fix(producer): validate render request engine snapshots

packages/producer/src/renderRequest.test.ts

@@ -174,6 +174,35 @@ describe("RenderRequest", () => {
     ).toThrow("distributed.width");
   });
 
+  it("requires complete and valid engine config snapshots on both wire paths", () => {
+    const value = request();
+    for (const engineConfig of [
+      {},
+      { ...value.options.engineConfig, protocolTimeout: "forever" },
+      { ...value.options.engineConfig, browserGpuMode: "turbo" },
+    ]) {
+      expect(() =>
+        parseRenderRequest({ ...value, options: { ...value.options, engineConfig } }),
+      ).toThrow("Engine config");
+    }
+
+    for (const engineConfig of [
+      {},
+      { ...value.options.engineConfig, protocolTimeout: "forever" },
+      { ...value.options.engineConfig, browserGpuMode: "turbo" },
+    ]) {
+      const distributed = distributedConfigFromRequest(value);
+      (distributed as { engineConfig: unknown }).engineConfig = engineConfig;
+      expect(() =>
+        renderRequestFromDistributedConfig({
+          projectDir: value.projectDir,
+          outputPath: value.outputPath,
+          config: distributed,
+        }),
+      ).toThrow("Engine config");
+    }
+  });
+
   it("validates the reverse distributed adapter at the wire boundary", () => {
     const distributed = distributedConfigFromRequest(request());
     distributed.width = 1921;

packages/producer/src/renderRequest.ts

@@ -1,6 +1,7 @@
 import {
   isVideoFrameFormat,
   resolveConfig,
+  validateEngineConfigSnapshot,
   type EngineConfig,
   type VideoFrameFormat,
 } from "@hyperframes/engine";
@@ -176,9 +177,7 @@ function assertRequestOptionScalars(options: Record<string, unknown>): void {
 }
 
 function assertRequestOptionObjects(options: Record<string, unknown>): void {
-  if (!isPlainObject(options.engineConfig)) {
-    throw new Error("Render request must contain a resolved engineConfig snapshot");
-  }
+  validateEngineConfigSnapshot(options.engineConfig);
   if (options.variables !== undefined && !isPlainObject(options.variables)) {
     throw new Error("Render request variables must be a JSON object");
   }

packages/producer/src/services/distributed/renderConfigValidation.ts

@@ -17,7 +17,11 @@
  * needs the actual planner.
  */
 
-import { VIDEO_FRAME_FORMATS, isVideoFrameFormat } from "@hyperframes/engine";
+import {
+  VIDEO_FRAME_FORMATS,
+  isVideoFrameFormat,
+  validateEngineConfigSnapshot,
+} from "@hyperframes/engine";
 import { type DistributedFormat } from "./shared.js";
 import { type DistributedRenderConfig } from "./plan.js";
 
@@ -204,7 +208,7 @@ export function validateDistributedRenderConfig(
     validateVariablesPayload(config.variables);
   }
   if (config.engineConfig !== undefined) {
-    walkVariables(config.engineConfig, "config.engineConfig", new WeakSet());
+    validateEngineConfigSnapshot(config.engineConfig);
   }
 
   return config;