fix(core): propagate subagent context to policy engine (#22086)

packages/core/src/agents/agent-scheduler.ts

@@ -19,6 +19,8 @@ import type { EditorType } from '../utils/editor.js';
 export interface AgentSchedulingOptions {
   /** The unique ID for this agent's scheduler. */
   schedulerId: string;
+  /** The name of the subagent. */
+  subagent?: string;
   /** The ID of the tool call that invoked this agent. */
   parentCallId?: string;
   /** The tool registry specific to this agent. */
@@ -46,6 +48,7 @@ export async function scheduleAgentTools(
 ): Promise<CompletedToolCall[]> {
   const {
     schedulerId,
+    subagent,
     parentCallId,
     toolRegistry,
     signal,
@@ -69,6 +72,7 @@ export async function scheduleAgentTools(
     messageBus: toolRegistry.getMessageBus(),
     getPreferredEditor: getPreferredEditor ?? (() => undefined),
     schedulerId,
+    subagent,
     parentCallId,
     onWaitingForConfirmation,
   });

packages/core/src/agents/local-executor.ts

@@ -1099,6 +1099,7 @@ export class LocalAgentExecutor<TOutput extends z.ZodTypeAny> {
         toolRequests,
         {
           schedulerId: this.agentId,
+          subagent: this.definition.name,
           parentCallId: this.parentCallId,
           toolRegistry: this.toolRegistry,
           signal,