public sealed class PeerHub
     /// <summary>当前连着的 Probe（心跳和 Backend 重连之后的补报都用它）。</summary>
     public IReadOnlyList<ConnectedProbe> ConnectedProbes() => [.. _sessions.All.Select(Describe)];
 
-    private static ConnectedProbe Describe(ProbeSession p) => new() { Id = new ProbeId(p.ProbeId), Version = p.Version, Remote = p.RemoteAddress, SinceUtcMs = p.ConnectedAtUtcMs, Platform = p.Platform };
+    private static ConnectedProbe Describe(ProbeSession p) => new() { Id = new ProbeId(p.ProbeId), Version = p.Version, Remote = p.RemoteAddress, SinceUtcMs = p.ConnectedAtUtcMs };
 
     public IReadOnlyList<string> ConnectedProbeIds() => [.. _sessions.All.Select(p => p.ProbeId)];
 
@@ -252,27 +240,6 @@ public sealed class PeerHub
         }
     }
 
-    /// <summary>Backend 的 Agent 列表变化时转交给所有 Probe（Probe 据此调整它连接的 Agent）。</summary>
-    public async ValueTask RelayAgentsAsync(ProbeAgentsResult list)
-    {
-        foreach (ProbeSession probe in _sessions.All)
-        {
-            if (probe.Rpc is not { } rpc)
-            {
-                continue;
-            }
-
-            try
-            {
-                await rpc.NotifyAsync(MonitorMethods.ProbeAgentsChanged, list, MonitorJsonContext.Default.ProbeAgentsResult, CancellationToken.None);
-            }
-            catch (Exception ex) when (ex is ObjectDisposedException or InvalidOperationException or IOException)
-            {
-                // 会话刚好结束
-            }
-        }
-    }
-
     private async ValueTask PushAsync(ProbeSession probe, LineTaskSet set, CancellationToken ct)
     {
         if (probe.Rpc is null)
@@ -300,21 +267,8 @@ public sealed class PeerHub
         }
     }
 
-    private static RpcRouter<PeerContext> BuildRouter(BackendUplink uplink) =>
+    private static RpcRouter<PeerContext> BuildRouter() =>
         new RpcRouter<PeerContext>()
-            .On(
-                MonitorMethods.ProbeAgents,
-                MonitorJsonContext.Default.ProbeAgentsParams,
-                MonitorJsonContext.Default.ProbeAgentsResult,
-                (context, request, ct) =>
-                {
-                    if (request.Platform is { } platform)
-                    {
-                        context.Session.Platform = platform;
-                    }
-
-                    return uplink.RequestProbeAgentsAsync(request, ct);
-                })
             .On(
                 MonitorMethods.Clock,
                 MonitorJsonContext.Default.ClockParams,
diff --git a/backend/openapi/v1.json b/backend/openapi/v1.json
index eb08ea3..336e303 100644
--- a/backend/openapi/v1.json
+++ b/backend/openapi/v1.json
@@ -4136,34 +4136,6 @@
           }
         }
       },
-      "BootstrapAgentDto": {
-        "required": [
-          "agent_id",
-          "host",
-          "tcp_port",
-          "spki"
-        ],
-        "type": "object",
-        "properties": {
-          "agent_id": {
-            "type": "string"
-          },
-          "host": {
-            "type": "string"
-          },
-          "tcp_port": {
-            "pattern": "^-?(?:0|[1-9]\\d*)$",
-            "type": [
-              "integer",
-              "string"
-            ],
-            "format": "int32"
-          },
-          "spki": {
-            "type": "string"
-          }
-        }
-      },
       "BuildDto": {
         "required": [
           "version",
@@ -6326,6 +6298,7 @@
           "created_at",
           "revoked_at",
           "revoked",
+          "online",
           "connections"
         ],
         "type": "object",
@@ -6345,6 +6318,9 @@
           "revoked": {
             "type": "boolean"
           },
+          "online": {
+            "type": "boolean"
+          },
           "connections": {
             "type": "array",
             "items": {
@@ -6357,7 +6333,7 @@
         "required": [
           "probe_id",
           "private_key",
-          "bootstrap",
+          "server",
           "limits"
         ],
         "type": "object",
@@ -6368,11 +6344,8 @@
           "private_key": {
             "type": "string"
           },
-          "bootstrap": {
-            "type": "array",
-            "items": {
-              "$ref": "#/components/schemas/BootstrapAgentDto"
-            }
+          "server": {
+            "type": "string"
           },
           "limits": {
             "$ref": "#/components/schemas/ProbeLimitsDto"
diff --git a/backend/probe/README.md b/backend/probe/README.md
index cfeb861..07805f0 100644
--- a/backend/probe/README.md
+++ b/backend/probe/README.md
@@ -1,16 +1,17 @@
 # Monitor Probe
 
-Probe 是网络测量的发起端，通常运行在家宽或其他需要观测的网络出口。它连接 Agent、执行线路任务，并把本端采集的原始数据交给 Agent 汇总上报。Probe 不直接连接 Backend，也不提供远程命令或文件管理功能。
+Probe 是网络测量的发起端，通常运行在家宽或其他需要观测的网络出口。它连接 Backend（身份、Agent 列表、状态）和 Agent（测量），执行线路任务，并把本端采集的原始数据交给 Agent 汇总上报。Probe 不提供远程命令或文件管理功能。
 
 ## 工作流程
 
 ```text
-Backend ──任务与节点列表──> Agent <──测量会话──> Probe
-                              │                     │
-                              └──汇总并上报数据 <───┘
+Backend ──任务──> Agent <──测量会话──> Probe
+   │  ▲           │                     │
+   │  └──汇总并上报数据 <───┘                     │
+   └─────Agent 列表、状态（Fleet 长连接）───────────┘
 ```
 
-Probe 使用面板生成的 `probe.json` 读取自身身份、首次连接用的 Agent 地址和本地测试限制。成功连接后，Agent 会同步可用节点列表；Probe 将列表缓存到同目录的 `agents.json`。`probe.json` 含私钥，请限制文件访问权限，不要提交到版本控制。
+Probe 使用面板生成的 `probe.json` 读取自身身份、面板地址（`server`）和本地测试限制。连上面板之后，面板下发要连接的 Agent 列表；Probe 将列表缓存到同目录的 `agents.json`，面板暂时连不上时靠它继续测量。`probe.json` 含私钥，请限制文件访问权限，不要提交到版本控制。
 
 ## 构建
 
diff --git a/backend/probe/src/Monitor.Probe/Link/AgentConnection.cs b/backend/probe/src/Monitor.Probe/Link/AgentConnection.cs
index 2a7661c..f01ad3d 100644
--- a/backend/probe/src/Monitor.Probe/Link/AgentConnection.cs
+++ b/backend/probe/src/Monitor.Probe/Link/AgentConnection.cs
@@ -15,7 +15,7 @@ namespace Monitor.Probe;
 public sealed record ConnectionEnv(NodeIdentity Identity, string ProbeId, ProbeLimits Limits, AgentDirectory Directory, MonoClock Clock, TimeProvider Time, INodeLog Log);
 
 /// <summary>
-/// 与一个 Agent 的点对点会话：认证握手 → 同步时钟 → 取 Agent 列表 → 按 Agent 下发的 <c>line_task_set</c> 运行角色 →
+/// 与一个 Agent 的点对点会话：认证握手 → 同步时钟 → 按 Agent 下发的 <c>line_task_set</c> 运行角色 →
 /// 每 10 秒把已完成的行切成列块放进发件箱 → 响应按需测试的阶段。会话断开时所有角色停止（凭据属于会话），按退避重连。
 /// 会话内的所有状态（套接字、发件箱、角色）随会话一起创建和释放。
 /// </summary>
@@ -28,13 +28,13 @@ public sealed class AgentConnection
     private readonly ConnectionEnv _env;
     private volatile ConnectionSession? _session;
 
-    public AgentConnection(BootstrapAgent endpoint, ConnectionEnv env)
+    public AgentConnection(KnownAgent endpoint, ConnectionEnv env)
     {
         Endpoint = endpoint;
         _env = env;
     }
 
-    public BootstrapAgent Endpoint { get; }
+    public KnownAgent Endpoint { get; }
 
     public bool IsConnected => _session is not null;
 
@@ -105,12 +105,11 @@ public sealed class AgentConnection
         Task pump = PumpAsync(rpc, outbox, cts.Token);
         try
         {
-            // 先同步时钟（块头里要带偏移），再取 Agent 列表；Agent 随后推送线路任务集
+            // 先同步时钟（块头里要带偏移）；Agent 随后推送线路任务集
             await SyncClockAsync(rpc, clock, rounds: 5, cts.Token);
             backoff.Reset();
             _session = session;
             _env.Log.Info("agent session up", ("agent", Endpoint.AgentId), ("offset_us", clock.OffsetUs));
-            await RefreshDirectoryAsync(rpc, cts.Token);
             Task maintenance = MaintainAsync(rpc, session, clock, cts.Token);
             Task finished = await Task.WhenAny(run, receive, pump, maintenance);
             await cts.CancelAsync();
@@ -163,23 +162,6 @@ public sealed class AgentConnection
         }
     }
 
-    /// <summary>本机的系统和架构：随列表同步一起告诉 Agent，只用于在面板上展示。</summary>
-    private static readonly PlatformInfo s_platform = PlatformDetector.Detect();
-
-    private async Task RefreshDirectoryAsync(RpcSession<ConnectionSession> rpc, CancellationToken ct)
-    {
-        Result<ProbeAgentsResult> list = await rpc.RequestAsync(
-            MonitorMethods.ProbeAgents, new ProbeAgentsParams { HaveVersion = _env.Directory.Version, Platform = s_platform }, MonitorJsonContext.Default.ProbeAgentsParams, MonitorJsonContext.Default.ProbeAgentsResult, ct);
-        if (list.TryGet(out ProbeAgentsResult? agents, out FleetError? error))
-        {
-            _env.Directory.Apply(agents);
-        }
-        else
-        {
-            _env.Log.Warn("could not fetch the agent list", ("agent", Endpoint.AgentId), ("err", error.Code));
-        }
-    }
-
     /// <summary>切块（每 10 秒）和时钟同步（每 30 秒）。</summary>
     private async Task MaintainAsync(RpcSession<ConnectionSession> rpc, ConnectionSession session, ClockEstimator clock, CancellationToken ct)
     {
@@ -232,14 +214,6 @@ public sealed class AgentConnection
                 MonitorMethods.TestAbort,
                 MonitorJsonContext.Default.TestAbortParams,
                 async (session, abort, _) => await session.AbortAsync(abort.TestId))
-            .OnNotify(
-                MonitorMethods.ProbeAgentsChanged,
-                MonitorJsonContext.Default.ProbeAgentsResult,
-                (session, list, _) =>
-                {
-                    session.Env.Directory.Apply(list);
-                    return ValueTask.CompletedTask;
-                })
             .OnNotify(
                 FleetMethods.OutboxAck,
                 FleetRpcContext.Default.OutboxAckParams,
diff --git a/backend/probe/src/Monitor.Probe/Link/AgentDirectory.cs b/backend/probe/src/Monitor.Probe/Link/AgentDirectory.cs
index ad06d12..4c74202 100644
--- a/backend/probe/src/Monitor.Probe/Link/AgentDirectory.cs
+++ b/backend/probe/src/Monitor.Probe/Link/AgentDirectory.cs
@@ -6,8 +6,7 @@ using Monitor.Protocol;
 namespace Monitor.Probe;
 
 /// <summary>
-/// Probe 要连接的 Agent 列表。Probe 不认识 Backend：列表先取自 <c>probe.json</c> 的 bootstrap（或上一次保存的 <c>agents.json</c>），
-/// 连上任意一个 Agent 之后，由它代为向 Backend 查询（<c>monitor.probe.agents</c>），之后的变化由 Agent 推送（<c>agents_changed</c>）。
+/// Probe 要连接的 Agent 列表：由面板作为期望状态（<c>probe_agents</c>）直接下发；面板连不上时用上一次保存的 <c>agents.json</c>。
 /// 列表变化时用 <see cref="ConfigStore"/> 写回 <c>agents.json</c>（这是配置，不是测量数据；只在变化时写，保护路由器的闪存）。
 /// </summary>
 public sealed class AgentDirectory
@@ -17,29 +16,25 @@ public sealed class AgentDirectory
     private readonly object _gate = new();
     private readonly ConfigStore _store;
     private readonly INodeLog _log;
-    private List<BootstrapAgent> _agents;
+    private List<KnownAgent> _agents = [];
     private long _version;
 
-    public AgentDirectory(ConfigStore store, string configDirectory, ProbeFile file, INodeLog log)
+    public AgentDirectory(ConfigStore store, string configDirectory, INodeLog log)
     {
         _store = store;
         _log = log;
-        _agents = [.. file.Bootstrap];
         string cache = Path.Combine(configDirectory, FileName);
         if (File.Exists(cache))
         {
             try
             {
                 AgentsCache saved = NodeConfig.Load(cache, ProbeConfigContext.Default.AgentsCache);
-                if (saved.Agents.Count > 0)
-                {
-                    _agents = saved.Agents;
-                    _version = saved.Version;
-                }
+                _agents = saved.Agents;
+                _version = saved.Version;
             }
             catch (Exception ex) when (ex is IOException or InvalidDataException or JsonException or InvalidOperationException)
             {
-                _log.Warn("agents.json is unreadable, using the bootstrap list", ("err", ex.Message));
+                _log.Warn("agents.json is unreadable, waiting for the panel", ("err", ex.Message));
             }
         }
     }
@@ -58,7 +53,7 @@ public sealed class AgentDirectory
         }
     }
 
-    public IReadOnlyList<BootstrapAgent> Agents
+    public IReadOnlyList<KnownAgent> Agents
     {
         get
         {
@@ -69,10 +64,10 @@ public sealed class AgentDirectory
         }
     }
 
-    /// <summary>应用 Agent 转来的列表。版本不比当前新的忽略（乱序到达的旧推送）。</summary>
-    public void Apply(ProbeAgentsResult result)
+    /// <summary>应用面板下发的列表。版本不比当前新的忽略（乱序到达的旧推送）。</summary>
+    public void Apply(ProbeAgentList result)
     {
-        var next = result.Agents.Select(a => new BootstrapAgent { AgentId = a.AgentId.Value, Host = a.Host, TcpPort = a.TcpPort, Spki = a.Spki }).ToList();
+        var next = result.Agents.Select(a => new KnownAgent { AgentId = a.AgentId.Value, Host = a.Host, TcpPort = a.TcpPort, Spki = a.Spki }).ToList();
         lock (_gate)
         {
             if (result.Version < _version || (result.Version == _version && Same(next, _agents)))
@@ -97,9 +92,9 @@ public sealed class AgentDirectory
         Changed?.Invoke();
     }
 
-    private static bool Same(List<BootstrapAgent> a, List<BootstrapAgent> b) =>
+    private static bool Same(List<KnownAgent> a, List<KnownAgent> b) =>
         a.Count == b.Count && a.Zip(b).All(p => Equal(p.First, p.Second));
 
-    public static bool Equal(BootstrapAgent a, BootstrapAgent b) =>
+    public static bool Equal(KnownAgent a, KnownAgent b) =>
         a.AgentId == b.AgentId && a.Host == b.Host && a.TcpPort == b.TcpPort && a.Spki == b.Spki;
 }
diff --git a/backend/probe/src/Monitor.Probe/ProbeApp.cs b/backend/probe/src/Monitor.Probe/ProbeApp.cs
index 24ece9a..11866ef 100644
--- a/backend/probe/src/Monitor.Probe/ProbeApp.cs
+++ b/backend/probe/src/Monitor.Probe/ProbeApp.cs
@@ -1,13 +1,17 @@
 using Fleet.Core;
 using Fleet.Hosting;
+using System.Text.Json;
 using Fleet.Identity;
+using Fleet.Link;
+using Fleet.Rpc;
 using Monitor.Measurement;
+using Monitor.Protocol;
 
 namespace Monitor.Probe;
 
 /// <summary>
-/// Probe 的组装点：Agent 列表 → 每个 Agent 一个连接（认证、重连、角色）。没有全局状态，测试可以在同一进程里启动多个。
-/// 列表变化时只调和连接：新增的建立，移除的断开，地址或证书指纹变化的重建，其余不受影响。
+/// Probe 的组装点：到面板的长连接（身份、Agent 列表、状态）+ 每个 Agent 一个测量连接（认证、重连、角色）。没有全局状态，测试可以在同一进程里启动多个。
+/// Agent 列表变化时只调和连接：新增的建立，移除的断开，地址或证书指纹变化的重建，其余不受影响。
 /// </summary>
 public sealed class ProbeApp : IDisposable
 {
@@ -17,16 +21,39 @@ public sealed class ProbeApp : IDisposable
     private readonly Dictionary<string, Running> _connections = [];
     private readonly SemaphoreSlim _changed = new(0);
     private readonly INodeLog _log;
+    private readonly FleetLink _link;
 
     public ProbeApp(ProbeFile file, string configDirectory, TimeProvider time, INodeLog log)
     {
         _log = log;
-        var directory = new AgentDirectory(new ConfigStore(configDirectory), configDirectory, file, log);
+        var directory = new AgentDirectory(new ConfigStore(configDirectory), configDirectory, log);
         NodeIdentity identity = NodeIdentity.FromPkcs8(Convert.FromBase64String(file.PrivateKey));
         _env = new ConnectionEnv(identity, file.ProbeId, file.Limits, directory, new MonoClock(time), time, log);
         directory.Changed += () => _changed.Release();
+
+        var options = new FleetLinkOptions
+        {
+            Server = new Uri(file.Server),
+            Identity = identity,
+            NodeId = new NodeId(file.ProbeId),
+            NodeVersion = Version,
+            Capabilities = [MonitorCapabilities.Base],
+            HelloMeta = () => JsonSerializer.SerializeToElement(new ProbeHelloMeta { Platform = PlatformDetector.Detect() }, MonitorJsonContext.Default.ProbeHelloMeta),
+        };
+        var list = new StateHandler<ProbeAgentList>(
+            ProbeAgentList.StateType,
+            MonitorJsonContext.Default.ProbeAgentList,
+            (version, doc, _) =>
+            {
+                directory.Apply(doc);
+                return ValueTask.FromResult(new StateSyncResult { AppliedVersion = version });
+            });
+        _link = new FleetLink(options, new RpcRouter<LinkContext>(), [list], new Outbox(1 << 20), time, log);
     }
 
+    /// <summary>到面板的连接（测试和状态查看用）。</summary>
+    public FleetLink Link => _link;
+
     public AgentDirectory Directory => _env.Directory;
 
     /// <summary>某个 Agent 的会话是否已经建立（测试和状态查看用）。</summary>
@@ -50,9 +77,10 @@ public sealed class ProbeApp : IDisposable
     {
         if (_env.Directory.Agents.Count == 0)
         {
-            _log.Warn("no agents known yet: probe.json has an empty bootstrap list");
+            _log.Info("no agents known yet, waiting for the panel to send the list");
         }
 
+        Task link = _link.RunAsync(ct);
         try
         {
             while (!ct.IsCancellationRequested)
@@ -68,6 +96,7 @@ public sealed class ProbeApp : IDisposable
         finally
         {
             await ReconcileAsync([], CancellationToken.None);
+            await Task.WhenAny(link, Task.Delay(TimeSpan.FromSeconds(5), CancellationToken.None));
         }
     }
 
@@ -77,7 +106,7 @@ public sealed class ProbeApp : IDisposable
         _changed.Dispose();
     }
 
-    private async Task ReconcileAsync(IReadOnlyList<BootstrapAgent> agents, CancellationToken ct)
+    private async Task ReconcileAsync(IReadOnlyList<KnownAgent> agents, CancellationToken ct)
     {
         var wanted = agents.ToDictionary(a => a.AgentId);
         var stopped = new List<Running>();
@@ -85,7 +114,7 @@ public sealed class ProbeApp : IDisposable
         {
             foreach ((string id, Running running) in _connections.ToList())
             {
-                if (!wanted.TryGetValue(id, out BootstrapAgent? endpoint) || !AgentDirectory.Equal(endpoint, running.Connection.Endpoint))
+                if (!wanted.TryGetValue(id, out KnownAgent? endpoint) || !AgentDirectory.Equal(endpoint, running.Connection.Endpoint))
                 {
                     stopped.Add(running);
                     _connections.Remove(id);
@@ -105,7 +134,7 @@ public sealed class ProbeApp : IDisposable
 
         lock (_connections)
         {
-            foreach ((string id, BootstrapAgent endpoint) in wanted)
+            foreach ((string id, KnownAgent endpoint) in wanted)
             {
                 if (!_connections.ContainsKey(id))
                 {
diff --git a/backend/probe/src/Monitor.Probe/ProbeConfig.cs b/backend/probe/src/Monitor.Probe/ProbeConfig.cs
index 9b72feb..bcaf11e 100644
--- a/backend/probe/src/Monitor.Probe/ProbeConfig.cs
+++ b/backend/probe/src/Monitor.Probe/ProbeConfig.cs
@@ -15,15 +15,15 @@ public sealed class ProbeFile
     [JsonPropertyName("private_key")]
     public string PrivateKey { get; set; } = "";
 
-    /// <summary>首次连接用的 Agent；连上之后以 <c>agents.json</c>（最新的列表）为准。</summary>
-    [JsonPropertyName("bootstrap")]
-    public List<BootstrapAgent> Bootstrap { get; set; } = [];
+    /// <summary>面板的地址（http 或 https）。Probe 直接连它：身份、Agent 列表、更新都从这里来。</summary>
+    [JsonPropertyName("server")]
+    public string Server { get; set; } = "";
 
     [JsonPropertyName("limits")]
     public ProbeLimits Limits { get; set; } = new();
 }
 
-public sealed class BootstrapAgent
+public sealed class KnownAgent
 {
     [JsonPropertyName("agent_id")]
     public string AgentId { get; set; } = "";
@@ -54,12 +54,12 @@ public sealed class ProbeLimits
 [JsonSerializable(typeof(AgentsCache))]
 public sealed partial class ProbeConfigContext : JsonSerializerContext;
 
-/// <summary><c>agents.json</c>：最近一次从 Agent 同步到的列表（配置，不是测量数据）。</summary>
+/// <summary><c>agents.json</c>：最近一次从面板同步到的 Agent 列表（配置，不是测量数据）；面板连不上时 Probe 靠它继续测量。</summary>
 public sealed class AgentsCache
 {
     [JsonPropertyName("version")]
     public long Version { get; set; }
 
     [JsonPropertyName("agents")]
-    public List<BootstrapAgent> Agents { get; set; } = [];
+    public List<KnownAgent> Agents { get; set; } = [];
 }
diff --git a/backend/probe/src/Monitor.Probe/Program.cs b/backend/probe/src/Monitor.Probe/Program.cs
index 4892703..2a025ac 100644
--- a/backend/probe/src/Monitor.Probe/Program.cs
+++ b/backend/probe/src/Monitor.Probe/Program.cs
@@ -24,9 +24,9 @@ ProbeFile file;
 try
 {
     file = NodeConfig.Load(configPath, ProbeConfigContext.Default.ProbeFile);
-    if (file.ProbeId.Length == 0 || file.PrivateKey.Length == 0)
+    if (file.ProbeId.Length == 0 || file.PrivateKey.Length == 0 || !Uri.TryCreate(file.Server, UriKind.Absolute, out _))
     {
-        throw new InvalidOperationException("probe.json needs probe_id and private_key (download it from the panel: POST /api/admin/probe/identity)");
+        throw new InvalidOperationException("probe.json needs probe_id, private_key and server (download it from the panel: Probes → Create)");
     }
 }
 catch (Exception ex) when (ex is IOException or InvalidDataException or InvalidOperationException or System.Text.Json.JsonException)
diff --git a/backend/probe/tests/Monitor.Probe.Tests/ProbeTests.cs b/backend/probe/tests/Monitor.Probe.Tests/ProbeTests.cs
index 60412c3..89d3f20 100644
--- a/backend/probe/tests/Monitor.Probe.Tests/ProbeTests.cs
+++ b/backend/probe/tests/Monitor.Probe.Tests/ProbeTests.cs
@@ -30,23 +30,22 @@ public sealed class ProbeTests
         return path;
     }
 
-    private static ProbeAgentsResult List(long version, params string[] ids) => new()
+    private static ProbeAgentList List(long version, params string[] ids) => new()
     {
         Version = version,
         Agents = [.. ids.Select(id => new AgentEndpoint { AgentId = new NodeId(id), Host = id + ".example", TcpPort = 7443, Spki = "c3BraQ==" })],
     };
 
     [Fact]
-    public void AgentDirectory_StartsFromBootstrap_IgnoresStaleLists_PersistsChanges_AndReloadsThem()
+    public void AgentDirectory_StartsEmpty_IgnoresStaleLists_PersistsChanges_AndReloadsThem()
     {
         string directory = NewDirectory();
         try
         {
-            var file = new ProbeFile { ProbeId = "prb_x", Bootstrap = [new BootstrapAgent { AgentId = "agt_boot", Host = "boot.example", TcpPort = 7443, Spki = "c3BraQ==" }] };
-            var directoryA = new AgentDirectory(new ConfigStore(directory), directory, file, NullNodeLog.Instance);
+            var directoryA = new AgentDirectory(new ConfigStore(directory), directory, NullNodeLog.Instance);
             int changes = 0;
             directoryA.Changed += () => changes++;
-            Assert.Equal(["agt_boot"], directoryA.Agents.Select(a => a.AgentId));
+            Assert.Empty(directoryA.Agents);
 
             directoryA.Apply(List(5, "agt_1", "agt_2"));
             Assert.Equal(1, changes);
@@ -57,8 +56,8 @@ public sealed class ProbeTests
             Assert.Equal(1, changes);
             Assert.Equal(5, directoryA.Version);
 
-            // The next start uses the saved list, not the bootstrap one
-            var directoryB = new AgentDirectory(new ConfigStore(directory), directory, file, NullNodeLog.Instance);
+            // The next start uses the saved list while the panel is not reachable yet
+            var directoryB = new AgentDirectory(new ConfigStore(directory), directory, NullNodeLog.Instance);
             Assert.Equal(["agt_1", "agt_2"], directoryB.Agents.Select(a => a.AgentId));
             Assert.Equal(5, directoryB.Version);
         }
@@ -69,15 +68,14 @@ public sealed class ProbeTests
     }
 
     [Fact]
-    public void AgentDirectory_FallsBackToBootstrap_WhenTheSavedFileIsCorrupt()
+    public void AgentDirectory_StartsEmpty_WhenTheSavedFileIsCorrupt()
     {
         string directory = NewDirectory();
         try
         {
             new ConfigStore(directory).Write(AgentDirectory.FileName, "{ not json"u8.ToArray());
-            var file = new ProbeFile { Bootstrap = [new BootstrapAgent { AgentId = "agt_boot", Host = "h", TcpPort = 1, Spki = "AA==" }] };
-            var loaded = new AgentDirectory(new ConfigStore(directory), directory, file, NullNodeLog.Instance);
-            Assert.Equal(["agt_boot"], loaded.Agents.Select(a => a.AgentId));
+            var loaded = new AgentDirectory(new ConfigStore(directory), directory, NullNodeLog.Instance);
+            Assert.Empty(loaded.Agents);
         }
         finally
         {
diff --git a/backend/shared/Monitor.Protocol/Rpc/MonitorRpc.cs b/backend/shared/Monitor.Protocol/Rpc/MonitorRpc.cs
index 356b373..6d5db07 100644
--- a/backend/shared/Monitor.Protocol/Rpc/MonitorRpc.cs
+++ b/backend/shared/Monitor.Protocol/Rpc/MonitorRpc.cs
@@ -13,8 +13,6 @@ public static class MonitorMethods
     public const string TestStatus = "monitor.test.status";
     public const string Event = "monitor.event";
     public const string Host = "monitor.host";
-    public const string ProbeAgents = "monitor.probe.agents";
-    public const string ProbeAgentsChanged = "monitor.probe.agents_changed";
 
     // Probe ↔ Agent（点对点会话）
     public const string Clock = "monitor.clock";
@@ -147,19 +145,11 @@ public sealed class AgentEndpoint
     public string Spki { get; set; } = "";
 }
 
-public sealed class ProbeAgentsParams
+/// <summary>期望状态文档（Fleet state type = <c>probe_agents</c>）：Backend 直接下发给每个 Probe 的 Agent 列表。</summary>
+public sealed class ProbeAgentList
 {
-    /// <summary>Probe 目前持有的列表版本（用于调试；服务端总是返回当前列表）。</summary>
-    [JsonPropertyName("have_version")]
-    public long HaveVersion { get; set; }
+    public const string StateType = "probe_agents";
 
-    /// <summary>Probe 的系统和架构（只用于展示；Agent 记在会话上，随连接状态报给 Backend）。</summary>
-    [JsonPropertyName("platform")]
-    public PlatformInfo? Platform { get; set; }
-}
-
-public sealed class ProbeAgentsResult
-{
     [JsonPropertyName("version")]
     public long Version { get; set; }
 
@@ -227,6 +217,13 @@ public sealed class PlatformInfo
     public string? BuiltAt { get; set; }
 }
 
+/// <summary>Probe 的 <c>fleet.hello</c> 附加字段：系统、架构和构建信息（只用于展示和更新）。</summary>
+public sealed class ProbeHelloMeta
+{
+    [JsonPropertyName("platform")]
+    public PlatformInfo? Platform { get; set; }
+}
+
 /// <summary><c>fleet.hello</c> 的附加字段。</summary>
 public sealed class AgentHelloMeta
 {
@@ -302,9 +299,6 @@ public sealed class ConnectedProbe
 
     [JsonPropertyName("since_utc_ms")]
     public long SinceUtcMs { get; set; }
-
-    [JsonPropertyName("platform")]
-    public PlatformInfo? Platform { get; set; }
 }
 
 /// <summary><c>fleet.heartbeat</c> 的附加字段：只有进程内的计数，没有主机信息。</summary>
@@ -470,8 +464,8 @@ public static class FragmentKeys
 [JsonSerializable(typeof(HostSnapshot))]
 [JsonSerializable(typeof(TestStatusParams))]
 [JsonSerializable(typeof(AgentEventParams))]
-[JsonSerializable(typeof(ProbeAgentsParams))]
-[JsonSerializable(typeof(ProbeAgentsResult))]
+[JsonSerializable(typeof(ProbeAgentList))]
+[JsonSerializable(typeof(ProbeHelloMeta))]
 [JsonSerializable(typeof(AgentEnrollMeta))]
 [JsonSerializable(typeof(PlatformInfo))]
 [JsonSerializable(typeof(AgentHelloMeta))]
diff --git a/backend/shared/Monitor.Protocol/Tasks/TaskSet.cs b/backend/shared/Monitor.Protocol/Tasks/TaskSet.cs
index 89476d0..2c320a5 100644
--- a/backend/shared/Monitor.Protocol/Tasks/TaskSet.cs
+++ b/backend/shared/Monitor.Protocol/Tasks/TaskSet.cs
@@ -56,9 +56,6 @@ public sealed class TaskSet
     /// <summary>允许连接到这个 Agent 的 Probe 公钥。</summary>
     [JsonPropertyName("peers")]
     public List<PeerSpec> Peers { get; set; } = [];
-
-    [JsonPropertyName("probe_agents_version")]
-    public long ProbeAgentsVersion { get; set; }
 }
 
 public static class TaskSchedule
diff --git a/backend/src/Monitor.Backend.Api/Admin/AgentEndpoints.cs b/backend/src/Monitor.Backend.Api/Admin/AgentEndpoints.cs
index a4f0d18..a9ff75d 100644
--- a/backend/src/Monitor.Backend.Api/Admin/AgentEndpoints.cs
+++ b/backend/src/Monitor.Backend.Api/Admin/AgentEndpoints.cs
@@ -150,9 +150,9 @@ public static class AgentEndpoints
     private static async Task<IResult> ListProbesAsync(ProbeService probes, CancellationToken ct) =>
         TypedResults.Json(new PageDto<ProbeDto>([.. (await probes.ListAsync(ct)).Select(Mappers.ToDto)], null), ApiJsonContext.Default.PageDtoProbeDto);
 
-    private static async Task<IResult> CreateProbeAsync(HttpContext http, ProbeService probes, CreateProbeRequest? request, CancellationToken ct)
+    private static async Task<IResult> CreateProbeAsync(HttpContext http, ProbeService probes, BackendOptions options, CreateProbeRequest? request, CancellationToken ct)
     {
-        Result<ProbeIdentityFile> result = await probes.CreateAsync(request?.Name, ct);
+        Result<ProbeIdentityFile> result = await probes.CreateAsync(request?.Name, PanelUrl(http, options), ct);
         if (!result.TryGet(out ProbeIdentityFile? file, out FleetError? error))
         {
             return Problems.From(http, error);
@@ -179,9 +179,9 @@ public static class AgentEndpoints
         return result.TryGet(out ProbeView? view, out FleetError? error) ? TypedResults.Json(Mappers.ToDto(view), ApiJsonContext.Default.ProbeDto) : Problems.From(http, error);
     }
 
-    private static async Task<IResult> RotateProbeAsync(HttpContext http, ProbeService probes, string id, CancellationToken ct)
+    private static async Task<IResult> RotateProbeAsync(HttpContext http, ProbeService probes, BackendOptions options, string id, CancellationToken ct)
     {
-        Result<ProbeIdentityFile> result = await probes.RotateAsync(id, ct);
+        Result<ProbeIdentityFile> result = await probes.RotateAsync(id, PanelUrl(http, options), ct);
         if (!result.TryGet(out ProbeIdentityFile? file, out FleetError? error))
         {
             return Problems.From(http, error);
@@ -214,8 +214,9 @@ public static class AgentEndpoints
         return dropped ? TypedResults.NoContent() : Problems.Create(http, MonitorErrors.ProbeOffline, "this probe has no session with this agent");
     }
 
+    /// <summary>Probe 要连的面板地址：配置的公开地址，没有就用这次请求的地址。</summary>
+    private static string PanelUrl(HttpContext http, BackendOptions options) => (options.PublicUrl ?? $"{http.Request.Scheme}://{http.Request.Host}").TrimEnd('/');
+
     private static ProbeIdentityDto ToIdentityDto(ProbeIdentityFile file) =>
-        new(
-            file.ProbeId.Value, file.PrivateKey, [.. file.Bootstrap.Select(b => new BootstrapAgentDto(b.AgentId.Value, b.Host, b.TcpPort, b.Spki))],
-            new ProbeLimitsDto(file.Limits.MaxTestMbps, file.Limits.MaxTotalPps));
+        new(file.ProbeId.Value, file.PrivateKey, file.Server, new ProbeLimitsDto(file.Limits.MaxTestMbps, file.Limits.MaxTotalPps));
 }
diff --git a/backend/src/Monitor.Backend.Api/Common/Mappers.cs b/backend/src/Monitor.Backend.Api/Common/Mappers.cs
index 79e3d7a..198d99a 100644
--- a/backend/src/Monitor.Backend.Api/Common/Mappers.cs
+++ b/backend/src/Monitor.Backend.Api/Common/Mappers.cs
@@ -40,7 +40,7 @@ public static class Mappers
 
     public static ProbeDto ToDto(ProbeView v) =>
         new(
-            v.Probe.Id, v.Probe.Name, Time(v.Probe.CreatedAtMs), Time(v.Probe.RevokedAtMs), v.Revoked,
+            v.Probe.Id, v.Probe.Name, Time(v.Probe.CreatedAtMs), Time(v.Probe.RevokedAtMs), v.Revoked, v.Online,
             [.. v.Connections.Select(c => new ProbeConnectionDto(c.AgentId.Value, c.AgentName, c.AgentOnline, c.Version, c.Remote, Time(c.SinceMs)))]);
 
     public static SeriesDto ToDto(SeriesResult r, bool live) =>
diff --git a/backend/src/Monitor.Backend.Api/Contracts/AdminDtos.cs b/backend/src/Monitor.Backend.Api/Contracts/AdminDtos.cs
index 83ce68b..129b260 100644
--- a/backend/src/Monitor.Backend.Api/Contracts/AdminDtos.cs
+++ b/backend/src/Monitor.Backend.Api/Contracts/AdminDtos.cs
@@ -57,14 +57,12 @@ public sealed record ConnectedProbeDto(string ProbeId, string? Version, string?
 /// <summary>某个 Probe 现在连着的一个 Agent。</summary>
 public sealed record ProbeConnectionDto(string AgentId, string AgentName, bool AgentOnline, string? Version, string? Remote, DateTimeOffset ConnectedSince);
 
-public sealed record ProbeDto(string Id, string Name, DateTimeOffset CreatedAt, DateTimeOffset? RevokedAt, bool Revoked, IReadOnlyList<ProbeConnectionDto> Connections);
-
-public sealed record BootstrapAgentDto(string AgentId, string Host, int TcpPort, string Spki);
+public sealed record ProbeDto(string Id, string Name, DateTimeOffset CreatedAt, DateTimeOffset? RevokedAt, bool Revoked, bool Online, IReadOnlyList<ProbeConnectionDto> Connections);
 
 public sealed record ProbeLimitsDto(double MaxTestMbps, long MaxTotalPps);
 
 /// <summary><c>probe.json</c>：含私钥，只在生成时返回一次。</summary>
-public sealed record ProbeIdentityDto(string ProbeId, string PrivateKey, IReadOnlyList<BootstrapAgentDto> Bootstrap, ProbeLimitsDto Limits);
+public sealed record ProbeIdentityDto(string ProbeId, string PrivateKey, string Server, ProbeLimitsDto Limits);
 
 public sealed record CreateProbeRequest(string? Name);
 
diff --git a/backend/src/Monitor.Backend.Application/Agents/AgentEventService.cs b/backend/src/Monitor.Backend.Application/Agents/AgentEventService.cs
index 1afbb61..957624c 100644
--- a/backend/src/Monitor.Backend.Application/Agents/AgentEventService.cs
+++ b/backend/src/Monitor.Backend.Application/Agents/AgentEventService.cs
@@ -34,8 +34,8 @@ public sealed class AgentEventService
         switch (e.Kind)
         {
             case AgentEventKinds.ProbeConnected when !string.IsNullOrEmpty(e.Detail):
-                state.AddProbe(e.Probe is { } p ? new ConnectedProbeInfo(e.Detail, p.Version, p.Remote, p.SinceUtcMs > 0 ? p.SinceUtcMs : at, p.Platform) : new ConnectedProbeInfo(e.Detail, null, null, at));
-                _nodes.ObserveProbeInBackground(e.Detail, e.Probe?.Remote, e.Probe?.Platform);
+                state.AddProbe(e.Probe is { } p ? new ConnectedProbeInfo(e.Detail, p.Version, p.Remote, p.SinceUtcMs > 0 ? p.SinceUtcMs : at) : new ConnectedProbeInfo(e.Detail, null, null, at));
+                _nodes.ObserveProbeInBackground(e.Detail, e.Probe?.Remote);
                 break;
             case AgentEventKinds.ProbeDisconnected when !string.IsNullOrEmpty(e.Detail):
                 state.RemoveProbe(e.Detail);
diff --git a/backend/src/Monitor.Backend.Application/Agents/AgentRuntime.cs b/backend/src/Monitor.Backend.Application/Agents/AgentRuntime.cs
index fd1d2ba..98e7738 100644
--- a/backend/src/Monitor.Backend.Application/Agents/AgentRuntime.cs
+++ b/backend/src/Monitor.Backend.Application/Agents/AgentRuntime.cs
@@ -5,7 +5,7 @@ using Monitor.Protocol;
 namespace Monitor.Backend.Application;
 
 /// <summary>Agent 眼中的一个已连接 Probe（Agent 在事件和心跳里上报）。</summary>
-public sealed record ConnectedProbeInfo(string Id, string? Version, string? Remote, long SinceMs, PlatformInfo? Platform = null);
+public sealed record ConnectedProbeInfo(string Id, string? Version, string? Remote, long SinceMs);
 
 /// <summary>Agent 的运行时状态（只在内存中）：连着哪些 Probe、最近的进程内计数、端点变化次数。</summary>
 public sealed class AgentRuntimeState
diff --git a/backend/src/Monitor.Backend.Application/Agents/AgentService.cs b/backend/src/Monitor.Backend.Application/Agents/AgentService.cs
index c3418b7..61550f5 100644
--- a/backend/src/Monitor.Backend.Application/Agents/AgentService.cs
+++ b/backend/src/Monitor.Backend.Application/Agents/AgentService.cs
@@ -123,11 +123,11 @@ public sealed partial class AgentService
     }
 
     /// <summary>Probe 需要连接的 Agent 列表（所有已激活的 Agent）。版本号在列表变化时递增。</summary>
-    public async ValueTask<ProbeAgentsResult> ProbeAgentsAsync(CancellationToken ct)
+    public async ValueTask<ProbeAgentList> ProbeAgentsAsync(CancellationToken ct)
     {
         IReadOnlyList<AgentRecord> agents = await _agents.ListAsync(ct);
         long version = long.TryParse(await _settings.GetAsync(TaskPlanner.ProbeAgentsVersionKey, ct), out long v) ? v : 0;
-        var result = new ProbeAgentsResult { Version = version };
+        var result = new ProbeAgentList { Version = version };
         foreach (AgentRecord agent in agents.Where(a => a.Status == NodeStatus.Active && a.PublicHost.Length > 0))
         {
             result.Agents.Add(new AgentEndpoint
@@ -144,12 +144,11 @@ public sealed partial class AgentService
         return result;
     }
 
-    /// <summary>Agent 集合变了：递增列表版本、重算各 Agent 的期望状态、通知 Probe。</summary>
+    /// <summary>Agent 集合变了：递增列表版本，重算各 Agent 的期望状态，并把新的 Agent 列表推给 Probe（都是期望状态，一起通知）。</summary>
     public async ValueTask AfterAgentSetChangedAsync(CancellationToken ct)
     {
         await _planner.BumpProbeAgentsVersionAsync(ct);
         _gateway.NotifyAllTaskSetsChanged();
-        await _gateway.NotifyProbeAgentsChangedAsync(await ProbeAgentsAsync(ct), ct);
     }
 
     private async ValueTask<Result<AgentView>> ChangeStatusAsync(NodeId id, NodeStatus status, CancellationToken ct)
diff --git a/backend/src/Monitor.Backend.Application/Agents/MonitorFleetHooks.cs b/backend/src/Monitor.Backend.Application/Agents/MonitorFleetHooks.cs
index d8f6b27..d032553 100644
--- a/backend/src/Monitor.Backend.Application/Agents/MonitorFleetHooks.cs
+++ b/backend/src/Monitor.Backend.Application/Agents/MonitorFleetHooks.cs
@@ -66,6 +66,12 @@ public sealed class MonitorNodeEventSink : INodeEventSink
     public async ValueTask OnEventAsync(NodeEvent nodeEvent, CancellationToken ct)
     {
         NodeId id = nodeEvent.Node.Id;
+        if (id.Value.StartsWith(ProbeId.Prefix, StringComparison.Ordinal))
+        {
+            await OnProbeEventAsync(id, nodeEvent, ct);
+            return;
+        }
+
         switch (nodeEvent.Kind)
         {
             case NodeEventKind.Online:
@@ -89,10 +95,10 @@ public sealed class MonitorNodeEventSink : INodeEventSink
                     state.LastHeartbeatAtMs = nodeEvent.AtMs;
                     if (beat is not null)
                     {
-                        state.ReplaceProbes(beat.Probes.Select(p => new ConnectedProbeInfo(p.Id.Value, p.Version, p.Remote, p.SinceUtcMs, p.Platform)));
+                        state.ReplaceProbes(beat.Probes.Select(p => new ConnectedProbeInfo(p.Id.Value, p.Version, p.Remote, p.SinceUtcMs)));
                         foreach (ConnectedProbe p in beat.Probes)
                         {
-                            _nodes.ObserveProbeInBackground(p.Id.Value, p.Remote, p.Platform);
+                            _nodes.ObserveProbeInBackground(p.Id.Value, p.Remote);
                         }
                     }
                 }
@@ -105,6 +111,29 @@ public sealed class MonitorNodeEventSink : INodeEventSink
         }
     }
 
+    /// <summary>Probe 自己连上来了：hello 里带着它的系统、架构和构建信息；上线下线只推给 SSE，不记事件。</summary>
+    private async ValueTask OnProbeEventAsync(NodeId id, NodeEvent nodeEvent, CancellationToken ct)
+    {
+        switch (nodeEvent.Kind)
+        {
+            case NodeEventKind.Online or NodeEventKind.Offline:
+                _live.Publish(new NodeSignal("probe", id.Value, nodeEvent.Kind == NodeEventKind.Online, nodeEvent.AtMs));
+                break;
+            case NodeEventKind.Hello when nodeEvent.Hello?.Meta is { } raw:
+                try
+                {
+                    ProbeHelloMeta? meta = raw.Deserialize(MonitorJsonContext.Default.ProbeHelloMeta);
+                    await _nodes.SetPlatformAsync(id.Value, NodeKinds.Probe, meta?.Platform, ct);
+                }
+                catch (JsonException)
+                {
+                    // 格式不对就忽略
+                }
+
+                break;
+        }
+    }
+
     private async ValueTask ApplyHelloAsync(NodeId id, HelloParams hello, CancellationToken ct)
     {
         var kinds = new List<string>();
diff --git a/backend/src/Monitor.Backend.Application/Agents/ProbeService.cs b/backend/src/Monitor.Backend.Application/Agents/ProbeService.cs
index 263db9f..c5db8cf 100644
--- a/backend/src/Monitor.Backend.Application/Agents/ProbeService.cs
+++ b/backend/src/Monitor.Backend.Application/Agents/ProbeService.cs
@@ -6,49 +6,45 @@ using Monitor.Protocol;
 
 namespace Monitor.Backend.Application;
 
-public sealed record BootstrapAgent(NodeId AgentId, string Host, int TcpPort, string Spki);
-
 /// <summary>本地硬上限：写在 Probe 本机的配置里，面板无法修改（在路由器上建议调低）。</summary>
 public sealed record ProbeLimits(double MaxTestMbps, long MaxTotalPps);
 
-/// <summary><c>probe.json</c>：只在生成（或轮换密钥）时返回一次，含私钥。</summary>
-public sealed record ProbeIdentityFile(ProbeId ProbeId, string PrivateKey, IReadOnlyList<BootstrapAgent> Bootstrap, ProbeLimits Limits);
+/// <summary><c>probe.json</c>：只在生成（或轮换密钥）时返回一次，含私钥；<c>Server</c> 是 Probe 要连的面板地址。</summary>
+public sealed record ProbeIdentityFile(ProbeId ProbeId, string PrivateKey, string Server, ProbeLimits Limits);
 
 /// <summary>某个 Probe 现在连着的一个 Agent（Agent 上报）。</summary>
 public sealed record ProbeConnection(NodeId AgentId, string AgentName, bool AgentOnline, string? Version, string? Remote, long SinceMs);
 
-public sealed record ProbeView(ProbeRecord Probe, IReadOnlyList<ProbeConnection> Connections)
+public sealed record ProbeView(ProbeRecord Probe, bool Online, IReadOnlyList<ProbeConnection> Connections)
 {
     public bool Revoked => Probe.RevokedAtMs is not null;
 }
 
 /// <summary>
 /// Probe 身份（Backend 生成，私钥只返回一次）：可以有多个，每个都能改名、轮换密钥、吊销、删除。
-/// 所有未吊销的 Probe 的公钥都会写进每个 Agent 的期望状态（<c>peers</c>）；吊销、删除、轮换密钥之后，Agent 立刻断开对应会话。
+/// 所有未吊销的 Probe 的公钥都会写进每个 Agent 的期望状态（<c>peers</c>）；吊销、删除、轮换密钥之后，Agent 立刻断开对应会话，Probe 到面板的连接也会被拒绝。
 /// 一条线路是一对（Probe，Agent）。
 /// </summary>
 public sealed partial class ProbeService
 {
     private readonly IProbeStore _probes;
     private readonly IAgentStore _agents;
-    private readonly AgentService _agentService;
     private readonly AgentRuntime _runtime;
     private readonly IAgentGateway _gateway;
     private readonly TimeProvider _time;
     private readonly NodeInfoService _nodes;
 
-    public ProbeService(IProbeStore probes, IAgentStore agents, AgentService agentService, AgentRuntime runtime, IAgentGateway gateway, TimeProvider time, NodeInfoService nodes)
+    public ProbeService(IProbeStore probes, IAgentStore agents, AgentRuntime runtime, IAgentGateway gateway, TimeProvider time, NodeInfoService nodes)
     {
         _nodes = nodes;
         _probes = probes;
         _agents = agents;
-        _agentService = agentService;
         _runtime = runtime;
         _gateway = gateway;
         _time = time;
     }
 
-    public async ValueTask<Result<ProbeIdentityFile>> CreateAsync(string? name, CancellationToken ct)
+    public async ValueTask<Result<ProbeIdentityFile>> CreateAsync(string? name, string server, CancellationToken ct)
     {
         string finalName = string.IsNullOrWhiteSpace(name) ? "probe" : name.Trim();
         if (!NamePattern().IsMatch(finalName))
@@ -65,7 +61,7 @@ public sealed partial class ProbeService
         var probe = new ProbeRecord(Ulid.NewPrefixed(ProbeId.Prefix, _time), finalName, identity.PublicKeySpki, _time.GetUtcNow().ToUnixTimeMilliseconds(), null);
         await _probes.SaveAsync(probe, ct);
         _gateway.NotifyAllTaskSetsChanged();
-        return Result<ProbeIdentityFile>.Ok(await BuildFileAsync(probe, identity, ct));
+        return Result<ProbeIdentityFile>.Ok(BuildFile(probe, identity, server));
     }
 
     public async ValueTask<IReadOnlyList<ProbeView>> ListAsync(CancellationToken ct)
@@ -101,7 +97,7 @@ public sealed partial class ProbeService
     }
 
     /// <summary>换一把新密钥（id 不变）：旧私钥立即失效，所有 Agent 上这个 Probe 的会话被断开。返回新的 probe.json（只此一次）。</summary>
-    public async ValueTask<Result<ProbeIdentityFile>> RotateAsync(string id, CancellationToken ct)
+    public async ValueTask<Result<ProbeIdentityFile>> RotateAsync(string id, string server, CancellationToken ct)
     {
         if (await _probes.GetAsync(id, ct) is not { } probe)
         {
@@ -118,7 +114,7 @@ public sealed partial class ProbeService
         await _probes.SaveAsync(updated, ct);
         _gateway.NotifyAllTaskSetsChanged();
         await DisconnectEverywhereAsync(id, ct);
-        return Result<ProbeIdentityFile>.Ok(await BuildFileAsync(updated, identity, ct));
+        return Result<ProbeIdentityFile>.Ok(BuildFile(updated, identity, server));
     }
 
     /// <summary>吊销：保留记录和历史数据，公钥从所有 Agent 的名单里移除，Agent 立即断开它的会话。</summary>
@@ -183,18 +179,11 @@ public sealed partial class ProbeService
             }
         }
 
-        return new ProbeView(probe, [.. connections.OrderBy(c => c.AgentName, StringComparer.Ordinal)]);
+        return new ProbeView(probe, _gateway.IsOnline(new NodeId(probe.Id)), [.. connections.OrderBy(c => c.AgentName, StringComparer.Ordinal)]);
     }
 
-    private async ValueTask<ProbeIdentityFile> BuildFileAsync(ProbeRecord probe, NodeIdentity identity, CancellationToken ct)
-    {
-        ProbeAgentsResult agents = await _agentService.ProbeAgentsAsync(ct);
-        return new ProbeIdentityFile(
-            new ProbeId(probe.Id),
-            Convert.ToBase64String(identity.ExportPkcs8()),
-            [.. agents.Agents.Select(a => new BootstrapAgent(a.AgentId, a.Host, a.TcpPort, a.Spki))],
-            new ProbeLimits(MaxTestMbps: 100, MaxTotalPps: 20_000));
-    }
+    private static ProbeIdentityFile BuildFile(ProbeRecord probe, NodeIdentity identity, string server) =>
+        new(new ProbeId(probe.Id), Convert.ToBase64String(identity.ExportPkcs8()), server, new ProbeLimits(MaxTestMbps: 100, MaxTotalPps: 20_000));
 
     [GeneratedRegex(@"^[\p{L}\p{M}\p{N}._-]{1,64}$")]
     private static partial Regex NamePattern();
diff --git a/backend/src/Monitor.Backend.Application/Nodes/NodeInfoService.cs b/backend/src/Monitor.Backend.Application/Nodes/NodeInfoService.cs
index f3c3e23..9a9d3ea 100644
--- a/backend/src/Monitor.Backend.Application/Nodes/NodeInfoService.cs
+++ b/backend/src/Monitor.Backend.Application/Nodes/NodeInfoService.cs
@@ -111,14 +111,13 @@ public sealed class NodeInfoService
         }
     }
 
-    /// <summary>Probe 连上来或心跳报告它还连着：记下它的系统信息，并在后台查它的国家和运营商。出错只吞掉，不影响调用方。</summary>
-    public void ObserveProbeInBackground(string probeId, string? remote, PlatformInfo? platform) =>
+    /// <summary>Agent 报告某个 Probe 连着它：在后台用 Probe 的来源地址查国家和运营商（系统信息是 Probe 自己连上面板时报的）。出错只吞掉。</summary>
+    public void ObserveProbeInBackground(string probeId, string? remote) =>
         _ = Task.Run(async () =>
         {
             try
             {
                 using var cts = new CancellationTokenSource(TimeSpan.FromSeconds(15));
-                await SetPlatformAsync(probeId, NodeKinds.Probe, platform, cts.Token);
                 await ObserveAddressAsync(probeId, NodeKinds.Probe, remote, cts.Token);
             }
             catch (Exception ex) when (ex is OperationCanceledException or InvalidOperationException or IOException)
diff --git a/backend/src/Monitor.Backend.Application/Ports/IAgentGateway.cs b/backend/src/Monitor.Backend.Application/Ports/IAgentGateway.cs
index 443a795..ee8627a 100644
--- a/backend/src/Monitor.Backend.Application/Ports/IAgentGateway.cs
+++ b/backend/src/Monitor.Backend.Application/Ports/IAgentGateway.cs
@@ -4,7 +4,7 @@ using Monitor.Protocol;
 namespace Monitor.Backend.Application;
 
 /// <summary>
-/// Application 通往 Agent 连接的端口（由 Gateway 实现）：下发状态变化、发起按需测试、通知 Probe 列表变化。
+/// Application 通往 Agent 连接的端口（由 Gateway 实现）：下发状态变化、发起按需测试。
 /// </summary>
 public interface IAgentGateway
 {
@@ -17,9 +17,6 @@ public interface IAgentGateway
 
     void NotifyAllTaskSetsChanged();
 
-    /// <summary>Agent 列表变了：通知所有在线 Agent 转发给 Probe。</summary>
-    ValueTask NotifyProbeAgentsChangedAsync(ProbeAgentsResult agents, CancellationToken ct);
-
     /// <summary>失败时错误码为 <c>probe_offline</c>、<c>test_busy</c>、<c>agent_offline</c> 等。</summary>
     ValueTask<Result<bool>> RunTestAsync(NodeId agent, TestRunParams run, CancellationToken ct);
 
diff --git a/backend/src/Monitor.Backend.Application/Tasks/TaskPlanner.cs b/backend/src/Monitor.Backend.Application/Tasks/TaskPlanner.cs
index c3021fb..11ee07d 100644
--- a/backend/src/Monitor.Backend.Application/Tasks/TaskPlanner.cs
+++ b/backend/src/Monitor.Backend.Application/Tasks/TaskPlanner.cs
@@ -41,9 +41,8 @@ public sealed class TaskPlanner : IDisposable
 
         IReadOnlyList<TaskRecord> all = await _tasks.ListAsync(ct);
         IReadOnlyList<ProbeRecord> probes = await _probes.ListAsync(ct);
-        long listVersion = long.TryParse(await _settings.GetAsync(ProbeAgentsVersionKey, ct), out long v) ? v : 0;
 
-        var document = new TaskSet { ProbeAgentsVersion = listVersion };
+        var document = new TaskSet();
         foreach (EffectiveTask task in EffectiveTasks.Compute(all, agent, filterByAgentKinds: true))
         {
             document.Tasks.Add(new TaskSpec
diff --git a/backend/src/Monitor.Backend.Gateway/FleetGateway.cs b/backend/src/Monitor.Backend.Gateway/FleetGateway.cs
index 84847fd..4ba5927 100644
--- a/backend/src/Monitor.Backend.Gateway/FleetGateway.cs
+++ b/backend/src/Monitor.Backend.Gateway/FleetGateway.cs
@@ -24,7 +24,7 @@ public sealed class FleetGateway : IAgentGateway
 
     private IStateNotifier Notifier => _services.GetRequiredService<IStateNotifier>();
 
-    public IReadOnlyCollection<NodeId> OnlineAgents => Connections.OnlineNodes;
+    public IReadOnlyCollection<NodeId> OnlineAgents => [.. Connections.OnlineNodes.Where(n => n.Value.StartsWith(AgentIds.Prefix, StringComparison.Ordinal))];
 
     public bool IsOnline(NodeId agent) => Connections.IsOnline(agent);
 
@@ -32,15 +32,6 @@ public sealed class FleetGateway : IAgentGateway
 
     public void NotifyAllTaskSetsChanged() => Notifier.NotifyAllChanged();
 
-    public async ValueTask NotifyProbeAgentsChangedAsync(ProbeAgentsResult agents, CancellationToken ct)
-    {
-        IFleetConnections connections = Connections;
-        foreach (NodeId node in connections.OnlineNodes)
-        {
-            await connections.NotifyAsync(node, MonitorMethods.ProbeAgentsChanged, agents, MonitorJsonContext.Default.ProbeAgentsResult, ct);
-        }
-    }
-
     public async ValueTask<Result<bool>> RunTestAsync(NodeId agent, TestRunParams run, CancellationToken ct)
     {
         Result<TestRunResult> result = await Connections.RequestAsync(
diff --git a/backend/src/Monitor.Backend.Gateway/GatewayServiceCollectionExtensions.cs b/backend/src/Monitor.Backend.Gateway/GatewayServiceCollectionExtensions.cs
index 450dde1..b8701aa 100644
--- a/backend/src/Monitor.Backend.Gateway/GatewayServiceCollectionExtensions.cs
+++ b/backend/src/Monitor.Backend.Gateway/GatewayServiceCollectionExtensions.cs
@@ -20,6 +20,7 @@ public static class GatewayServiceCollectionExtensions
         services.AddFleetEnrollment();
         services.AddFleetServer(options => options.NodeIdPrefix = AgentIds.Prefix)
             .AddState<TaskSetStateProvider>()
+            .AddState<ProbeAgentsStateProvider>()
             .AddInbox<RawChunkInbox>()
             .MapMethods(MapMonitorMethods);
         return services;
@@ -39,11 +40,6 @@ public static class GatewayServiceCollectionExtensions
             .OnNotify(
                 MonitorMethods.TestStatus,
                 MonitorJsonContext.Default.TestStatusParams,
-                (context, parameters, ct) => services.GetRequiredService<TestService>().OnStatusAsync(context.Node.Id, parameters, ct))
-            .On(
-                MonitorMethods.ProbeAgents,
-                MonitorJsonContext.Default.ProbeAgentsParams,
-                MonitorJsonContext.Default.ProbeAgentsResult,
-                async (context, parameters, ct) => Result<ProbeAgentsResult>.Ok(await services.GetRequiredService<AgentService>().ProbeAgentsAsync(ct)));
+                (context, parameters, ct) => services.GetRequiredService<TestService>().OnStatusAsync(context.Node.Id, parameters, ct));
     }
 }
diff --git a/backend/src/Monitor.Backend.Gateway/ProbeAgentsStateProvider.cs b/backend/src/Monitor.Backend.Gateway/ProbeAgentsStateProvider.cs
new file mode 100644
index 0000000..e832faf
--- /dev/null
+++ b/backend/src/Monitor.Backend.Gateway/ProbeAgentsStateProvider.cs
@@ -0,0 +1,33 @@
+using System.Text.Json;
+using Fleet.Rpc;
+using Fleet.Server;
+using Monitor.Backend.Application;
+using Monitor.Protocol;
+
+namespace Monitor.Backend.Gateway;
+
+/// <summary>期望状态：为每个 Probe 下发要连接的 Agent 列表（地址、端口、证书指纹）。Agent 集合变化时由 <c>NotifyAllChanged</c> 一起重算推送。</summary>
+public sealed class ProbeAgentsStateProvider : IStateProvider
+{
+    private readonly AgentService _agents;
+
+    public ProbeAgentsStateProvider(AgentService agents)
+    {
+        _agents = agents;
+    }
+
+    public string Type => ProbeAgentList.StateType;
+
+    public async ValueTask<StateDocument?> GetAsync(NodeRecord node, CancellationToken ct)
+    {
+        if (!node.Id.Value.StartsWith(ProbeId.Prefix, StringComparison.Ordinal))
+        {
+            return null;
+        }
+
+        ProbeAgentList list = await _agents.ProbeAgentsAsync(ct);
+        return new StateDocument(list.Version, JsonSerializer.SerializeToElement(list, MonitorJsonContext.Default.ProbeAgentList));
+    }
+
+    public ValueTask OnAppliedAsync(NodeRecord node, long version, StateSyncResult result, CancellationToken ct) => ValueTask.CompletedTask;
+}
diff --git a/backend/src/Monitor.Backend.Gateway/TaskSetStateProvider.cs b/backend/src/Monitor.Backend.Gateway/TaskSetStateProvider.cs
index f72669f..6f7bfcc 100644
--- a/backend/src/Monitor.Backend.Gateway/TaskSetStateProvider.cs
+++ b/backend/src/Monitor.Backend.Gateway/TaskSetStateProvider.cs
@@ -26,6 +26,11 @@ public sealed class TaskSetStateProvider : IStateProvider
 
     public async ValueTask<StateDocument?> GetAsync(NodeRecord node, CancellationToken ct)
     {
+        if (node.Id.Value.StartsWith(ProbeId.Prefix, StringComparison.Ordinal))
+        {
+            return null; // Probe 不运行任务集
+        }
+
         DesiredTaskSet? desired = await _planner.GetDesiredAsync(node.Id, ct);
         return desired is null ? null : new StateDocument(desired.Version, JsonSerializer.SerializeToElement(desired.Document, MonitorJsonContext.Default.TaskSet));
     }
diff --git a/backend/src/Monitor.Backend.Storage.Sqlite/SqliteAgentStore.cs b/backend/src/Monitor.Backend.Storage.Sqlite/SqliteAgentStore.cs
index 13454bd..9685b25 100644
--- a/backend/src/Monitor.Backend.Storage.Sqlite/SqliteAgentStore.cs
+++ b/backend/src/Monitor.Backend.Storage.Sqlite/SqliteAgentStore.cs
@@ -166,8 +166,17 @@ public sealed class SqliteAgentStore : IAgentStore, IFleetStore
             return Result<NodeRecord>.Ok(ToNode(GetInternal(c, node.Id)!, node.MetaJson));
         }, ct);
 
+    /// <summary>Agent 在 agents 表里；Probe 的身份在 probes 表里（吊销之后按「禁用」处理，连不上）。</summary>
     async ValueTask<NodeRecord?> IFleetStore.GetNodeAsync(NodeId id, CancellationToken ct) =>
-        await GetAsync(id, ct) is { } agent ? ToNode(agent, null) : null;
+        await GetAsync(id, ct) is { } agent
+            ? ToNode(agent, null)
+            : await _db.ReadAsync(
+                c => c.QueryOne(
+                    "SELECT id, name, pubkey, created_at, revoked_at FROM probes WHERE id = @id",
+                    r => new NodeRecord(
+                        new NodeId(r.GetString(0)), r.GetString(1), r.IsDBNull(4) ? NodeStatus.Active : NodeStatus.Disabled, r.Bytes(2), [], [], null, null, r.GetInt64(3), null),
+                    ("@id", id.Value)),
+                ct);
 
     public ValueTask<NodeRecord?> FindEstablishedNodeByNameAsync(string name, CancellationToken ct) =>
         _db.ReadAsync(
diff --git a/backend/tests/Monitor.Backend.Tests/EnrollmentAndTaskSetTests.cs b/backend/tests/Monitor.Backend.Tests/EnrollmentAndTaskSetTests.cs
index e383a97..6bb7d7e 100644
--- a/backend/tests/Monitor.Backend.Tests/EnrollmentAndTaskSetTests.cs
+++ b/backend/tests/Monitor.Backend.Tests/EnrollmentAndTaskSetTests.cs
@@ -338,7 +338,7 @@ public sealed class EnrollmentAndTaskSetTests
         JsonNode identity = JsonNode.Parse(await created.Content.ReadAsStringAsync())!;
         string id = identity["probe_id"]!.GetValue<string>();
         using var key1 = Fleet.Identity.NodeIdentity.FromPkcs8(Convert.FromBase64String(identity["private_key"]!.GetValue<string>()));
-        Assert.Contains(identity["bootstrap"]!.AsArray(), b => b!["agent_id"]!.GetValue<string>() == agent.NodeId.Value);
+        Assert.True(Uri.TryCreate(identity["server"]!.GetValue<string>(), UriKind.Absolute, out _)); // Probe 直接连面板：probe.json 里是面板的地址
         await agent.WaitForTaskSetAsync(s => s.Peers.Any(p => p.ProbeId.Value == id && p.PublicKey == Convert.ToBase64String(key1.PublicKeySpki)));
 
         // The panel lists it; two probes can coexist and a duplicate name is refused
@@ -374,34 +374,6 @@ public sealed class EnrollmentAndTaskSetTests
         Assert.Equal(HttpStatusCode.NotFound, gone.StatusCode);
     }
 
-    [Fact]
-    public async Task ProbeAgentList_IsServedToAgents_AndPushedWhenTheSetOfAgentsChanges()
-    {
-        await using AgentSimulator first = await _backend.ConnectAgentAsync();
-        ProbeAgentsResult list = await first.RequestProbeAgentsAsync();
-        Assert.Contains(list.Agents, a => a.AgentId == first.NodeId && a.Host == "203.0.113.10" && a.TcpPort == 7443);
-        Assert.All(list.Agents, a => Assert.Equal(32, Convert.FromBase64String(a.Spki).Length));
-
-        await using AgentSimulator second = await _backend.ConnectAgentAsync();
-        ProbeAgentsResult pushed = await WaitForAsync(first, l => l.Agents.Any(a => a.AgentId == second.NodeId));
-        Assert.True(pushed.Version > list.Version);
-
-        using HttpResponseMessage disable = await _backend.Admin.PostAsync($"/api/admin/agents/{second.NodeId.Value}/disable", null);
-        Assert.Equal(HttpStatusCode.OK, disable.StatusCode);
-        await WaitForAsync(first, l => l.Agents.All(a => a.AgentId != second.NodeId));
-    }
-
-    private static async Task<ProbeAgentsResult> WaitForAsync(AgentSimulator agent, Func<ProbeAgentsResult, bool> predicate)
-    {
-        ProbeAgentsResult? found = null;
-        await BackendFixture.EventuallyAsync(() =>
-        {
-            found = agent.ProbeAgentLists.ToArray().LastOrDefault(predicate);
-            return Task.FromResult(found is not null);
-        });
-        return found!;
-    }
-
     private Task<HttpResponseMessage> PostEnrollAsync(JsonNode body) =>
         _backend.Anonymous.PostAsync("/api/agent/v1/enroll", BackendFixture.Json(body));
 }
diff --git a/backend/tests/Monitor.Backend.Tests/OperationsAndSecurityTests.cs b/backend/tests/Monitor.Backend.Tests/OperationsAndSecurityTests.cs
index a5526ae..4485688 100644
--- a/backend/tests/Monitor.Backend.Tests/OperationsAndSecurityTests.cs
+++ b/backend/tests/Monitor.Backend.Tests/OperationsAndSecurityTests.cs
@@ -175,9 +175,8 @@ public sealed class OperationsAndSecurityTests
             Assert.Equal("fleet_unsupported", reply.Error!.Data!.Code);
         }
 
-        // 连接仍然可用
-        ProbeAgentsResult list = await agent.RequestProbeAgentsAsync();
-        Assert.Contains(list.Agents, a => a.AgentId == agent.NodeId);
+        // 连接仍然可用：路由器照常回复
+        Assert.Equal("fleet_unsupported", (await agent.RequestRawAsync("fleet.exec")).Error!.Data!.Code);
     }
 
     [Fact]
@@ -195,9 +194,6 @@ public sealed class OperationsAndSecurityTests
     public async Task PendingNodes_CannotCallProductMethods()
     {
         await using AgentSimulator agent = await _backend.ConnectAgentAsync(autoApprove: false);
-        RpcMessage reply = await agent.RequestRawAsync(MonitorMethods.ProbeAgents, JsonSerializer.SerializeToElement(new ProbeAgentsParams(), MonitorJsonContext.Default.ProbeAgentsParams));
-        Assert.Equal("fleet_node_pending", reply.Error!.Data!.Code);
-
         // 状态与事件也不会被接受：监控数据里没有它
         await agent.SendEventAsync(AgentEventKinds.ProbeConnected, _backend.DefaultProbeId);
         await Task.Delay(200);
diff --git a/backend/tests/Monitor.Backend.Tests/ProbeEndToEndTests.cs b/backend/tests/Monitor.Backend.Tests/ProbeEndToEndTests.cs
index 2bc74b1..21562d1 100644
--- a/backend/tests/Monitor.Backend.Tests/ProbeEndToEndTests.cs
+++ b/backend/tests/Monitor.Backend.Tests/ProbeEndToEndTests.cs
@@ -19,13 +19,13 @@ public sealed class ProbeEndToEndTests
         (await _backend.GetJsonAsync(_backend.Admin, $"/api/admin/raw/chunks?agent_id={agent.Id}"))["items"]!.AsArray().Count(c => c!["kind"]!.GetValue<string>() == kind);
 
     [Fact]
-    public async Task Probe_ConnectsThroughTheBootstrapList_RunsTheLineTasks_AndTheBackendStoresMergedChunks()
+    public async Task Probe_GetsTheAgentListFromThePanel_RunsTheLineTasks_AndTheBackendStoresMergedChunks()
     {
         await using AgentHarness agent = await AgentHarness.StartAsync(_backend);
         await agent.OverrideLineTasksAsync(rateHz: 30);
         await using ProbeHarness probe = await ProbeHarness.StartAsync(_backend);
 
-        await BackendFixture.EventuallyAsync(() => Task.FromResult(probe.App.IsConnected(agent.Id)), because: "the probe should connect to the bootstrap agent");
+        await BackendFixture.EventuallyAsync(() => Task.FromResult(probe.App.IsConnected(agent.Id)), because: "the panel sends the agent list to the probe, which then connects");
         await BackendFixture.EventuallyAsync(async () => (await AgentViewAsync(agent))["probe_connected"]!.GetValue<bool>());
         await BackendFixture.EventuallyAsync(() => Task.FromResult(probe.App.Connection(agent.Id)!.RoleCount == 2), because: "udp_echo and tcp_echo");
 
@@ -38,6 +38,26 @@ public sealed class ProbeEndToEndTests
         Assert.InRange(probe.App.Connection(agent.Id)!.ClockOffsetUs, -20_000, 20_000);
     }
 
+    [Fact]
+    public async Task Probe_IntroducesItselfToThePanel_AndARevokedProbeIsLockedOut()
+    {
+        await _backend.SiteMustBePublicAsync();
+        await using ProbeHarness probe = await ProbeHarness.StartAsync(_backend);
+        string path = "/api/admin/probes/" + probe.ProbeId;
+
+        // 直连面板：在线，hello 里的系统、架构和版本都被记下来了
+        await BackendFixture.EventuallyAsync(async () => (await _backend.GetJsonAsync(_backend.Admin, path))["online"]!.GetValue<bool>(), because: "the probe links to the panel");
+        await BackendFixture.EventuallyAsync(
+            async () => (await _backend.GetJsonAsync(_backend.Anonymous, "/api/public/nodes"))["items"]!.AsArray().Any(n => n!["id"]!.GetValue<string>() == probe.ProbeId && n["os"] is not null && n["arch"] is not null),
+            because: "the platform comes from the probe's own hello");
+
+        // 吊销：面板立刻断开它，之后连不上
+        using HttpResponseMessage revoked = await _backend.Admin.PostAsync(path + "/revoke", null);
+        revoked.EnsureSuccessStatusCode();
+        await BackendFixture.EventuallyAsync(async () => !(await _backend.GetJsonAsync(_backend.Admin, path))["online"]!.GetValue<bool>(), because: "a revoked probe is disconnected and cannot come back");
+        Assert.False(probe.App.Link.IsConnected);
+    }
+
     [Fact]
     public async Task Probe_FollowsTheAgentListThePanelKnows_AndSavesItForTheNextStart()
     {
diff --git a/backend/tests/Monitor.TestSupport/AgentSimulator.cs b/backend/tests/Monitor.TestSupport/AgentSimulator.cs
index 9510343..7e26f4e 100644
--- a/backend/tests/Monitor.TestSupport/AgentSimulator.cs
+++ b/backend/tests/Monitor.TestSupport/AgentSimulator.cs
@@ -46,8 +46,6 @@ public sealed class AgentSimulator : IAsyncDisposable
 
     public ConcurrentQueue<TaskSet> TaskSets { get; } = new();
 
-    public ConcurrentQueue<ProbeAgentsResult> ProbeAgentLists { get; } = new();
-
     public ConcurrentQueue<TestRunParams> TestRuns { get; } = new();
 
     public ConcurrentQueue<TestId> TestCancels { get; } = new();
@@ -190,12 +188,6 @@ public sealed class AgentSimulator : IAsyncDisposable
             new TestStatusParams { TestId = test, Status = status, Phase = phase, ErrorCode = errorCode },
             MonitorJsonContext.Default.TestStatusParams));
 
-    public async Task<ProbeAgentsResult> RequestProbeAgentsAsync()
-    {
-        RpcMessage reply = await RequestAsync(MonitorMethods.ProbeAgents, JsonSerializer.SerializeToElement(new ProbeAgentsParams(), MonitorJsonContext.Default.ProbeAgentsParams));
-        return reply.Result!.Value.Deserialize(MonitorJsonContext.Default.ProbeAgentsResult)!;
-    }
-
     public async Task<RpcMessage> RequestRawAsync(string method, JsonElement? parameters = null) => await RequestAsync(method, parameters);
 
     public async Task<TaskSet> WaitForTaskSetAsync(Func<TaskSet, bool> predicate, TimeSpan? timeout = null)
@@ -416,9 +408,6 @@ public sealed class AgentSimulator : IAsyncDisposable
                 TestCancels.Enqueue(cancel.TestId);
                 await SendAsync(RpcMessage.Success(message.Id!.Value, new TestRunResult { Accepted = true }, MonitorJsonContext.Default.TestRunResult));
                 break;
-            case MonitorMethods.ProbeAgentsChanged:
-                ProbeAgentLists.Enqueue(message.Params!.Value.Deserialize(MonitorJsonContext.Default.ProbeAgentsResult)!);
-                break;
         }
     }
 }
diff --git a/backend/tests/Monitor.TestSupport/ProbeSimulator.cs b/backend/tests/Monitor.TestSupport/ProbeSimulator.cs
index 8e3c5df..d2734a1 100644
--- a/backend/tests/Monitor.TestSupport/ProbeSimulator.cs
+++ b/backend/tests/Monitor.TestSupport/ProbeSimulator.cs
@@ -61,8 +61,6 @@ public sealed class ProbeSimulator : IAsyncDisposable
 
     public ConcurrentQueue<TestId> Aborts { get; } = new();
 
-    public ConcurrentQueue<ProbeAgentsResult> AgentLists { get; } = new();
-
     public bool IsConnected => _rpc is not null && !_stop.IsCancellationRequested;
 
     public long NowUs() => (TimeProvider.System.GetTimestamp() - _origin) * 1_000_000 / TimeProvider.System.TimestampFrequency;
@@ -347,14 +345,6 @@ public sealed class ProbeSimulator : IAsyncDisposable
                     probe.Aborts.Enqueue(abort.TestId);
                     return ValueTask.CompletedTask;
                 })
-            .OnNotify(
-                MonitorMethods.ProbeAgentsChanged,
-                MonitorJsonContext.Default.ProbeAgentsResult,
-                (probe, list, _) =>
-                {
-                    probe.AgentLists.Enqueue(list);
-                    return ValueTask.CompletedTask;
-                })
             .OnNotify(
                 FleetMethods.OutboxAck,
                 FleetRpcContext.Default.OutboxAckParams,
diff --git a/docs/api.md b/docs/api.md
index 1e847ce..f8ffdc8 100644
--- a/docs/api.md
+++ b/docs/api.md
@@ -91,7 +91,7 @@
 
 `GET /api/public/about`：`{show_build, backend}`。`show_build` 关着时 `backend` 是 `null`；打开后 `backend` 是 `{version, tag, built_at}`（后端自己的版本、tag、构建时间，不含提交号）。
 
-- 系统和架构是节点自报的：Agent 在 `fleet.hello` 里，Probe 随列表同步（`monitor.probe.agents` 的 `platform`）告诉 Agent，Agent 再放进心跳的 `probes[]`。只有粗粒度的名字，没有主机名、内核版本、CPU 型号。
+- 系统和架构是节点自报的：Agent 和 Probe 都在各自连面板时的 `fleet.hello` 里自报。只有粗粒度的名字，没有主机名、内核版本、CPU 型号。
 - 国家和运营商由 **Backend** 用节点的来源地址向 IP 归属服务查一次（`Monitor__GeoLookupUrl`，缺省 `https://ip.007995.xyz`，留空就不查）：Probe 用 Agent 看到的来源 IP，Agent 用它的公开地址。**Probe 和 Agent 不访问任何外部服务。** 只查公网地址（回环、内网、CGNAT、链路本地一律不发出去）；同一个地址一周内只查一次，失败 10 分钟后再试；查到的只留国家代码和运营商，地址只存在 Backend 内部的 `node_meta.geo_host`，不对外。
 
 ### 2.4 测试结果与目录
diff --git a/docs/deployment.md b/docs/deployment.md
index 0a621fd..a834159 100644
--- a/docs/deployment.md
+++ b/docs/deployment.md
@@ -157,6 +157,7 @@ OpenWrt 默认不带 OpenSSL：`opkg install libopenssl3`（较新的快照和 2
 
 ```text
 浏览器 / 本机前端 ──► https://<公网域名> ──隧道（Cloudflare Tunnel 之类）──► 家宽机器: Backend (:29181)
+                                                          家宽机器: Probe ──WSS 到 https://<公网域名>──► Backend（身份、Agent 列表）
                                                           家宽机器: Probe ──TCP/UDP 7443、TCP 7444──► VPS: Agent
                                                                          VPS: Agent ──WSS 到 https://<公网域名>──► Backend
 ```
@@ -165,7 +166,7 @@ OpenWrt 默认不带 OpenSSL：`opkg install libopenssl3`（较新的快照和 2
 
 - **Backend 通过隧道暴露**：隧道把一个公网域名转到家宽机器的 `29181`；Backend 监听 `http://0.0.0.0:29181`（只写一个监听地址，同时写 `0.0.0.0` 和 `[::]` 会报地址已被占用），家宽路由器的防火墙不放行这个端口，公网只能经隧道进来。Agent 用 `fleet-enroll --server https://<公网域名>` 注册，之后用 WSS 连回 Backend。
 - **经隧道注册之后，检查 Agent 的 `public_host`**：Backend 看到的来源地址是隧道的出口，不是 VPS 的地址，要改成 VPS 的真实地址，Probe 才连得上。
-- **先注册 Agent，再创建 Probe**：`probe.json` 的 `bootstrap` 里才有这个 Agent；Probe 启动后会通过 Agent 同步列表。
+- **Probe 直连面板**：`probe.json` 里的 `server` 就是面板地址（取自 `Monitor__PublicUrl`，没配就用创建它时的请求地址），Probe 用它连面板，Agent 列表由面板下发；先注册还是先创建 Probe 都可以。
 - **小 VPS 把 `limits.max_total_mbps` 调低**（试跑时用 100）；Agent 常驻约 23 MB，VPS 上原有的服务不受影响，结束后删除 `/opt/…`、停掉进程即可，没有留下任何东西。
 - 家宽的 IPv6 前缀会在路由器重新拨号（比如停电）后变化，SSH 地址要跟着换；面板走隧道的域名，不受影响。
 - 本地电脑没有直连 VPS 的路径时，用家宽机器当跳板（`SSH_ASKPASS` + `SSH_ASKPASS_REQUIRE=force`，密码放环境变量，不写进文件）。
diff --git a/docs/enrollment.md b/docs/enrollment.md
index eeb4b72..dbf043a 100644
--- a/docs/enrollment.md
+++ b/docs/enrollment.md
@@ -7,7 +7,7 @@
 | 主体 | 凭据 | 生成方 | Backend 保存 |
 | --- | --- | --- | --- |
 | Agent | Fleet 节点身份（ECDSA P-256）+ 面向 Probe 的 TLS 证书 | `fleet-enroll` | 公钥、SPKI 指纹 |
-| Probe | Fleet 节点身份 | 面板生成 `probe.json`（可以有多个 Probe，每个独立吊销） | 公钥 |
+| Probe | Fleet 节点身份（同时用于连面板和连 Agent） | 面板生成 `probe.json`（可以有多个 Probe，每个独立吊销） | 公钥 |
 | 面板用户 | 账号 + 密码（PBKDF2-SHA256） | 面板 | 密码哈希 |
 | API 令牌 | 随机高熵令牌，作用域为 `read` 或 `admin` | 面板 | SHA-256 |
 | 发布签名 | 离线的 ECDSA 发布密钥 | CI 或离线环境 | 只在节点的 `fleet-updater` 中配置公钥，**面板不保存** |
@@ -30,7 +30,7 @@ install.sh（只做安装，不包含任何远程控制功能）
 面板收到 OnEnrolled（Monitor 挂钩）
   ├─ public_host 未提供时，取注册请求的来源 IP
   ├─ 按“线路任务模板”为该 Agent 计算有效任务集（TaskSet）
-  └─ 通知 Probe（通过 monitor.probe.agents_changed）→ Probe 自动连接新 Agent
+  └─ 面板把新的 Agent 列表作为期望状态推给所有 Probe → Probe 自动连接新 Agent
      从安装到开始出数据，全程不需要手工配置
 ```
 
@@ -38,21 +38,20 @@ install.sh（只做安装，不包含任何远程控制功能）
 
 ## 3. Probe 身份与 Agent 列表同步
 
-Probe 不认识 Backend，它需要的 Agent 列表经由任意一个已连接的 Agent 获取。
+Probe 直接连面板（Fleet 长连接，身份是下面生成的密钥），Agent 列表由面板作为期望状态下发；测量数据仍然只走 Probe → Agent。
 
 ```text
 面板：POST /api/admin/probes {name}
-  └─ 生成 Fleet 节点身份，返回 probe.json（只能下载一次；轮换密钥 /rotate 会使旧密钥失效，吊销 /revoke 会让所有 Agent 断开它）
-     { probe_id, private_key, bootstrap: [ {agent_id, host, tcp_port, spki}, ... ],
+  └─ 生成 Fleet 节点身份，返回 probe.json（只能下载一次；轮换密钥 /rotate 会使旧密钥失效，吊销 /revoke 会让面板和所有 Agent 断开它）
+     { probe_id, private_key, server: "https://panel...",
        limits: { max_test_mbps, max_total_pps } }   ← 本地硬上限，面板无法修改；在路由器上建议调低
 
 Probe 启动
-  ├─ 依次尝试 bootstrap 中的 Agent，与其中一个建立 Fleet 点对点会话（peer 用途签名）
-  ├─ monitor.probe.agents ──> Agent ──> Backend
-  │  <── { version, agents: [ {agent_id, host, tcp_port, udp_ports, spki}... ] }
-  ├─ 调和：新增的 Agent → 建立会话；被移除或禁用的 → 断开
-  └─ 之后列表的任何变化，都通过已连接的 Agent 推送 monitor.probe.agents_changed；
-     Probe 用 Fleet.Hosting.ConfigStore 把最新列表写回 bootstrap（这是配置，不是测量数据）
+  ├─ 连接 server：Fleet 长连接（用 probe_id 和私钥认证），fleet.hello 带上系统、架构和构建信息
+  ├─ 面板推送期望状态 probe_agents：{ version, agents: [ {agent_id, host, tcp_port, udp_ports, spki}... ] }
+  ├─ 调和：新增的 Agent → 建立点对点会话（peer 用途签名）；被移除或禁用的 → 断开
+  └─ 之后列表的任何变化（Agent 注册、禁用、地址或证书变化），面板都重新推送同一种期望状态；
+     Probe 用 Fleet.Hosting.ConfigStore 把最新列表写回 agents.json（这是配置，不是测量数据；面板暂时连不上时，Probe 靠它继续测量）
 ```
 
 - 每个 Agent 通过自己的期望状态（`TaskSet.peers`）获得 Probe 的公钥，用来验证点对点会话的签名。
@@ -70,7 +69,7 @@ Probe 启动
     "allowed_target_cidrs": [],
     "max_concurrent_tests": 1
   },
-  "fleet_policy": { "allow_methods": ["monitor.test.run", "monitor.test.cancel", "monitor.probe.agents_changed"] }
+  "fleet_policy": { "allow_methods": ["monitor.test.run", "monitor.test.cancel"] }
 }
 ```
 
diff --git a/docs/project-layout.md b/docs/project-layout.md
index b3a7c83..01485cf 100644
--- a/docs/project-layout.md
+++ b/docs/project-layout.md
@@ -155,13 +155,12 @@ Agent Program.cs
   peers    = FleetLink.PeerListener(cfg.Listen, identity, ProbeRpcContext.Default)   Probe 会话
   host     = new ModuleHost(log)
   ├─ link、peers                  （Fleet）
-  ├─ ProbeDirectoryRelay          转发 monitor.probe.agents / agents_changed
   ├─ UdpMux / TcpAcceptor         UDP/TCP/TLS 数据端口（Measurement 共享），按 (session, stream) 分发给监听方积木；AgentAdmission 提供重放、限速
   ├─ ChunkModule                  合并 Probe 与本端的列 → 切块 → link.Outbox
   └─ TestModule                   按需测试的阶段编排
 
 Probe Program.cs
-  ├─ AgentDirectoryModule         维护 Agent 列表（bootstrap → monitor.probe.agents → agents_changed）
+  ├─ FleetLink（到面板）           身份、hello、期望状态 probe_agents（Agent 列表）
   ├─ PeerPool（Fleet）             每个 Agent 一个 FleetLink.ToPeer：认证、重连
   ├─ TaskReconciler               每个会话各自的期望状态（与 Agent 相同的代码）
   ├─ ColumnShipper                本端的列通过会话的 Outbox 发送（二进制通道 17）
diff --git a/docs/protocol.md b/docs/protocol.md
index ba981f2..a4b4486 100644
--- a/docs/protocol.md
+++ b/docs/protocol.md
@@ -11,7 +11,7 @@ Monitor 的两条控制链路都建立在 Fleet 之上：
 
 | Monitor 需要的能力 | 使用的 Fleet 机制 | Monitor 提供的内容 |
 | --- | --- | --- |
-| 下发任务 | 期望状态 `fleet.state.sync` | 文档类型 `TaskSet`，包括 `tasks[]`、`peers`（Probe 公钥），以及 `probe_agents` 的版本 |
+| 下发任务 | 期望状态 `fleet.state.sync` | 文档类型 `TaskSet`，包括 `tasks[]`、`peers`（Probe 公钥），（Probe 的 Agent 列表是另一种期望状态，见下） |
 | 上报原始块 | 发件箱，二进制通道 **16** | `RawChunk`（自描述，见 [measurement.md](measurement.md) 第 4 节），`msg_id = chunk_id` |
 | Probe 交付列块 | 点对点会话的发件箱，二进制通道 **17** | 列块：`u32 stream_id \| u32 first_seq \| u32 count \| 列数据(Brotli)` |
 | 节点自身状态 | `fleet.heartbeat` 的附加字段 | `sessions`、`pps_in/out`、`dropped_invalid`、`dropped_rate_limited`、`queue_bytes` |
@@ -30,8 +30,6 @@ Monitor 的两条控制链路都建立在 Fleet 之上：
 | `monitor.event` | A→B | 通知 | `kind`（`probe_connected`（`detail` 是 `probe_id`，`probe` 里带版本、远端地址和连接时间）、`probe_disconnected`、`endpoint_changed`、`session_rejected`、`clock_step`、`gap`、`cpu_saturated`（节点进程 CPU 饱和，可能影响测量，由 Probe 或 Agent 上报））、`at_utc`、`detail` |
 
 心跳的附加字段里有 `probes[]`：Agent 当前连着的每个 Probe（`id`、`version`、`remote`、`since_utc_ms`），每次都是完整快照，Backend 靠它纠正错过的连接事件。点对点握手的认证消息里可以带 Probe 的 `version`（只用于展示）。块头里的 `probe_id` 以 Agent 认证过的会话为准，Probe 自报的值会被覆盖。
-| `monitor.probe.agents` | A→B | 请求 | 代理 Probe 获取 Agent 列表 → `version`、`agents[]` |
-| `monitor.probe.agents_changed` | B→A | 通知 | Agent 列表发生变化，由 Agent 转发给 Probe |
 
 ### Probe ↔ Agent（点对点会话）
 
@@ -42,8 +40,6 @@ Monitor 的两条控制链路都建立在 Fleet 之上：
 | `monitor.test.phase` | A→P | 请求 | 测试的一个阶段：`test_id`、`phase`、`kind`、`params`、`stream_id`、`duration_s`、`port` → `accepted`；Probe 在回复之前准备好自己一侧的角色（单向数据流：先发几个探活包让 Agent 学到源地址） |
 | `monitor.test.phase_end` | A→P | 请求 | `sent_count`（Agent 发出的包数）→ `fragments`：Probe 收尾，把列块交给 Agent，回复交出的个数；Agent 等全部列块合并上传之后才进入下一阶段 |
 | `monitor.test.abort` | A→P | 通知 | `test_id` |
-| `monitor.probe.agents` | P→A | 请求 | `have_version` → `version`、`agents[]`：Agent 代 Probe 向 Backend 查询（链路断开时 `fleet_node_offline`） |
-| `monitor.probe.agents_changed` | A→P | 通知 | `version`、`agents[]`（Agent 从 Backend 转发） |
 | `fleet.outbox.ack` | 双向 | 通知 | Probe 的列块（通道 17）是至少一次投递，Agent 每收到一个就确认，重复到达的只处理一次 |
 
 会话密钥不需要单独的方法：点对点握手（TLS 固定证书 → `peer.challenge` → Probe 用身份私钥签 `(peer_id, nonce, client_pub, server_pub)` → 两端各自 ECDH + HKDF）直接得到 `session_id` 和 `session_key`，`peer.auth` 的应答只回显 `session_id` 用来互相确认。
diff --git a/docs/roadmap.md b/docs/roadmap.md
index 5aaf7d2..2ade908 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -40,7 +40,7 @@
 
 ## M3 Backend：注册、RPC、存储
 
-- 在 Fleet 之上接入：`IFleetStore` 实现、`TaskSet` 状态提供者（有效任务集的计算与下发）、`RawChunk` 收件箱、`monitor.*` 方法、`monitor.probe.agents` 同步。
+- 在 Fleet 之上接入：`IFleetStore` 实现、`TaskSet` 状态提供者（有效任务集的计算与下发）、`RawChunk` 收件箱、`monitor.*` 方法、`probe_agents` 期望状态（Probe 直连面板）同步。
 - 段文件与索引、发件箱 ACK、去重、缺口；管理员账号、Cookie 会话、API 令牌；`/api/admin` 中的节点、令牌、Probe 身份、任务管理。
 
 **验收**：用一行安装命令部署一台新 VPS，自动注册 → 自动生成线路任务 → Probe 自动连接 → 1 分钟内在 `/api/admin` 中看到它的原始块。整个过程不需要手工配置。
@@ -95,7 +95,7 @@
 - **M5 的一部分**：保留清理。
 - **F1 的节点部分**：`Fleet.Link`（链路、发件箱、点对点监听与连接）、`Fleet.Hosting`、`Fleet.Enrollment.Client` 与 `fleet-enroll`。
 - **Agent（M1 的一部分）**：`Monitor.Agent`（NativeAOT 可发布）与 `Monitor.Measurement`（列块合并、预算守卫）。UDP/TCP 数据面（认证、重放窗口、限速、端点学习）、线路任务调和、目标任务（`icmp_echo`、`connect`）、按需测试编排（`udp_train` 由 Agent 发包）。测试里的假 Probe（`ProbeSimulator`）通过真实的点对点握手连接真实的 Agent 与后端，端到端覆盖。详见 `backend/agent/README.md`。
-- **Probe（M0/M2 的一部分）**：`Monitor.Probe`（NativeAOT，5.6 MB，常驻约 22 MB）——Agent 列表（bootstrap → 由 Agent 代为查询 → 推送，写回 `agents.json`）、每个 Agent 一个自动重连的会话、`udp_echo`/`tcp_echo`/`connect`/`hold` 角色、`udp_train` 接收端（按序号范围切块）、时钟偏移估计、有界发件箱。真实 Probe + 真实 Agent + 真实后端的端到端测试，以及用发布的 AOT 二进制做过的冒烟（内存稳定、CPU < 1%）。详见 `backend/probe/README.md`。
+- **Probe（M0/M2 的一部分）**：`Monitor.Probe`（NativeAOT，5.6 MB，常驻约 22 MB）——Agent 列表（由面板经 Fleet 长连接直接下发，写回 `agents.json`）、每个 Agent 一个自动重连的会话、`udp_echo`/`tcp_echo`/`connect`/`hold` 角色、`udp_train` 接收端（按序号范围切块）、时钟偏移估计、有界发件箱。真实 Probe + 真实 Agent + 真实后端的端到端测试，以及用发布的 AOT 二进制做过的冒烟（内存稳定、CPU < 1%）。详见 `backend/probe/README.md`。
 - **采集积木统一（重构）**：Probe 和 Agent 的数据面合并成 `Monitor.Measurement` 里的一份实现（每种采集方法一个文件、拨号方和监听方一对角色，`UdpMux`/`Tcp`/`RowStore` 共用）；合并改成由 Kind 的流声明（`Driver`、`Key`）驱动；测试方案移回 Backend；架构测试禁止采集层出现业务概念。
 - **TCP 内核采样与长尾**：`tcp_echo` 两端各自采样套接字的 `TCP_INFO`（Linux，`union` 流拼接）；`tcp.rtt` 增加 `p999`、`max`、长尾比 `tail`，新增 `tcp.slow`（块内基线的慢回显占比）；序列接口增加 `anchor=latest`。
 - **打包与部署（M6 的一部分）**：`scripts/publish.sh`（linux-musl-x64、linux-x64 在 NativeAOT SDK 容器里构建）、`scripts/package.sh`、`packaging/`（`install.sh`、systemd 单元、OpenWrt procd 脚本）、节点启动时的 OpenSSL 自检。在 Alpine、Debian、OpenWrt 官方 rootfs、带 systemd 的 Debian 容器里验证过。详见 `docs/deployment.md`。
diff --git a/web/admin/src/pages/Probes.tsx b/web/admin/src/pages/Probes.tsx
index 6308d41..852b229 100644
--- a/web/admin/src/pages/Probes.tsx
+++ b/web/admin/src/pages/Probes.tsx
@@ -30,7 +30,7 @@ function IdentityDialog({ identity, title, onClose }: { identity: ProbeIdentityD
           </button>
           <CopyButton text={json} label="复制内容" />
         </div>
-        <Field label="在家宽机器上" hint="保存为 /etc/monitor/probe.json，然后启动 Probe；它会根据 bootstrap 列表连接 Agent，之后的 Agent 列表由面板同步。">
+        <Field label="在家宽机器上" hint="保存为 /etc/monitor/probe.json，然后启动 Probe；它会连接 probe.json 里的面板地址，Agent 列表和更新都由面板下发。">
           <pre className="code">{`monitor-probe --config /etc/monitor/probe.json`}</pre>
         </Field>
         <details>
@@ -126,7 +126,14 @@ export function Probes() {
             <div className="row wrap">
               <span style={{ fontSize: 18, fontWeight: 700 }}>{p.name}</span>
               <NodeTag info={infos.get(p.id)} />
-              {p.revoked ? <Chip tone="bad">已吊销</Chip> : <Chip tone={p.connections.length > 0 ? 'ok' : ''}>{p.connections.length > 0 ? `连着 ${p.connections.length} 个 Agent` : '没有连接'}</Chip>}
+              {p.revoked ? (
+                <Chip tone="bad">已吊销</Chip>
+              ) : (
+                <>
+                  <Chip tone={p.online ? 'ok' : ''}>{p.online ? '已连面板' : '未连面板'}</Chip>
+                  <Chip tone={p.connections.length > 0 ? 'ok' : ''}>{p.connections.length > 0 ? `连着 ${p.connections.length} 个 Agent` : '没有连接'}</Chip>
+                </>
+              )}
               <span className="mono faint">{p.id}</span>
               <span className="right row wrap">
                 <button type="button" className="btn small" onClick={() => setRenaming(p)}>
diff --git a/web/shared/api/schema.ts b/web/shared/api/schema.ts
index 4a5da8b..76982c1 100644
--- a/web/shared/api/schema.ts
+++ b/web/shared/api/schema.ts
@@ -963,13 +963,6 @@ export interface components {
             behavior: string;
             samplers: string[];
         };
-        BootstrapAgentDto: {
-            agent_id: string;
-            host: string;
-            /** Format: int32 */
-            tcp_port: number | string;
-            spki: string;
-        };
         BuildDto: {
             version: string;
             tag: null | string;
@@ -1445,12 +1438,13 @@ export interface components {
             /** Format: date-time */
             revoked_at: unknown;
             revoked: boolean;
+            online: boolean;
             connections: components["schemas"]["ProbeConnectionDto"][];
         };
         ProbeIdentityDto: {
             probe_id: string;
             private_key: string;
-            bootstrap: components["schemas"]["BootstrapAgentDto"][];
+            server: string;
             limits: components["schemas"]["ProbeLimitsDto"];
         };
         ProbeLimitsDto: {