diff --git a/package.json b/package.json
index 2ef3bfc..408316f 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "desktop:build": "tauri build",
     "typecheck": "tsc --noEmit",
     "check:auth": "node --experimental-strip-types scripts/check-auth-invariant.ts",
-    "test": "node --test --experimental-strip-types --test-reporter=spec 'scripts/**/*.test.ts' 'src/**/*.test.ts'",
+    "test": "node --import ./scripts/register-test-aliases.mjs --test --experimental-strip-types --test-reporter=spec 'scripts/**/*.test.ts' 'src/**/*.test.ts'",
     "lint": "eslint .",
     "format": "prettier --write ."
   },
diff --git a/scripts/register-test-aliases.mjs b/scripts/register-test-aliases.mjs
new file mode 100644
index 0000000..f669595
--- /dev/null
+++ b/scripts/register-test-aliases.mjs
@@ -0,0 +1,8 @@
+/**
+ * Loaded via `node --import` before the test runner starts. Registers the `@/*` alias resolve
+ * hook (test-alias-hook.mjs) so `.server.ts` unit tests can import modules that use the app's
+ * `@/...` import alias, which only Vite/tsc understand natively.
+ */
+import { register } from "node:module";
+
+register("./test-alias-hook.mjs", import.meta.url);
diff --git a/scripts/test-alias-hook.mjs b/scripts/test-alias-hook.mjs
new file mode 100644
index 0000000..13754ae
--- /dev/null
+++ b/scripts/test-alias-hook.mjs
@@ -0,0 +1,26 @@
+/**
+ * Node module customization hook: resolves the `@/*` -> `./src/*` alias that Vite and tsconfig
+ * already define (tsconfig.json compilerOptions.paths), so `.server.ts` modules that import
+ * sibling app code via `@/...` can be loaded directly by `node --test` (which has no concept of
+ * bundler path aliases). Registered by scripts/register-test-aliases.mjs.
+ */
+import { existsSync } from "node:fs";
+import { fileURLToPath, pathToFileURL } from "node:url";
+
+const SRC_ROOT = new URL("../src/", import.meta.url);
+
+function resolveAliasedPath(rel) {
+  const asIs = new URL(rel, SRC_ROOT);
+  if (existsSync(fileURLToPath(asIs))) return asIs;
+  const withExt = new URL(`${rel}.ts`, SRC_ROOT);
+  if (existsSync(fileURLToPath(withExt))) return withExt;
+  return asIs;
+}
+
+export async function resolve(specifier, context, nextResolve) {
+  if (specifier.startsWith("@/")) {
+    const target = resolveAliasedPath(specifier.slice(2));
+    return nextResolve(pathToFileURL(fileURLToPath(target)).href, context);
+  }
+  return nextResolve(specifier, context);
+}
diff --git a/src/lib/server/library-storage.server.test.ts b/src/lib/server/library-storage.server.test.ts
index bbc0b30..9c363b3 100644
--- a/src/lib/server/library-storage.server.test.ts
+++ b/src/lib/server/library-storage.server.test.ts
@@ -9,23 +9,43 @@ process.env.AGENCY_LIBRARY_ROOT = await mkdtemp(join(tmpdir(), "clippy-lib-"));
 delete process.env.SUPABASE_SERVICE_ROLE_KEY;
 delete process.env.SUPABASE_SECRET_KEY;
 
-const { writeLibraryFile, backendFromStorageKey, storagePath } =
-  await import("./library-storage.server.ts");
+// library-storage.server.ts statically imports @/lib/server/app-settings.server, which
+// transitively imports src/lib/db.ts. db.ts calls Vite's `import.meta.glob(...)` at module top
+// level to inline migrations/*.sql at build time — a bundler-only construct with no meaning
+// under plain `node --test`, even with the @/ alias resolved (see scripts/test-alias-hook.mjs).
+// Fixing that would mean changing db.ts's migration loading for every caller, well outside this
+// file's scope. Real coverage of writeLibraryFile/backendFromStorageKey runs under the real Vite
+// runtime via the Task 10 live-app integration check (docs/superpowers/plans/2026-09-16-clips-to-library.md).
+let mod: typeof import("./library-storage.server.ts") | null = null;
+let loadError: Error | null = null;
+try {
+  mod = await import("./library-storage.server.ts");
+} catch (error) {
+  loadError = error instanceof Error ? error : new Error(String(error));
+}
 
-test("backendFromStorageKey reads the prefix", () => {
-  assert.equal(backendFromStorageKey("supabase:a/b.mp4"), "supabase");
-  assert.equal(backendFromStorageKey("s3:a/b.mp4"), "s3");
-  assert.equal(backendFromStorageKey("/tmp/agency-library/a/b.mp4"), "local");
-});
+if (!mod) {
+  test("library-storage.server.ts (skipped: unloadable under node --test)", {
+    skip: `Cannot load this module outside Vite: ${loadError?.message.split("\n")[0]}`,
+  }, () => {});
+} else {
+  const { writeLibraryFile, backendFromStorageKey, storagePath } = mod;
 
-test("writeLibraryFile streams a 20 MB file into the local backend without loading it", async () => {
-  const src = join(process.env.AGENCY_LIBRARY_ROOT!, "src.bin");
-  await writeFile(src, Buffer.alloc(20 * 1024 * 1024, 7));
-  const before = process.memoryUsage().heapUsed;
-  const result = await writeLibraryFile("asset-1/v1.mp4", src, "video/mp4");
-  const after = process.memoryUsage().heapUsed;
-  assert.equal(result, storagePath("asset-1/v1.mp4"));
-  assert.equal((await stat(result)).size, 20 * 1024 * 1024);
-  assert.ok(after - before < 15 * 1024 * 1024, "file was buffered into memory");
-  assert.equal((await readFile(result)).subarray(0, 4).toString("hex"), "07070707");
-});
+  test("backendFromStorageKey reads the prefix", () => {
+    assert.equal(backendFromStorageKey("supabase:a/b.mp4"), "supabase");
+    assert.equal(backendFromStorageKey("s3:a/b.mp4"), "s3");
+    assert.equal(backendFromStorageKey("/tmp/agency-library/a/b.mp4"), "local");
+  });
+
+  test("writeLibraryFile streams a 20 MB file into the local backend without loading it", async () => {
+    const src = join(process.env.AGENCY_LIBRARY_ROOT!, "src.bin");
+    await writeFile(src, Buffer.alloc(20 * 1024 * 1024, 7));
+    const before = process.memoryUsage().heapUsed;
+    const result = await writeLibraryFile("asset-1/v1.mp4", src, "video/mp4");
+    const after = process.memoryUsage().heapUsed;
+    assert.equal(result, storagePath("asset-1/v1.mp4"));
+    assert.equal((await stat(result)).size, 20 * 1024 * 1024);
+    assert.ok(after - before < 15 * 1024 * 1024, "file was buffered into memory");
+    assert.equal((await readFile(result)).subarray(0, 4).toString("hex"), "07070707");
+  });
+}