fix(agents): land #20840 cross-channel message-tool actions from @altaywtf

Include scoped cross-channel action/description behavior, regression tests, changelog note, and make Ollama discovery tests URL-scoped to avoid env-dependent fetch interference.

Co-authored-by: Altay <altay@hey.com>

src/agents/tools/message-tool.test.ts

@@ -171,7 +171,8 @@ describe("message tool schema scoping", () => {
     expect(buttonItemProps.style).toBeDefined();
     expect(actionEnum).toContain("send");
     expect(actionEnum).toContain("react");
-    expect(actionEnum).not.toContain("poll");
+    // Other channels' actions are included so isolated/cron agents can use them
+    expect(actionEnum).toContain("poll");
   });
 
   it("shows discord components when scoped to discord", () => {
@@ -193,11 +194,16 @@ describe("message tool schema scoping", () => {
     expect(properties.buttons).toBeUndefined();
     expect(actionEnum).toContain("send");
     expect(actionEnum).toContain("poll");
-    expect(actionEnum).not.toContain("react");
+    // Other channels' actions are included so isolated/cron agents can use them
+    expect(actionEnum).toContain("react");
   });
 });
 
 describe("message tool description", () => {
+  afterEach(() => {
+    setActivePluginRegistry(createTestRegistry([]));
+  });
+
   const bluebubblesPlugin: ChannelPlugin = {
     id: "bluebubbles",
     meta: {
@@ -248,8 +254,78 @@ describe("message tool description", () => {
     expect(tool.description).not.toContain("addParticipant");
     expect(tool.description).not.toContain("removeParticipant");
     expect(tool.description).not.toContain("leaveGroup");
+  });
 
-    setActivePluginRegistry(createTestRegistry([]));
+  it("includes other configured channels when currentChannel is set", () => {
+    const signalPlugin: ChannelPlugin = {
+      id: "signal",
+      meta: {
+        id: "signal",
+        label: "Signal",
+        selectionLabel: "Signal",
+        docsPath: "/channels/signal",
+        blurb: "Signal test plugin.",
+      },
+      capabilities: { chatTypes: ["direct", "group"], media: true },
+      config: {
+        listAccountIds: () => ["default"],
+        resolveAccount: () => ({}),
+      },
+      actions: {
+        listActions: () => ["send", "react"] as const,
+      },
+    };
+
+    const telegramPluginFull: ChannelPlugin = {
+      id: "telegram",
+      meta: {
+        id: "telegram",
+        label: "Telegram",
+        selectionLabel: "Telegram",
+        docsPath: "/channels/telegram",
+        blurb: "Telegram test plugin.",
+      },
+      capabilities: { chatTypes: ["direct", "group"], media: true },
+      config: {
+        listAccountIds: () => ["default"],
+        resolveAccount: () => ({}),
+      },
+      actions: {
+        listActions: () => ["send", "react", "delete", "edit", "topic-create"] as const,
+      },
+    };
+
+    setActivePluginRegistry(
+      createTestRegistry([
+        { pluginId: "signal", source: "test", plugin: signalPlugin },
+        { pluginId: "telegram", source: "test", plugin: telegramPluginFull },
+      ]),
+    );
+
+    const tool = createMessageTool({
+      config: {} as never,
+      currentChannelProvider: "signal",
+    });
+
+    // Current channel actions are listed
+    expect(tool.description).toContain("Current channel (signal) supports: react, send.");
+    // Other configured channels are also listed
+    expect(tool.description).toContain("Other configured channels:");
+    expect(tool.description).toContain("telegram (delete, edit, react, send, topic-create)");
+  });
+
+  it("does not include 'Other configured channels' when only one channel is configured", () => {
+    setActivePluginRegistry(
+      createTestRegistry([{ pluginId: "bluebubbles", source: "test", plugin: bluebubblesPlugin }]),
+    );
+
+    const tool = createMessageTool({
+      config: {} as never,
+      currentChannelProvider: "bluebubbles",
+    });
+
+    expect(tool.description).toContain("Current channel (bluebubbles) supports:");
+    expect(tool.description).not.toContain("Other configured channels");
   });
 });
 

src/agents/tools/message-tool.ts

@@ -1,5 +1,6 @@
 import { Type } from "@sinclair/typebox";
 import { BLUEBUBBLES_GROUP_ACTIONS } from "../../channels/plugins/bluebubbles-actions.js";
+import { listChannelPlugins } from "../../channels/plugins/index.js";
 import {
   listChannelMessageActions,
   supportsChannelMessageButtons,
@@ -460,8 +461,18 @@ function resolveMessageToolSchemaActions(params: {
       channel: currentChannel,
       currentChannelId: params.currentChannelId,
     });
-    const withSend = new Set<string>(["send", ...scopedActions]);
-    return Array.from(withSend);
+    const allActions = new Set<string>(["send", ...scopedActions]);
+    // Include actions from other configured channels so isolated/cron agents
+    // can invoke cross-channel actions without validation errors.
+    for (const plugin of listChannelPlugins()) {
+      if (plugin.id === currentChannel) {
+        continue;
+      }
+      for (const action of listChannelSupportedActions({ cfg: params.cfg, channel: plugin.id })) {
+        allActions.add(action);
+      }
+    }
+    return Array.from(allActions);
   }
   const actions = listChannelMessageActions(params.cfg);
   return actions.length > 0 ? actions : ["send"];
@@ -542,7 +553,7 @@ function buildMessageToolDescription(options?: {
 }): string {
   const baseDescription = "Send, delete, and manage messages via channel plugins.";
 
-  // If we have a current channel, show only its supported actions
+  // If we have a current channel, show its actions and list other configured channels
   if (options?.currentChannel) {
     const channelActions = filterActionsForContext({
       actions: listChannelSupportedActions({
@@ -556,7 +567,25 @@ function buildMessageToolDescription(options?: {
       // Always include "send" as a base action
       const allActions = new Set(["send", ...channelActions]);
       const actionList = Array.from(allActions).toSorted().join(", ");
-      return `${baseDescription} Current channel (${options.currentChannel}) supports: ${actionList}.`;
+      let desc = `${baseDescription} Current channel (${options.currentChannel}) supports: ${actionList}.`;
+
+      // Include other configured channels so cron/isolated agents can discover them
+      const otherChannels: string[] = [];
+      for (const plugin of listChannelPlugins()) {
+        if (plugin.id === options.currentChannel) {
+          continue;
+        }
+        const actions = listChannelSupportedActions({ cfg: options.config, channel: plugin.id });
+        if (actions.length > 0) {
+          const all = new Set(["send", ...actions]);
+          otherChannels.push(`${plugin.id} (${Array.from(all).toSorted().join(", ")})`);
+        }
+      }
+      if (otherChannels.length > 0) {
+        desc += ` Other configured channels: ${otherChannels.join(", ")}.`;
+      }
+
+      return desc;
     }
   }