diff --git a/src/presentation/routes/app-router.tsx b/src/presentation/routes/app-router.tsx
index b9b8d27..887b5e3 100644
--- a/src/presentation/routes/app-router.tsx
+++ b/src/presentation/routes/app-router.tsx
@@ -42,7 +42,6 @@ import {
   buildRouteUrlFromDefinition,
   parseRouteInputFromContract,
   type RouteCodecRegistry,
-  type RouteId,
 } from "./route-codecs.ts";
 import {
   ROUTE_CODECS,
@@ -142,12 +141,12 @@ function RouteLifecycle({
   return null;
 }
 
-function CanonicalRouteRedirect({
+function CanonicalRouteRedirect<RouteIdValue extends string>({
   input,
   definition,
   codecs,
 }: {
-  input: ParsedRouteInput;
+  input: ParsedRouteInput<RouteIdValue>;
   definition: RouteDefinition;
   codecs: RouteCodecRegistry;
 }) {
@@ -251,14 +250,14 @@ function ProtectedRoute({
   );
 }
 
-function RegisteredRoute({
+function RegisteredRoute<RouteIdValue extends string>({
   routeId,
   buildId,
   definition,
   runtime,
   codecs,
 }: {
-  routeId: RouteId;
+  routeId: RouteIdValue;
   buildId: string;
   definition: RouteDefinition;
   runtime: GroupedRouteRuntimeDefinition;
@@ -276,7 +275,7 @@ function RegisteredRoute({
     search,
   );
   if (!parsed.success) return <InvalidRouteSurface code={parsed.code} />;
-  const routeInput = parsed.data as ParsedRouteInput;
+  const routeInput = parsed.data;
   const RuntimeComponent = runtime.Component;
 
   const content = (
@@ -334,7 +333,7 @@ export function createGroupedRouteObjects(
   runtime: GroupedRouteRuntime,
   layouts: GroupedRouteLayouts,
   buildId: string,
-  codecs: RouteCodecRegistry = ROUTE_CODECS,
+  codecs: RouteCodecRegistry,
 ): RouteObject[] {
   for (const routeId of Object.keys(runtime)) {
     if (!registry[routeId]) {
@@ -347,7 +346,7 @@ export function createGroupedRouteObjects(
     STUDIO: [],
   };
   for (const definition of Object.values(registry)) {
-    const routeId = definition.routeId as RouteId;
+    const routeId = definition.routeId;
     const routeRuntime = runtime[definition.routeId];
     if (!routeRuntime) {
       throw new TypeError(`Missing route runtime: ${definition.routeId}`);
@@ -411,6 +410,7 @@ export function AppRouter({
             STUDIO: <Outlet />,
           },
           buildId,
+          ROUTE_CODECS,
         ),
         { basename },
       ),
diff --git a/src/presentation/routes/route-codecs.ts b/src/presentation/routes/route-codecs.ts
index 9c2eb69..77d263d 100644
--- a/src/presentation/routes/route-codecs.ts
+++ b/src/presentation/routes/route-codecs.ts
@@ -24,19 +24,9 @@ type RouteCodec = Readonly<{
 }>;
 
 export type RouteCodecRegistry = Readonly<Record<string, RouteCodec>>;
-export type ContractRouteInputResult =
-  | Readonly<{
-      success: true;
-      data: Readonly<{
-        routeId: string;
-        params: Readonly<Record<string, unknown>>;
-        search: Readonly<Record<string, unknown>>;
-      }>;
-    }>
-  | Readonly<{
-      success: false;
-      code: "ROUTE_PARAMS_INVALID" | "ROUTE_SEARCH_INVALID";
-    }>;
+export type ContractRouteInputResult<
+  RouteIdValue extends string = string,
+> = RouteInputResult<RouteIdValue>;
 
 function codecById(codecId: string, codecs: RouteCodecRegistry = ROUTE_CODECS) {
   const codec = codecs[codecId];
@@ -55,16 +45,16 @@ export function parseRouteInput(
     ROUTE_CODECS,
     rawParams,
     rawSearch,
-  ) as RouteInputResult;
+  );
 }
 
-export function parseRouteInputFromContract(
-  routeId: string,
+export function parseRouteInputFromContract<RouteIdValue extends string>(
+  routeId: RouteIdValue,
   definition: Pick<RouteDefinition, "paramsSchema" | "searchSchema">,
   codecs: RouteCodecRegistry,
   rawParams: Readonly<Record<string, string | undefined>>,
   rawSearch: URLSearchParams,
-): ContractRouteInputResult {
+): ContractRouteInputResult<RouteIdValue> {
   const params = codecById(
     definition.paramsSchema ?? "none",
     codecs,
diff --git a/src/presentation/routes/route-contract.ts b/src/presentation/routes/route-contract.ts
index c97e438..9397265 100644
--- a/src/presentation/routes/route-contract.ts
+++ b/src/presentation/routes/route-contract.ts
@@ -2,14 +2,14 @@ import { ROUTE_RUNTIME_CONTRACT } from "../../features/installed-feature-contrac
 
 export type RouteId = keyof typeof ROUTE_RUNTIME_CONTRACT;
 
-export type ParsedRouteInput = Readonly<{
-  routeId: RouteId;
+export type ParsedRouteInput<RouteIdValue extends string = RouteId> = Readonly<{
+  routeId: RouteIdValue;
   params: Readonly<Record<string, unknown>>;
   search: Readonly<Record<string, unknown>>;
 }>;
 
-export type RouteInputResult =
-  | Readonly<{ success: true; data: ParsedRouteInput }>
+export type RouteInputResult<RouteIdValue extends string = RouteId> =
+  | Readonly<{ success: true; data: ParsedRouteInput<RouteIdValue> }>
   | Readonly<{
       success: false;
       code: "ROUTE_PARAMS_INVALID" | "ROUTE_SEARCH_INVALID";
diff --git a/src/presentation/routes/route-input.tsx b/src/presentation/routes/route-input.tsx
index c61ed9a..8d87744 100644
--- a/src/presentation/routes/route-input.tsx
+++ b/src/presentation/routes/route-input.tsx
@@ -4,15 +4,15 @@ import {
   useContext,
 } from "react";
 
-import type { ParsedRouteInput } from "./route-contract.ts";
+import type { ParsedRouteInput, RouteId } from "./route-contract.ts";
 
-const RouteInputContext = createContext<ParsedRouteInput | null>(null);
+const RouteInputContext = createContext<ParsedRouteInput<string> | null>(null);
 
-export function RouteInputProvider({
+export function RouteInputProvider<RouteIdValue extends string>({
   input,
   children,
 }: Readonly<{
-  input: ParsedRouteInput;
+  input: ParsedRouteInput<RouteIdValue>;
   children: ReactNode;
 }>) {
   return (
@@ -22,8 +22,10 @@ export function RouteInputProvider({
   );
 }
 
-export function useRouteInput(): ParsedRouteInput {
+export function useRouteInput<
+  RouteIdValue extends string = RouteId,
+>(): ParsedRouteInput<RouteIdValue> {
   const input = useContext(RouteInputContext);
   if (!input) throw new Error("Registered route input is required");
-  return input;
+  return input as ParsedRouteInput<RouteIdValue>;
 }
diff --git a/tests/component/router.test.tsx b/tests/component/router.test.tsx
index 95b41b2..a33bbd3 100644
--- a/tests/component/router.test.tsx
+++ b/tests/component/router.test.tsx
@@ -2,7 +2,8 @@
 
 import { render, screen, waitFor } from "@testing-library/react";
 import userEvent from "@testing-library/user-event";
-import { describe, expect, it } from "vitest";
+import { describe, expect, expectTypeOf, it } from "vitest";
+import { z } from "zod";
 import {
   createMemoryRouter,
   matchRoutes,
@@ -18,7 +19,10 @@ import {
 } from "../../src/presentation/routes/app-router.tsx";
 import { createTestApplication } from "../helpers/create-test-application.ts";
 import { ROUTE_REGISTRY } from "../../src/features/installed-feature-contracts.ts";
-import { ROUTE_RUNTIME } from "../../src/features/installed-feature-runtimes.tsx";
+import {
+  ROUTE_CODECS,
+  ROUTE_RUNTIME,
+} from "../../src/features/installed-feature-runtimes.tsx";
 import { LocaleProvider } from "../../src/presentation/i18n/index.ts";
 import { SessionProvider } from "../../src/presentation/providers/session-provider.tsx";
 import { ThemeProvider } from "../../src/presentation/providers/theme-provider.tsx";
@@ -29,6 +33,72 @@ function StudioFallbackFixture() {
   return <h1>{String(input.params["*"])}</h1>;
 }
 
+const reviewFixtureCodecs = Object.freeze({
+  ReviewFixtureParams: z
+    .object({ reviewId: z.string().min(1) })
+    .strict(),
+  ReviewFixtureSearch: z
+    .object({
+      filter: z.preprocess(
+        (value) => (Array.isArray(value) ? value[0] : value),
+        z.string().trim().min(1).optional(),
+      ),
+    })
+    .strip(),
+});
+
+const groupedFixtureCodecs = Object.freeze({
+  none: ROUTE_CODECS.none,
+  NotFoundSplat: ROUTE_CODECS.NotFoundSplat,
+});
+
+const reviewFixtureRegistry = Object.freeze({
+  REVIEW_FIXTURE: Object.freeze({
+    ...ROUTE_REGISTRY.APP_HOME,
+    routeId: "REVIEW_FIXTURE",
+    path: "/review/:reviewId",
+    paramsSchema: "ReviewFixtureParams",
+    searchSchema: "ReviewFixtureSearch",
+  }),
+});
+
+function ReviewRouteFixture() {
+  const input = useRouteInput<"REVIEW_FIXTURE">();
+  expectTypeOf(input.routeId).toEqualTypeOf<"REVIEW_FIXTURE">();
+  return (
+    <section>
+      <h1>{input.routeId}</h1>
+      <p data-testid="review-param">{String(input.params.reviewId)}</p>
+      <p data-testid="review-search">{JSON.stringify(input.search)}</p>
+    </section>
+  );
+}
+
+const reviewFixtureRuntime = Object.freeze({
+  REVIEW_FIXTURE: Object.freeze({
+    moduleId: "review-fixture",
+    Component: ReviewRouteFixture,
+  }),
+});
+
+function compileTimeGroupedRouteContract() {
+  // @ts-expect-error A grouped route composition must provide its codec registry.
+  createGroupedRouteObjects(
+    reviewFixtureRegistry,
+    reviewFixtureRuntime,
+    { PUBLIC: <Outlet />, STUDIO: <Outlet /> },
+    "type-test-build",
+  );
+  return createGroupedRouteObjects(
+    reviewFixtureRegistry,
+    reviewFixtureRuntime,
+    { PUBLIC: <Outlet />, STUDIO: <Outlet /> },
+    "type-test-build",
+    reviewFixtureCodecs,
+  );
+}
+void compileTimeGroupedRouteContract;
+
 function renderRouter() {
   return render(
     <ApplicationProvider
@@ -42,6 +112,51 @@ function renderRouter() {
 }
 
 describe("generic application router", () => {
+  it("renders and canonicalizes an isolated non-installed route codec contract", async () => {
+    expect(ROUTE_REGISTRY).not.toHaveProperty("REVIEW_FIXTURE");
+    expect(ROUTE_CODECS).not.toHaveProperty("ReviewFixtureParams");
+    expect(ROUTE_CODECS).not.toHaveProperty("ReviewFixtureSearch");
+
+    const routes = createGroupedRouteObjects(
+      reviewFixtureRegistry,
+      reviewFixtureRuntime,
+      { PUBLIC: <Outlet />, STUDIO: <Outlet /> },
+      "test-build",
+      reviewFixtureCodecs,
+    );
+    const router = createMemoryRouter(routes, {
+      initialEntries: [
+        "/review/non-empty?filter=%20first%20&filter=second&unknown=drop",
+      ],
+    });
+
+    render(
+      <ApplicationProvider application={createTestApplication()}>
+        <LocaleProvider>
+          <ThemeProvider>
+            <SessionProvider>
+              <RouterProvider router={router} />
+            </SessionProvider>
+          </ThemeProvider>
+        </LocaleProvider>
+      </ApplicationProvider>,
+    );
+
+    expect(
+      await screen.findByRole("heading", { name: "REVIEW_FIXTURE" }),
+    ).toBeVisible();
+    expect(screen.getByTestId("review-param")).toHaveTextContent("non-empty");
+    expect(screen.getByTestId("review-search")).toHaveTextContent(
+      '{"filter":"first"}',
+    );
+    await waitFor(() =>
+      expect(router.state.location).toMatchObject({
+        pathname: "/review/non-empty",
+        search: "?filter=first",
+      }),
+    );
+  });
+
   it("assembles generic Public and Studio parents with Studio catch-all precedence", () => {
     const registry = {
       APP_HOME: ROUTE_REGISTRY.APP_HOME,
@@ -66,6 +181,7 @@ describe("generic application router", () => {
         STUDIO: <div data-layout="studio" />,
       },
       "test-build",
+      groupedFixtureCodecs,
     );
 
     expect(routes.map((route) => route.id)).toEqual([
@@ -87,6 +203,7 @@ describe("generic application router", () => {
         STUDIO: <div data-layout="studio" />,
       },
       "test-build",
+      groupedFixtureCodecs,
     );
     expect(installedRoutes[1]?.children?.at(-1)?.id).toBe("NOT_FOUND");
   });
@@ -101,6 +218,7 @@ describe("generic application router", () => {
           STUDIO: <div data-layout="studio" />,
         },
         "test-build",
+        groupedFixtureCodecs,
       ),
     ).toThrow("Missing route runtime: APP_HOME");
   });
@@ -130,6 +248,7 @@ describe("generic application router", () => {
         ),
       },
       "test-build",
+      groupedFixtureCodecs,
     );
     const router = createMemoryRouter(routes, {
       initialEntries: ["/studio/unknown/path"],
@@ -175,6 +294,7 @@ describe("generic application router", () => {
         STUDIO: <Outlet />,
       },
       "test-build",
+      groupedFixtureCodecs,
     );
     const router = createMemoryRouter(routes, {
       initialEntries: ["/private-fixture"],