allow game_config to provide frontend_url instead of port

Author: Jerry-Terrasse

agent/run_agent.py

@@ -183,16 +183,19 @@ def main() -> None:
     )
     report = orchestrator.run(game_profile)
     port = game_config.get("port")
-    if port is None:
-        raise ValueError(f"Game config for '{args.game}' is missing required 'port'")
-    game_base_url = str(game_config.get("base_url") or "").strip() or (
-        f"http://localhost:{port}/api/agent"
-    )
-    frontend_url = str(
-        game_config.get("frontend_url")
-        or backend_spec.settings.get("frontend_url")
-        or f"http://localhost:{port}"
+    configured_frontend_url = str(
+        game_config.get("frontend_url") or backend_spec.settings.get("frontend_url") or ""
     ).strip()
+    if port is None and not configured_frontend_url:
+        raise ValueError(
+            f"Game config for '{args.game}' must provide at least one of 'port' or 'frontend_url'"
+        )
+    game_base_url = str(game_config.get("base_url") or "").strip()
+    if not game_base_url and port is not None:
+        game_base_url = f"http://localhost:{port}/api/agent"
+    frontend_url = configured_frontend_url
+    if not frontend_url and port is not None:
+        frontend_url = f"http://localhost:{port}"
     report.metadata["llm"] = {
         "model": model,
         "platform": resolved_platform,