director: few-shot prompt + honest contract (8-40 chars)

kaggle/notebook_director.py

@@ -30,8 +30,10 @@ def main() -> None:
     target = os.path.join(BUNDLE, "kaggle/director_probe.py")
     if not os.path.exists(target):
         raise SystemExit(f"{target} missing")
-    rc = subprocess.run([sys.executable, target],
-                        env=dict(os.environ, WORK_ROOT="/kaggle/working")).returncode
+    env = dict(os.environ, WORK_ROOT="/kaggle/working",
+               MODE=os.environ.get("MODE", "probe"),
+               N_SAMPLES=os.environ.get("N_SAMPLES", "8"))
+    rc = subprocess.run([sys.executable, target], env=env).returncode
     print("director rc", rc)