Skills: clean up remote node cache on disconnect

src/gateway/server/ws-connection.ts

@@ -6,6 +6,7 @@ import type { ResolvedGatewayAuth } from "../auth.js";
 import type { GatewayRequestContext, GatewayRequestHandlers } from "../server-methods/types.js";
 import type { GatewayWsClient } from "./ws-types.js";
 import { resolveCanvasHostUrl } from "../../infra/canvas-host-url.js";
+import { removeRemoteNodeInfo } from "../../infra/skills-remote.js";
 import { listSystemPresence, upsertPresence } from "../../infra/system-presence.js";
 import { truncateUtf16Safe } from "../../utils.js";
 import { isWebchatClient } from "../../utils/message-channel.js";
@@ -243,6 +244,7 @@ export function attachGatewayWsConnectionHandler(params: {
         const context = buildRequestContext();
         const nodeId = context.nodeRegistry.unregister(connId);
         if (nodeId) {
+          removeRemoteNodeInfo(nodeId);
           context.nodeUnsubscribeAll(nodeId);
         }
       }

src/infra/skills-remote.test.ts

@@ -0,0 +1,36 @@
+import { randomUUID } from "node:crypto";
+import { describe, expect, it } from "vitest";
+import {
+  getRemoteSkillEligibility,
+  recordRemoteNodeBins,
+  recordRemoteNodeInfo,
+  removeRemoteNodeInfo,
+} from "./skills-remote.js";
+
+describe("skills-remote", () => {
+  it("removes disconnected nodes from remote skill eligibility", () => {
+    const nodeId = `node-${randomUUID()}`;
+    const bin = `bin-${randomUUID()}`;
+    recordRemoteNodeInfo({
+      nodeId,
+      displayName: "Remote Mac",
+      platform: "darwin",
+      commands: ["system.run"],
+    });
+    recordRemoteNodeBins(nodeId, [bin]);
+
+    expect(getRemoteSkillEligibility()?.hasBin(bin)).toBe(true);
+
+    removeRemoteNodeInfo(nodeId);
+
+    expect(getRemoteSkillEligibility()?.hasBin(bin) ?? false).toBe(false);
+  });
+
+  it("supports idempotent remote node removal", () => {
+    const nodeId = `node-${randomUUID()}`;
+    expect(() => {
+      removeRemoteNodeInfo(nodeId);
+      removeRemoteNodeInfo(nodeId);
+    }).not.toThrow();
+  });
+});

src/infra/skills-remote.ts

@@ -168,6 +168,10 @@ export function recordRemoteNodeBins(nodeId: string, bins: string[]) {
   upsertNode({ nodeId, bins });
 }
 
+export function removeRemoteNodeInfo(nodeId: string) {
+  remoteNodes.delete(nodeId);
+}
+
 function listWorkspaceDirs(cfg: OpenClawConfig): string[] {
   const dirs = new Set<string>();
   const list = cfg.agents?.list;