fix: count plugin ssh logins toward host status and stop showing reachable as a warning

plugins/homepage/src/frontend/widgets/HostGridWidget.tsx

@@ -24,7 +24,7 @@ function StatusDot({ status }: { status: string }) {
     status === "online"
       ? getAccentColor()
       : status === "reachable"
-        ? "#fbbf24"
+        ? `color-mix(in srgb, ${getAccentColor()} 40%, transparent)`
         : status === "offline"
           ? "#ef4444"
           : "#6b7280";

plugins/homepage/src/frontend/widgets/HostStatusWidget.tsx

@@ -60,7 +60,7 @@ function HostStatusWidget({
     : online
       ? getAccentColor()
       : reachable
-        ? "#fbbf24"
+        ? `color-mix(in srgb, ${getAccentColor()} 40%, transparent)`
         : "#ef4444";
   const onlineLabel = !statusInfo
     ? t("common.unknown")

plugins/network-topology/src/frontend/NetworkGraphCard.tsx

@@ -142,7 +142,9 @@ function buildNodeSvg(
       ? "rgb(16,185,129)"
       : resolveCssVar("--accent-brand", "rgb(16,185,129)");
   } else if (status === "reachable") {
-    statusColor = "rgb(251,191,36)";
+    statusColor = useRealColors
+      ? "rgba(16,185,129,0.4)"
+      : `color-mix(in srgb, ${resolveCssVar("--accent-brand", "rgb(16,185,129)")} 40%, transparent)`;
   } else if (isOffline) {
     statusColor = useRealColors ? "rgb(239,68,68)" : "rgba(16,185,129,0.2)";
   } else {

src/backend/hosts/status/host-status-service.ts

@@ -3,9 +3,11 @@
  *
  * Every host with status checks on gets a TCP connection to its port on a
  * timer. That alone says "reachable". A host becomes "online" when a login
- * worked: an open terminal session, or a plugin reporting one through
- * ctx.hosts.status.reportLogin. Probing never logs in: on RADIUS or Duo backed
- * devices a login fires a real 2FA push, every interval.
+ * worked: an open terminal session, any plugin connection through ctx.ssh, or
+ * a plugin reporting one through ctx.hosts.status.reportLogin. It stays online
+ * for LOGIN_FRESH_MS after the last login while the port still answers.
+ * Probing never logs in: on RADIUS or Duo backed devices a login fires a real
+ * 2FA push, every interval.
  *
  * Polling is demand driven. A user asking for statuses starts polling their
  * own hosts; nothing is probed for a user who never opened the app.
@@ -31,6 +33,8 @@ export const GLOBAL_STATUS_INTERVAL_KEY = "global_status_check_interval";
 export const DEFAULT_STATUS_INTERVAL = 60;
 /** A status younger than this is fresh enough for check(). */
 const FRESH_MS = 30_000;
+/** How long a successful login keeps a reachable host online. */
+export const LOGIN_FRESH_MS = 60 * 60_000;
 
 export interface HostStatusEntry {
   status: HostStatus;
@@ -77,6 +81,7 @@ export interface HostStatusDeps {
   ) => Promise<boolean>;
   globalInterval: () => number;
   emit: (payload: HostStatusPayload) => void;
+  now?: () => number;
 }
 
 function parseJumpHosts(raw: string | null): Array<{ hostId: number }> {
@@ -154,7 +159,7 @@ export class HostStatusService {
   private readonly owners = new Map<number, string>();
   private readonly inFlight = new Map<number, Promise<void>>();
   private readonly sessionOnline = new Set<number>();
-  private readonly loggedIn = new Set<number>();
+  private readonly lastLogin = new Map<number, number>();
   private readonly startedUsers = new Set<string>();
   private readonly portResolvers = new Map<string, Set<PortResolver>>();
   private readonly limiter = new ConcurrentLimiter(20);
@@ -247,11 +252,11 @@ export class HostStatusService {
     outcome: { ok: boolean; hostKeyChanged?: boolean },
   ): void {
     if (outcome.ok) {
-      this.loggedIn.add(hostId);
+      this.lastLogin.set(hostId, this.now());
       this.set(hostId, { status: statusAfterAuthentication(true) });
       return;
     }
-    this.loggedIn.delete(hostId);
+    this.lastLogin.delete(hostId);
     this.set(hostId, {
       status: this.sessionOnline.has(hostId)
         ? "online"
@@ -346,7 +351,7 @@ export class HostStatusService {
     this.stopPolling(hostId);
     this.store.delete(hostId);
     this.owners.delete(hostId);
-    this.loggedIn.delete(hostId);
+    this.lastLogin.delete(hostId);
   }
 
   private clearHostKeyReason(hostId: number): void {
@@ -361,18 +366,29 @@ export class HostStatusService {
   private setSessionOnline(hostId: number, online: boolean): void {
     if (online) {
       this.sessionOnline.add(hostId);
+      this.lastLogin.set(hostId, this.now());
       if (this.polled.has(hostId)) this.set(hostId, { status: "online" });
       return;
     }
     this.sessionOnline.delete(hostId);
     if (
-      !this.loggedIn.has(hostId) &&
+      !this.isLoggedIn(hostId) &&
       this.store.get(hostId)?.status === "online"
     ) {
       this.set(hostId, { status: "reachable" });
     }
   }
 
+  private now(): number {
+    return this.deps.now?.() ?? Date.now();
+  }
+
+  private isLoggedIn(hostId: number): boolean {
+    if (this.sessionOnline.has(hostId)) return true;
+    const at = this.lastLogin.get(hostId);
+    return at !== undefined && this.now() - at < LOGIN_FRESH_MS;
+  }
+
   private intervalMs(target: StatusTarget): number {
     const seconds = target.statusCheckInterval ?? this.deps.globalInterval();
     const intervalMs = Math.max(5, seconds) * 1000;
@@ -452,10 +468,10 @@ export class HostStatusService {
 
     const current = this.store.get(target.id);
     this.set(target.id, {
-      status:
-        reachable && this.sessionOnline.has(target.id)
-          ? "online"
-          : statusAfterReachabilityCheck(reachable, current?.status),
+      status: statusAfterReachabilityCheck(
+        reachable,
+        this.isLoggedIn(target.id),
+      ),
       ...(reachable && current?.reason === "host_key_changed"
         ? { reason: "host_key_changed" as const }
         : {}),

src/backend/hosts/status/host-status.ts

@@ -10,10 +10,10 @@ export function isHostKeyVerificationError(error: unknown): boolean {
 
 export function statusAfterReachabilityCheck(
   reachable: boolean,
-  current?: HostStatus,
+  loggedIn: boolean,
 ): HostStatus {
   if (!reachable) return "offline";
-  return current === "online" ? "online" : "reachable";
+  return loggedIn ? "online" : "reachable";
 }
 
 export function statusAfterAuthentication(

src/backend/plugins/ctx-ssh-auth.ts

@@ -164,6 +164,18 @@ export function createPluginSsh({ manifest, bag, audit }: Deps): PluginSsh {
     return { ...(host as unknown as SshConnectHost), userId };
   };
 
+  /** A login to a saved host core resolved counts toward its status dot. */
+  const reportLogin = (host: number | PluginSshHost) => {
+    const hostId =
+      typeof host === "number" ? host : resolvedHosts.get(host)?.host.id;
+    if (!Number.isInteger(hostId) || hostId <= 0) return;
+    void import("../hosts/status/host-status-service.js")
+      .then(({ hostStatusService }) =>
+        hostStatusService.reportLogin(hostId, { ok: true }),
+      )
+      .catch(() => {});
+  };
+
   /** Checks, connects and audits one new connection. */
   const connectOnce = async (
     host: number | PluginSshHost,
@@ -201,6 +213,7 @@ export function createPluginSsh({ manifest, bag, audit }: Deps): PluginSsh {
         sock: options?.sock as MutableConnectConfig["sock"],
       });
       await audit("ssh_connect", describeHost(host), { success: true });
+      reportLogin(host);
 
       const dispose = () => {
         open.delete(dispose);

src/backend/tests/hosts/status/host-status-service.test.ts

@@ -9,7 +9,7 @@ vi.mock("../../../utils/logger.js", () => ({
   pluginLogger: { info: vi.fn(), warn: vi.fn(), error: vi.fn() },
 }));
 
-const { HostStatusService, toStatusTarget } =
+const { HostStatusService, toStatusTarget, LOGIN_FRESH_MS } =
   await import("../../../hosts/status/host-status-service.js");
 const { hostSessionStatus } =
   await import("../../../hosts/host-session-status.js");
@@ -35,6 +35,7 @@ function setup(
   targets: Target[],
   reachable = true,
   shared: Record<string, number[]> = {},
+  clock = { now: 1_000_000 },
 ) {
   const emitted: unknown[] = [];
   const ping = vi.fn(async () => reachable);
@@ -54,6 +55,7 @@ function setup(
     pingThroughJumpHosts,
     globalInterval: () => 60,
     emit: (payload) => emitted.push(payload),
+    now: () => clock.now,
   });
   return { service, emitted, ping, pingThroughJumpHosts, loadTargets };
 }
@@ -206,9 +208,53 @@ describe("HostStatusService", () => {
     const release = hostSessionStatus.register(1);
     expect(service.get(1)?.status).toBe("online");
     release();
+    expect(service.get(1)?.status).toBe("online");
+  });
+
+  it("keeps a host online for a while after its last login", async () => {
+    const clock = { now: 1_000_000 };
+    const { service } = setup([target(1)], true, {}, clock);
+    active = service;
+    await service.statusesFor("owner", null);
+    await flush();
+
+    service.reportLogin(1, { ok: true });
+    clock.now += LOGIN_FRESH_MS - 1;
+    vi.advanceTimersByTime(75_000);
+    await flush();
+    expect(service.get(1)?.status).toBe("online");
+
+    clock.now += 2;
+    vi.advanceTimersByTime(75_000);
+    await flush();
     expect(service.get(1)?.status).toBe("reachable");
   });
 
+  it("drops an ended session back to reachable once the login is stale", async () => {
+    const clock = { now: 1_000_000 };
+    const { service } = setup([target(1)], true, {}, clock);
+    active = service;
+    service.start();
+    await service.statusesFor("owner", null);
+    await flush();
+
+    const release = hostSessionStatus.register(1);
+    clock.now += LOGIN_FRESH_MS;
+    release();
+    expect(service.get(1)?.status).toBe("reachable");
+  });
+
+  it("shows an offline host as offline even after a login", async () => {
+    const { service } = setup([target(1)], false);
+    active = service;
+    await service.statusesFor("owner", null);
+    await flush();
+    service.reportLogin(1, { ok: true });
+    vi.advanceTimersByTime(75_000);
+    await flush();
+    expect(service.get(1)?.status).toBe("offline");
+  });
+
   it("only checks the requested hosts on the desktop app", async () => {
     const { service, ping } = setup([target(1), target(2)]);
     active = service;

src/backend/tests/hosts/status/host-status.test.ts

@@ -22,11 +22,12 @@ describe("isHostKeyVerificationError", () => {
 
 describe("host availability status", () => {
   it("does not call a TCP-reachable host online before authentication", () => {
-    expect(statusAfterReachabilityCheck(true)).toBe("reachable");
+    expect(statusAfterReachabilityCheck(true, false)).toBe("reachable");
   });
 
-  it("keeps a verified host online across later reachability checks", () => {
-    expect(statusAfterReachabilityCheck(true, "online")).toBe("online");
+  it("keeps a recently verified host online across reachability checks", () => {
+    expect(statusAfterReachabilityCheck(true, true)).toBe("online");
+    expect(statusAfterReachabilityCheck(false, true)).toBe("offline");
   });
 
   it("marks successful authentication online", () => {

src/backend/tests/plugins/ctx-ssh-auth.test.ts

@@ -13,6 +13,7 @@ const h = vi.hoisted(() => ({
   revoked: [] as Array<{ userId: string; except?: string }>,
   trustedCleared: [] as string[],
   policyError: null as Error | null,
+  logins: [] as Array<{ hostId: number; outcome: unknown }>,
 }));
 
 vi.mock("../../utils/logger.js", () => {
@@ -88,6 +89,12 @@ vi.mock("../../hosts/connect/connect-host.js", () => ({
     return { client, jumpClient: null, dispose: vi.fn(() => client.end()) };
   },
 }));
+vi.mock("../../hosts/status/host-status-service.js", () => ({
+  hostStatusService: {
+    reportLogin: (hostId: number, outcome: unknown) =>
+      h.logins.push({ hostId, outcome }),
+  },
+}));
 vi.mock("../../database/repositories/factory.js", () => ({
   createCurrentUserAuthRepository: () => ({
     recordSecondFactor: async (
@@ -141,6 +148,7 @@ beforeEach(() => {
   h.cleared = [];
   h.clearedAll = 0;
   h.pooled = [];
+  h.logins = [];
 });
 
 describe("ctx.ssh", () => {
@@ -184,6 +192,19 @@ describe("ctx.ssh", () => {
     });
   });
 
+  it("reports a login to a saved host's status, never to a plugin's own host", async () => {
+    h.granted = new Set(["ssh:connect", "credentials:use"]);
+    const ssh = createPluginSsh({
+      manifest: manifest(["ssh:connect", "credentials:use"]),
+      bag: new DisposableBag("fixture"),
+      audit: vi.fn(async () => {}),
+    });
+    await ssh.connect(7);
+    await ssh.connect({ id: 9, ip: "h", port: 22, username: "u" } as never);
+    await new Promise((resolve) => setTimeout(resolve, 0));
+    expect(h.logins).toEqual([{ hostId: 7, outcome: { ok: true } }]);
+  });
+
   it("never believes a host object's own userId", async () => {
     h.actor = undefined;
     h.granted = new Set(["ssh:connect", "credentials:use"]);

src/ui/hooks/use-status-color-scheme.ts

@@ -65,10 +65,17 @@ export function getStatusClasses(
     if (variant === "stripe") return "bg-muted-foreground/20 animate-pulse";
     return "border-border/50 text-muted-foreground/50 bg-muted/20 animate-pulse";
   }
+  // Reachable is a faded online, not a warning: the port answers, nobody has
+  // logged in lately.
   if (reachable) {
-    if (variant === "dot") return "bg-amber-400";
-    if (variant === "stripe") return "bg-amber-400/50";
-    return "border-amber-400/40 text-amber-400 bg-amber-400/10";
+    if (scheme === "status") {
+      if (variant === "dot") return "bg-emerald-500/40";
+      if (variant === "stripe") return "bg-emerald-500/30";
+      return "border-emerald-500/30 text-emerald-500/70 bg-emerald-500/5";
+    }
+    if (variant === "dot") return "bg-accent-brand/40";
+    if (variant === "stripe") return "bg-accent-brand/30";
+    return "border-accent-brand/30 text-accent-brand/70 bg-accent-brand/5";
   }
   if (scheme === "status") {
     if (variant === "dot") return online ? "bg-emerald-500" : "bg-red-500";

src/ui/locales/en.json

@@ -349,7 +349,7 @@
     "serverStats": "Host Metrics",
     "status": {
       "available": "Available",
-      "reachable": "Reachable, not authenticated",
+      "reachable": "Up, not signed in lately",
       "offline": "Offline",
       "monitoringDisabled": "Monitoring disabled",
       "label": "Status"

src/ui/tests/hooks/use-status-color-scheme.test.ts

@@ -65,4 +65,16 @@ describe("getStatusClasses", () => {
   it("uses the accent color for the accent scheme", () => {
     expect(getStatusClasses(true, "accent", "dot")).toContain("accent-brand");
   });
+
+  it("draws reachable as a faded online, never a warning color", () => {
+    expect(getStatusClasses("reachable", "accent", "dot")).toBe(
+      "bg-accent-brand/40",
+    );
+    expect(getStatusClasses("reachable", "status", "dot")).toBe(
+      "bg-emerald-500/40",
+    );
+    expect(getStatusClasses("reachable", "status", "badge")).not.toMatch(
+      /amber|yellow|red/,
+    );
+  });
 });