diff --git a/apps/server/src/orchestration-v2/SubagentProjection.test.ts b/apps/server/src/orchestration-v2/SubagentProjection.test.ts
index 29deb33a3ae6e..87204d763d2df 100644
--- a/apps/server/src/orchestration-v2/SubagentProjection.test.ts
+++ b/apps/server/src/orchestration-v2/SubagentProjection.test.ts
@@ -1,6 +1,7 @@
 import { assert, it } from "@effect/vitest";
 import {
   CommandId,
+  EnvironmentId,
   type ModelSelection,
   NodeId,
   RunId,
@@ -82,10 +83,15 @@ function makeParentThread(): OrchestrationV2AppThread {
   };
 }
 
-it("keeps a subagent child awake when its parent thread is snoozed", () => {
+it("resets a subagent child's snooze, title job and remote delegation but keeps its workspace", () => {
   const parentThread: OrchestrationV2AppThread = {
     ...makeParentThread(),
     titleRegeneration: { requestId: CommandId.make("command:parent-title"), startedAt: snoozedAt },
+    delegatedFrom: {
+      environmentId: EnvironmentId.make("linked-environment"),
+      threadId: ThreadId.make("linked-parent"),
+      title: "Linked parent",
+    },
   };
   const childProviderThreadId = ProviderThreadId.make("provider-thread:subagent-awake-child");
   const parentNodeId = NodeId.make("node:subagent-parent");
@@ -105,6 +111,7 @@ it("keeps a subagent child awake when its parent thread is snoozed", () => {
   assert.isNull(childThread.snoozedUntil);
   assert.isNull(childThread.snoozedAt);
   assert.isNull(childThread.titleRegeneration);
+  assert.isUndefined(childThread.delegatedFrom);
   assert.equal(childThread.projectId, parentThread.projectId);
   assert.equal(childThread.runtimeMode, parentThread.runtimeMode);
   assert.equal(childThread.interactionMode, parentThread.interactionMode);
diff --git a/packages/provider-core/src/server/subagentProjection.ts b/packages/provider-core/src/server/subagentProjection.ts
index f476bdc70ff80..f2c3092bf17da 100644
--- a/packages/provider-core/src/server/subagentProjection.ts
+++ b/packages/provider-core/src/server/subagentProjection.ts
@@ -61,8 +61,10 @@ export function makeSubagentChildThread(input: {
   readonly createdBy: OrchestrationV2Actor;
   readonly creationSource: OrchestrationV2CreationSource;
 }): OrchestrationV2AppThread {
+  // The remote parent delegated the parent thread, not its subagents.
+  const { delegatedFrom: _delegatedFrom, ...inherited } = input.parentThread;
   return {
-    ...input.parentThread,
+    ...inherited,
     createdBy: input.createdBy,
     creationSource: input.creationSource,
     id: input.childThreadId,