fix: add subagent default model typing

src/agents/pi-embedded-runner.test.ts

@@ -703,9 +703,7 @@ describe("runEmbeddedPiAgent", () => {
     ).resolves.toBeTruthy();
   });
 
-  it(
-    "persists the first user message before assistant output",
-    async () => {
+  it("persists the first user message before assistant output", async () => {
     const agentDir = await fs.mkdtemp(
       path.join(os.tmpdir(), "clawdbot-agent-"),
     );
@@ -743,9 +741,7 @@ describe("runEmbeddedPiAgent", () => {
     if (firstAssistantIndex !== -1) {
       expect(firstUserIndex).toBeLessThan(firstAssistantIndex);
     }
-    },
-    15_000,
-  );
+  }, 15_000);
 
   it("persists the user message when prompt fails before assistant output", async () => {
     const agentDir = await fs.mkdtemp(

src/cli/models-cli.test.ts

@@ -14,9 +14,7 @@ vi.mock("../commands/models.js", async () => {
 });
 
 describe("models cli", () => {
-  it(
-    "registers github-copilot login command",
-    async () => {
+  it("registers github-copilot login command", async () => {
     const { Command } = await import("commander");
     const { registerModelsCli } = await import("./models-cli.js");
 
@@ -46,7 +44,5 @@ describe("models cli", () => {
       expect.objectContaining({ yes: true }),
       expect.any(Object),
     );
-    },
-    15_000,
-  );
+  }, 15_000);
 });

src/config/types.ts

@@ -1651,6 +1651,8 @@ export type AgentDefaultsConfig = {
     maxConcurrent?: number;
     /** Auto-archive sub-agent sessions after N minutes (default: 60). */
     archiveAfterMinutes?: number;
+    /** Default model selection for spawned sub-agents (string or {primary,fallbacks}). */
+    model?: string | { primary?: string; fallbacks?: string[] };
   };
   /** Optional sandbox settings for non-main sessions. */
   sandbox?: {