fix(app): settle out-of-band submissions compatibly

packages/server/src/server/agent/agent-manager.ts

@@ -1952,19 +1952,12 @@ export class AgentManager {
    * emitted by the handler flow through dispatchStream so they persist and
    * broadcast like normal timeline events.
    */
-  tryRunOutOfBand(
-    agentId: string,
-    prompt: AgentPromptInput,
-    runOptions?: AgentRunOptions,
-  ): boolean {
+  tryRunOutOfBand(agentId: string, prompt: AgentPromptInput): boolean {
     const agent = this.requireSessionAgent(agentId);
     const handler = agent.session.tryHandleOutOfBand?.(prompt);
     if (!handler) {
       return false;
     }
-    if (typeof prompt !== "string") {
-      throw new Error("Out-of-band commands require a text prompt");
-    }
     const dispatch = (event: AgentStreamEvent): void => {
       // Persist timeline items so they show up in fetchAgentTimeline; broadcast
       // for live subscribers. Other event types are broadcast only.
@@ -1980,15 +1973,6 @@ export class AgentManager {
       }
       this.dispatchStream(agent.id, event, { timestamp: new Date().toISOString() });
     };
-    dispatch({
-      type: "timeline",
-      provider: agent.provider,
-      item: {
-        type: "user_message",
-        text: prompt,
-        ...(runOptions?.clientMessageId ? { clientMessageId: runOptions.clientMessageId } : {}),
-      },
-    });
     void (async () => {
       try {
         await handler.run({ emit: dispatch });

packages/server/src/server/agent/agent-prompt.ts

@@ -41,7 +41,7 @@ export async function startAgentRun(
   // Out-of-band commands (e.g. /goal pause) must run WITHOUT canceling an
   // in-flight turn — replaceAgentRun would interrupt the running turn. The
   // intercept lives at this layer so it covers every prompt entrypoint.
-  if (agentManager.tryRunOutOfBand(agentId, prompt, options?.runOptions)) {
+  if (agentManager.tryRunOutOfBand(agentId, prompt)) {
     return { outOfBand: true };
   }
   const shouldReplace = Boolean(options?.replaceRunning && agentManager.hasInFlightRun(agentId));

packages/server/src/server/session.ts

@@ -6335,6 +6335,7 @@ export class Session {
             agentId,
             accepted: true,
             error: null,
+            outOfBand: true,
           },
         });
         return;
@@ -6362,6 +6363,7 @@ export class Session {
           agentId,
           accepted: true,
           error: null,
+          outOfBand: false,
         },
       });
     } catch (error) {