diff --git a/packages/plugin-rsc/examples/use-cache-callable/callable-cache-plugin.ts b/packages/plugin-rsc/examples/use-cache-callable/callable-cache-plugin.ts
index 6d1689238..5825c3a5a 100644
--- a/packages/plugin-rsc/examples/use-cache-callable/callable-cache-plugin.ts
+++ b/packages/plugin-rsc/examples/use-cache-callable/callable-cache-plugin.ts
@@ -60,7 +60,9 @@ export function callableCachePlugin(): Plugin {
               runtime: (value, name, meta) =>
                 runtime(value, name, getCacheWrapperOptions(meta)),
               encode: (value) => `$$encryptCacheCaptures(${value})`,
-              decode: (value) => `await $$decryptCacheCaptures(${value})`,
+              // The cache runtime replaces the envelope with decoded captures
+              // before invoking this private implementation.
+              decode: (value) => value,
             })
         if (!result.output.hasChanged()) {
           manager.serverReferences.deleteClaim(pluginName, id)
@@ -72,7 +74,7 @@ export function callableCachePlugin(): Plugin {
           exportNames: 'names' in result ? result.names : result.exportNames,
         })
         result.output.prepend(
-          `import $$cacheWrapper, { encryptCacheCaptures as $$encryptCacheCaptures, decryptCacheCaptures as $$decryptCacheCaptures } from "/src/framework/use-cache-runtime";\n` +
+          `import $$cacheWrapper, { encryptCacheCaptures as $$encryptCacheCaptures } from "/src/framework/use-cache-runtime";\n` +
             `import * as $$ReactServer from "@vitejs/plugin-rsc/react/rsc/server";\n`,
         )
         return {
diff --git a/packages/plugin-rsc/examples/use-cache-callable/src/framework/use-cache-runtime.tsx b/packages/plugin-rsc/examples/use-cache-callable/src/framework/use-cache-runtime.tsx
index 001f136cd..70a929062 100644
--- a/packages/plugin-rsc/examples/use-cache-callable/src/framework/use-cache-runtime.tsx
+++ b/packages/plugin-rsc/examples/use-cache-callable/src/framework/use-cache-runtime.tsx
@@ -64,24 +64,18 @@ export default function cacheWrapper(
     // "use cache static shell + dynamic children props" pattern.
     // cf. https://nextjs.org/docs/app/api-reference/directives/use-cache#non-serializable-arguments
     const clientTemporaryReferences = createClientTemporaryReferenceSet()
-    const encodedArguments = await encodeReply(admittedArgs, {
-      temporaryReferences: clientTemporaryReferences,
-    })
-    let encodedCacheArguments = encodedArguments
-    // Re-encode decrypted captures so cache identity reflects their logical values
-    // rather than the randomized ciphertext used by the transport arguments.
+    let executionArguments = admittedArgs
     if (captureEnvelope) {
-      // TODO: On a cache miss, the hoister-generated implementation decrypts the
-      // original envelope again. A tighter adapter could reuse these captures.
-      const cacheArguments = [
-        ...(await decryptCacheCaptures(captureEnvelope)),
-        ...admittedArgs.slice(1),
-      ]
-      encodedCacheArguments = await encodeReply(cacheArguments, {
-        temporaryReferences: createClientTemporaryReferenceSet(),
-      })
+      // Decrypt in the framework runtime so cache identity and execution share
+      // these values; the transformed implementation only destructures the array.
+      const captures = await decryptCacheCaptures(captureEnvelope)
+      const invocationArguments = admittedArgs.slice(1)
+      executionArguments = [captures, ...invocationArguments]
     }
-    const serializedCacheKey = await replyToCacheKey(encodedCacheArguments)
+    const encodedArguments = await encodeReply(executionArguments, {
+      temporaryReferences: clientTemporaryReferences,
+    })
+    const serializedCacheKey = await replyToCacheKey(encodedArguments)
 
     // cache `fn` result as stream
     // (cache value is promise so that it dedupes concurrent async calls)
@@ -180,7 +174,7 @@ export function encryptCacheCaptures(
   }
 }
 
-export async function decryptCacheCaptures(
+async function decryptCacheCaptures(
   envelope: CacheCaptureEnvelope,
 ): Promise<unknown[]> {
   const { encrypted } = envelope