test: keep command registry native overrides hermetic

extensions/discord/src/shared.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from "vitest";
+import { createDiscordPluginBase } from "./shared.js";
+
+describe("createDiscordPluginBase", () => {
+  it("owns Discord native command name overrides", () => {
+    const plugin = createDiscordPluginBase({ setup: {} as never });
+
+    expect(
+      plugin.commands?.resolveNativeCommandName?.({
+        commandKey: "tts",
+        defaultName: "tts",
+      }),
+    ).toBe("voice");
+    expect(
+      plugin.commands?.resolveNativeCommandName?.({
+        commandKey: "status",
+        defaultName: "status",
+      }),
+    ).toBe("status");
+  });
+});

extensions/slack/src/shared.test.ts

@@ -1,5 +1,27 @@
 import { describe, expect, it } from "vitest";
-import { setSlackChannelAllowlist } from "./shared.js";
+import { createSlackPluginBase, setSlackChannelAllowlist } from "./shared.js";
+
+describe("createSlackPluginBase", () => {
+  it("owns Slack native command name overrides", () => {
+    const plugin = createSlackPluginBase({
+      setup: {} as never,
+      setupWizard: {} as never,
+    });
+
+    expect(
+      plugin.commands?.resolveNativeCommandName?.({
+        commandKey: "status",
+        defaultName: "status",
+      }),
+    ).toBe("agentstatus");
+    expect(
+      plugin.commands?.resolveNativeCommandName?.({
+        commandKey: "tts",
+        defaultName: "tts",
+      }),
+    ).toBe("tts");
+  });
+});
 
 describe("setSlackChannelAllowlist", () => {
   it("writes canonical enabled entries for setup-generated channel allowlists", () => {

src/auto-reply/commands-registry.test.ts

@@ -19,6 +19,47 @@ import {
 } from "./commands-registry.js";
 import type { ChatCommandDefinition } from "./commands-registry.types.js";
 
+type NativeCommandNameResolver = (params: { commandKey: string; defaultName: string }) => string;
+
+function installNativeCommandOverridePlugin(params: {
+  id: "discord" | "slack";
+  resolveNativeCommandName: NativeCommandNameResolver;
+}) {
+  setActivePluginRegistry(
+    createTestRegistry([
+      {
+        pluginId: params.id,
+        plugin: {
+          ...createChannelTestPluginBase({
+            id: params.id,
+            capabilities: { nativeCommands: true, chatTypes: ["direct"] },
+          }),
+          commands: {
+            resolveNativeCommandName: params.resolveNativeCommandName,
+          },
+        },
+        source: "test",
+      },
+    ]),
+  );
+}
+
+function installDiscordNativeCommandOverrides() {
+  installNativeCommandOverridePlugin({
+    id: "discord",
+    resolveNativeCommandName: ({ commandKey, defaultName }) =>
+      commandKey === "tts" ? "voice" : defaultName,
+  });
+}
+
+function installSlackNativeCommandOverrides() {
+  installNativeCommandOverridePlugin({
+    id: "slack",
+    resolveNativeCommandName: ({ commandKey, defaultName }) =>
+      commandKey === "status" ? "agentstatus" : defaultName,
+  });
+}
+
 beforeEach(() => {
   vi.doUnmock("../channels/plugins/index.js");
   setActivePluginRegistry(createTestRegistry([]));
@@ -112,6 +153,7 @@ describe("commands registry", () => {
   });
 
   it("applies discord native command overrides", () => {
+    installDiscordNativeCommandOverrides();
     const native = listNativeCommandSpecsForConfig(
       { commands: { native: true } },
       { provider: "discord" },
@@ -122,6 +164,7 @@ describe("commands registry", () => {
   });
 
   it("applies slack native command overrides", () => {
+    installSlackNativeCommandOverrides();
     const native = listNativeCommandSpecsForConfig(
       { commands: { native: true } },
       { provider: "slack" },
@@ -132,6 +175,7 @@ describe("commands registry", () => {
   });
 
   it("keeps discord native command specs within slash-command limits", () => {
+    installDiscordNativeCommandOverrides();
     const cfg = { commands: { native: true } };
     const native = listNativeCommandSpecsForConfig(cfg, { provider: "discord" });
     for (const spec of native) {