diff --git a/packages/devframe/src/client/static-rpc.test.ts b/packages/devframe/src/client/static-rpc.test.ts
index e91fe3a..387ce1b 100644
--- a/packages/devframe/src/client/static-rpc.test.ts
+++ b/packages/devframe/src/client/static-rpc.test.ts
@@ -170,4 +170,77 @@ describe('createStaticRpcCaller', () => {
 
     await expect(caller.call('demo:legacy-static', [])).resolves.toEqual({ items: [1, 2, 3] })
   })
+
+  it('treats placeholder args on static entries as a no-arg call', async () => {
+    const caller = createStaticRpcCaller(
+      {
+        'demo:messages': {
+          type: 'static',
+          path: DEMO_STATIC_VERSION_PATH,
+        },
+      },
+      async () => ({ output: ['ok'] }),
+    )
+
+    await expect(caller.call('demo:messages', [null])).resolves.toEqual(['ok'])
+    await expect(caller.call('demo:messages', [undefined])).resolves.toEqual(['ok'])
+    await expect(caller.call('demo:messages', ['real'])).rejects.toThrow('No dump match')
+  })
+
+  it('treats placeholder args on legacy inline entries as a no-arg call', async () => {
+    const caller = createStaticRpcCaller(
+      {
+        'demo:legacy': { ok: true },
+      },
+      async () => {
+        throw new Error('Should not fetch')
+      },
+    )
+
+    await expect(caller.call('demo:legacy', [null])).resolves.toEqual({ ok: true })
+    await expect(caller.call('demo:legacy', ['real'])).rejects.toThrow('No dump match')
+  })
+
+  it('unwraps enveloped static files written as the full StaticRpcDumpFile', async () => {
+    const caller = createStaticRpcCaller(
+      {
+        'demo:graph': {
+          type: 'static',
+          path: `${DEVFRAME_RPC_DUMP_DIRNAME}/demo~graph.static.json`,
+          serialization: 'structured-clone',
+        },
+      },
+      async () => ({
+        serialization: 'structured-clone',
+        fnName: 'demo:graph',
+        data: JSON.parse(structuredCloneStringify({ output: new Map([['a', 1]]) })),
+      }),
+    )
+
+    const result = await caller.call('demo:graph', []) as Map<string, number>
+    expect(result).toBeInstanceOf(Map)
+    expect(result.get('a')).toBe(1)
+  })
+
+  it('unwraps enveloped query records written as the full StaticRpcDumpFile', async () => {
+    const recordPath = `${DEMO_QUERY_BASE_PATH}.record.${hash(['k'])}.json`
+    const caller = createStaticRpcCaller(
+      {
+        'demo:query-set': {
+          type: 'query',
+          serialization: 'structured-clone',
+          records: { [hash(['k'])]: recordPath },
+        },
+      },
+      async () => ({
+        serialization: 'structured-clone',
+        fnName: 'demo:query-set',
+        data: JSON.parse(structuredCloneStringify({ inputs: ['k'], output: new Set(['x']) })),
+      }),
+    )
+
+    const result = await caller.call('demo:query-set', ['k']) as Set<string>
+    expect(result).toBeInstanceOf(Set)
+    expect(result.has('x')).toBe(true)
+  })
 })
diff --git a/packages/devframe/src/client/static-rpc.ts b/packages/devframe/src/client/static-rpc.ts
index 06ba74d..611e763 100644
--- a/packages/devframe/src/client/static-rpc.ts
+++ b/packages/devframe/src/client/static-rpc.ts
@@ -60,6 +60,26 @@ function resolveRecordOutput(record: StaticRpcRecord): any {
   return record.output
 }
 
+// Placeholder args (`[null]`/`[undefined]`) from framework setup hooks carry no
+// addressing info and must be treated as a no-arg call.
+function hasMeaningfulArgs(args: any[]): boolean {
+  return args.some(arg => arg !== null && arg !== undefined)
+}
+
+// `collectStaticRpcDump`/`StaticRpcDumpFile` are public, so consumers may persist
+// the whole `{ serialization, fnName, data }` envelope instead of just `data`.
+function unwrapEnvelope(raw: unknown): unknown {
+  if (
+    raw !== null
+    && typeof raw === 'object'
+    && 'serialization' in raw
+    && 'data' in raw
+  ) {
+    return (raw as { data: unknown }).data
+  }
+  return raw
+}
+
 export function createStaticRpcCaller(
   manifest: StaticRpcManifest,
   fetchJson: (path: string) => Promise<any>,
@@ -68,16 +88,22 @@ export function createStaticRpcCaller(
   const queryRecordCache = new Map<string, Promise<StaticRpcRecord>>()
 
   function reviveIfStructuredClone(value: unknown, serialization: StaticRpcSerialization | undefined): any {
-    if (serialization === 'structured-clone')
-      return structuredCloneDeserialize(value as any)
+    // structured-clone-es always encodes to a records array; a non-array here
+    // means the payload was not SC-encoded, so pass it through untouched.
+    if (serialization === 'structured-clone' && Array.isArray(value))
+      return structuredCloneDeserialize(value)
     return value
   }
 
+  function decode(raw: unknown, serialization: StaticRpcSerialization | undefined): any {
+    return reviveIfStructuredClone(unwrapEnvelope(raw), serialization)
+  }
+
   async function loadStatic(entry: StaticRpcManifestStaticEntry): Promise<any> {
     if (!staticCache.has(entry.path)) {
       staticCache.set(
         entry.path,
-        fetchJson(entry.path).then(raw => reviveIfStructuredClone(raw, entry.serialization)),
+        fetchJson(entry.path).then(raw => decode(raw, entry.serialization)),
       )
     }
     const data = await staticCache.get(entry.path)!
@@ -94,7 +120,7 @@ export function createStaticRpcCaller(
     if (!queryRecordCache.has(path)) {
       queryRecordCache.set(
         path,
-        fetchJson(path).then(raw => reviveIfStructuredClone(raw, serialization)),
+        fetchJson(path).then(raw => decode(raw, serialization)),
       )
     }
     return await queryRecordCache.get(path)!
@@ -107,7 +133,7 @@ export function createStaticRpcCaller(
 
     const entry = manifest[functionName]
     if (isStaticEntry(entry)) {
-      if (args.length > 0) {
+      if (hasMeaningfulArgs(args)) {
         throw new Error(
           `[devframe-rpc] No dump match for "${functionName}" with args: ${JSON.stringify(args)}`,
         )
@@ -134,7 +160,7 @@ export function createStaticRpcCaller(
       )
     }
 
-    if (args.length === 0) {
+    if (!hasMeaningfulArgs(args)) {
       return entry
     }