diff --git a/test/helpers/channels/inbound-contract.discord.ts b/test/helpers/channels/inbound-contract.discord.ts
index 472d5de7480..ada975492b5 100644
--- a/test/helpers/channels/inbound-contract.discord.ts
+++ b/test/helpers/channels/inbound-contract.discord.ts
@@ -1,27 +1,27 @@
 import { it } from "vitest";
 import { expectChannelInboundContextContract } from "../../../src/channels/plugins/contracts/test-helpers.js";
-import { loadBundledPluginTestApiSync } from "../../../src/test-utils/bundled-plugin-public-surface.js";
+import { resolveRelativeBundledPluginPublicModuleId } from "../../../src/test-utils/bundled-plugin-public-surface.js";
 
 type BuildFinalizedDiscordDirectInboundContext =
   () => import("../../../src/auto-reply/templating.js").MsgContext;
 
-let buildFinalizedDiscordDirectInboundContextCache:
-  | BuildFinalizedDiscordDirectInboundContext
-  | undefined;
+const discordInboundContextHarnessModuleId = resolveRelativeBundledPluginPublicModuleId({
+  fromModuleUrl: import.meta.url,
+  pluginId: "discord",
+  artifactBasename: "src/monitor/inbound-context.test-helpers.js",
+});
 
-function getBuildFinalizedDiscordDirectInboundContext(): BuildFinalizedDiscordDirectInboundContext {
-  if (!buildFinalizedDiscordDirectInboundContextCache) {
-    ({ buildFinalizedDiscordDirectInboundContext: buildFinalizedDiscordDirectInboundContextCache } =
-      loadBundledPluginTestApiSync<{
-        buildFinalizedDiscordDirectInboundContext: BuildFinalizedDiscordDirectInboundContext;
-      }>("discord"));
-  }
-  return buildFinalizedDiscordDirectInboundContextCache;
+async function getBuildFinalizedDiscordDirectInboundContext(): Promise<BuildFinalizedDiscordDirectInboundContext> {
+  const module = (await import(discordInboundContextHarnessModuleId)) as {
+    buildFinalizedDiscordDirectInboundContext: BuildFinalizedDiscordDirectInboundContext;
+  };
+  return module.buildFinalizedDiscordDirectInboundContext;
 }
 
 export function installDiscordInboundContractSuite() {
-  it("keeps inbound context finalized", () => {
-    const ctx = getBuildFinalizedDiscordDirectInboundContext()();
+  it("keeps inbound context finalized", async () => {
+    const buildContext = await getBuildFinalizedDiscordDirectInboundContext();
+    const ctx = buildContext();
 
     expectChannelInboundContextContract(ctx);
   });