diff --git a/packages/deploy-script-support/src/writeCoreEvalParts.js b/packages/deploy-script-support/src/writeCoreEvalParts.js
index 06d93a3c1bf1..506e59ecc0d6 100644
--- a/packages/deploy-script-support/src/writeCoreEvalParts.js
+++ b/packages/deploy-script-support/src/writeCoreEvalParts.js
@@ -1,9 +1,9 @@
 // @ts-check
 import fs from 'fs';
 import { E } from '@endo/far';
-import { deeplyFulfilled } from '@endo/marshal';
 
 import { createBundles } from '@agoric/internal/src/node/createBundles.js';
+import { deeplyFulfilledObject } from '@agoric/internal';
 import { defangAndTrim, mergePermits, stringify } from './code-gen.js';
 import {
   makeCoreProposalBehavior,
@@ -26,7 +26,10 @@ import {
 /**
  *
  * @param {*} homeP
- * @param {*} endowments
+ * @param {{
+ *   bundleSource: (path: string) => Promise<NodeModule>,
+ *   pathResolve: (path: string) => string,
+ * }} endowments
  * @param {{
  *   getBundlerMaker: () => Promise<import('./getBundlerMaker.js').BundleMaker>,
  *   getBundleSpec: (...args: *) => Promise<import('./externalTypes.js').ManifestBundleRef>,
@@ -69,10 +72,10 @@ export const makeWriteCoreEval = (
       getManifestCall: [manifestGetterName, ...manifestGetterArgs],
     } = coreEval;
 
-    const moduleRecord = await import(pathResolve(sourceSpec));
+    const moduleNamespace = await import(pathResolve(sourceSpec));
 
     // We only care about the manifest, not any restoreRef calls.
-    const { manifest } = await moduleRecord[manifestGetterName](
+    const { manifest } = await moduleNamespace[manifestGetterName](
       harden({ restoreRef: x => `restoreRef:${x}` }),
       ...manifestGetterArgs,
     );
@@ -146,15 +149,15 @@ export const makeWriteCoreEval = (
     };
 
     // Create the eval structure.
-    const evalParts = await deeplyFulfilled(
+    const evalDescriptor = await deeplyFulfilledObject(
       harden(builder({ publishRef, install })),
     );
-    const { sourceSpec, getManifestCall } = evalParts;
+    const { sourceSpec, getManifestCall } = evalDescriptor;
     // console.log('created', { filePrefix, sourceSpec, getManifestCall });
 
     // Extract the top-level permit.
     const { permits: evalPermits, manifest: customManifest } =
-      await mergeEvalPermit(evalParts, defaultPermits);
+      await mergeEvalPermit(evalDescriptor, defaultPermits);
 
     // Get an install
     const manifestBundleRef = await publishRef(install(sourceSpec));