diff --git a/packages/core/package.json b/packages/core/package.json
index f656d494a3..43aeb41617 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -141,6 +141,15 @@
         "import": "./dist/index.js",
         "types": "./dist/index.d.ts"
       },
+      "./package.json": "./package.json",
+      "./beats": {
+        "import": "./dist/beats/index.js",
+        "types": "./dist/beats/index.d.ts"
+      },
+      "./html-attr-safety": {
+        "import": "./dist/utils/htmlAttrSafety.js",
+        "types": "./dist/utils/htmlAttrSafety.d.ts"
+      },
       "./lint": {
         "import": "./dist/lint/index.js",
         "types": "./dist/lint/index.d.ts"
@@ -161,7 +170,15 @@
         "import": "./dist/colorLuts.js",
         "types": "./dist/colorLuts.d.ts"
       },
+      "./storyboard": {
+        "import": "./dist/storyboard/index.js",
+        "types": "./dist/storyboard/index.d.ts"
+      },
       "./runtime": "./dist/hyperframe.runtime.iife.js",
+      "./runtime/clipTree": {
+        "import": "./dist/runtime/clipTree.js",
+        "types": "./dist/runtime/clipTree.d.ts"
+      },
       "./runtime/lottie-readiness": {
         "import": "./dist/lottieReadiness.js",
         "types": "./dist/lottieReadiness.d.ts"
diff --git a/packages/core/src/beats/index.ts b/packages/core/src/beats/index.ts
index 006e8d24de..84c90e289d 100644
--- a/packages/core/src/beats/index.ts
+++ b/packages/core/src/beats/index.ts
@@ -1,2 +1,2 @@
-export * from "./beatDetection";
-export * from "./beatFile";
+export * from "./beatDetection.js";
+export * from "./beatFile.js";
diff --git a/packages/core/tsconfig.json b/packages/core/tsconfig.json
index e1ef706c15..e400fc1acc 100644
--- a/packages/core/tsconfig.json
+++ b/packages/core/tsconfig.json
@@ -13,7 +13,7 @@
     "outDir": "./dist",
     "rootDir": "./src"
   },
-  "files": ["src/runtime/mediaVolumeEnvelope.ts"],
+  "files": ["src/runtime/clipTree.ts", "src/runtime/mediaVolumeEnvelope.ts"],
   "include": ["src/**/*"],
   "exclude": [
     "node_modules",
diff --git a/scripts/verify-packed-manifests.mjs b/scripts/verify-packed-manifests.mjs
index 792f31e80d..fcaf19cec4 100644
--- a/scripts/verify-packed-manifests.mjs
+++ b/scripts/verify-packed-manifests.mjs
@@ -29,6 +29,12 @@ function listWorkspaceRefs(pkg) {
   return refs;
 }
 
+function listMissingPublishedExports(pkg) {
+  if (!pkg.exports || !pkg.publishConfig?.exports) return [];
+
+  return Object.keys(pkg.exports).filter((exportKey) => !(exportKey in pkg.publishConfig.exports));
+}
+
 function parsePackJson(output, workspace) {
   try {
     const parsed = JSON.parse(output);
@@ -44,6 +50,14 @@ function main() {
       readFileSync(join(ROOT, workspace, "package.json"), "utf8"),
     );
     if (sourcePackageJson.private) continue;
+
+    const missingPublishedExports = listMissingPublishedExports(sourcePackageJson);
+    if (missingPublishedExports.length > 0) {
+      throw new Error(
+        `${workspace} publishConfig.exports is missing source exports: ${missingPublishedExports.join(", ")}`,
+      );
+    }
+
     if (listWorkspaceRefs(sourcePackageJson).length === 0) continue;
 
     const packDir = mkdtempSync(join(tmpdir(), "hyperframes-pack-"));