feat(agent): sync model when switching agents

src/agent/manager.ts

@@ -26,9 +26,17 @@ export async function getAvailableAgents(): Promise<AgentInfo[]> {
     }
 
     // Filter out hidden agents and subagents (only show primary and all)
-    const filtered = agents.filter(
-      (agent) => !agent.hidden && (agent.mode === "primary" || agent.mode === "all"),
-    );
+    const filtered = agents
+      .filter((agent) => !agent.hidden && (agent.mode === "primary" || agent.mode === "all"))
+      .map((agent) => ({
+        name: agent.name,
+        description: agent.description,
+        color: agent.color,
+        mode: agent.mode,
+        hidden: agent.hidden,
+        steps: agent.steps,
+        model: agent.model ? { modelID: agent.model.modelID, providerID: agent.model.providerID } : undefined,
+      }));
 
     logger.debug(`[AgentManager] Fetched ${filtered.length} available agents`);
     return filtered;
@@ -138,6 +146,12 @@ export function selectAgent(agentName: string): void {
   setCurrentAgent(agentName);
 }
 
+export async function getModelForAgent(agentName: string): Promise<{ modelID: string; providerID: string } | null> {
+  const agents = await getAvailableAgents();
+  const agent = agents.find((a) => a.name === agentName);
+  return agent?.model ?? null;
+}
+
 /**
  * Get stored agent from settings (synchronous)
  * @returns Current agent name or default "build"

src/agent/types.ts

@@ -8,6 +8,10 @@ export interface AgentInfo {
   mode: "subagent" | "primary" | "all";
   hidden?: boolean;
   steps?: number;
+  model?: {
+    modelID: string;
+    providerID: string;
+  };
 }
 
 /**

src/background-session/tracker.ts

@@ -92,6 +92,20 @@ class BackgroundSessionTracker {
       case "session.idle":
         this.handleSessionIdle(event.properties as SessionIdleEventProperties, currentSessionId);
         break;
+      case "session.deleted": {
+        const props = event.properties as SessionInfoEventProperties;
+        const deletedId = props.info?.id;
+        if (deletedId) {
+          this.sessionTitles.delete(deletedId);
+          this.childSessionIds.delete(deletedId);
+          this.completedAssistantMessageIds.delete(deletedId);
+          this.pendingAssistantResponsesBySessionId.delete(deletedId);
+          this.questionRequestIds.delete(deletedId);
+          this.permissionRequestIds.delete(deletedId);
+          logger.debug(`[BackgroundSessionTracker] Cleaned up deleted session: id=${deletedId}`);
+        }
+        break;
+      }
       case "question.asked":
         this.handleRequestEvent(
           "question_asked",

src/bot/commands/definitions.ts

@@ -31,7 +31,6 @@ const COMMAND_DEFINITIONS: BotCommandI18nDefinition[] = [
   { command: "worktree", descriptionKey: "cmd.description.worktree" },
   { command: "task", descriptionKey: "cmd.description.task" },
   { command: "tasklist", descriptionKey: "cmd.description.tasklist" },
-  { command: "rename", descriptionKey: "cmd.description.rename" },
   { command: "commands", descriptionKey: "cmd.description.commands" },
   { command: "skills", descriptionKey: "cmd.description.skills" },
   { command: "mcps", descriptionKey: "cmd.description.mcps" },