diff --git a/.github/workflows/catalog-e2e.yml b/.github/workflows/catalog-e2e.yml
index dd5f0ba6..f3fec3f0 100644
--- a/.github/workflows/catalog-e2e.yml
+++ b/.github/workflows/catalog-e2e.yml
@@ -23,8 +23,10 @@ jobs:
       - uses: dtolnay/rust-toolchain@e97e2d8cc328f1b50210efc529dca0028893a2d9 # v1
         with:
           toolchain: stable
+      - name: Fetch locked dependencies before offline test
+        run: cargo fetch --locked
       - name: Run offline fixtures with network disabled
-        run: cargo test --test test_catalog_integration --offline -- --nocapture
+        run: cargo test --test test_catalog_integration --locked --offline -- --nocapture
 
   catalog-installation:
     name: Verify catalog skill installation
@@ -57,8 +59,9 @@ jobs:
       - name: Run catalog installation E2E
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          RUN_E2E: 1
         run: |
-          cargo test --test test_catalog_integration -- --ignored --nocapture
+          cargo test --test test_catalog_integration --locked -- --ignored --nocapture
 
   remote-refresh:
     name: Explicit opt-in pinned-commit remote E2E
diff --git a/npm/agentsync/tsconfig.json b/npm/agentsync/tsconfig.json
index 5a3b298b..c54b3465 100644
--- a/npm/agentsync/tsconfig.json
+++ b/npm/agentsync/tsconfig.json
@@ -1,7 +1,7 @@
 {
 	"compilerOptions": {
 		"target": "ES2022",
-		"module": "commonjs",
+		"module": "Node16",
 		"lib": ["ES2022"],
 		"outDir": "./lib",
 		"rootDir": "./src",
@@ -14,7 +14,7 @@
 		"declaration": true,
 		"declarationMap": true,
 		"sourceMap": true,
-		"moduleResolution": "node",
+		"moduleResolution": "Node16",
 		"ignoreDeprecations": "6.0"
 	},
 	"include": ["src/**/*"],