diff --git a/stack/pi-native.sha256 b/stack/pi-native.sha256
index a7d4cb3668..653166425c 100644
--- a/stack/pi-native.sha256
+++ b/stack/pi-native.sha256
@@ -57,4 +57,4 @@ d64e8c05c7932d377034820b1db0df45612afe64885c0765f8f348a12e1bc955  dist/core/skil
 0391543cf703a93a0163b37b3ccebe53e0f12bff6f6162b86d56fb017fe49011  dist/core/system-prompt.js
 # agent-comms-native-stock-v1 @earendil-works/pi-coding-agent@0.85.1
 # agent-comms-native-tree-v1 17edf8badd73bafccf592b651b5a9c0f71b2b05b89db470d1042d3ccb544a0b9
-# agent-comms-native-inputs-v1 eb243f7053a9983fd735cb0d98c6c89ef674052403ef5ea3a41bb3426406df17
+# agent-comms-native-inputs-v1 98ae7ef97dd2811949ed3877038887d95c043f8b078331746bc1f8587645bcbc
diff --git a/stack/test-native-import-rpc.py b/stack/test-native-import-rpc.py
index 2e0f043f2c..54b616da63 100755
--- a/stack/test-native-import-rpc.py
+++ b/stack/test-native-import-rpc.py
@@ -51,7 +51,7 @@ def ancestor_probe(
     package: Path, root: Path, env: dict[str, str], deny: Callable[[], None]
 ) -> dict:
     """Admit real PR77, then reach a committed ws entry's optional ancestor require."""
-    assert package.is_relative_to(root), "Owned fixture package required"
+    assert package.resolve().is_relative_to(root.resolve()), "Owned fixture package required"
     ancestor = package.parent.parent / "bufferutil"
     ancestor.mkdir(mode=0o700)  # Exclusive: never replace an existing dependency.
     marker = root / "ancestor-executed"
@@ -340,6 +340,9 @@ def main(launch: VerifiedNativePackage, root: Path) -> None:
     with tempfile.TemporaryDirectory(prefix="native-import-rpc-") as directory:
         root = Path(directory)
         prepared = pinned_native_package()
-        native_root = root / prepared.parents[2].name
-        native_root.symlink_to(prepared.parents[2], target_is_directory=True)
-        main(VerifiedNativePackage.qualify(native_root / PACKAGE_LAYOUT), root)
+        # Node resolves modules by realpath, so a link would put every ancestor of the
+        # probed ws entry back in the shared store; only an owned copy has owned ancestors.
+        package = root / prepared.parents[2].name / PACKAGE_LAYOUT
+        package.parent.mkdir(parents=True, mode=0o700)
+        shutil.copytree(prepared, package)
+        main(VerifiedNativePackage.qualify(package), root)