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app.py

@@ -14,6 +14,7 @@ The gr.Blocks streaming version is retained at ``matchday/app.py`` as a fallback
 """
 from __future__ import annotations
 
+import asyncio
 import json
 import logging
 import os
@@ -45,7 +46,28 @@ USE_AGENT = True
 HERE = Path(__file__).parent
 INDEX_HTML = HERE / "index.html"
 
-app = Server()
+
+async def _warm_nemotron() -> None:
+    """Best-effort warm generate on Space startup so the FIRST user query isn't
+    stuck behind a Modal cold start (~2 min warm from the weight cache). Runs as
+    a fire-and-forget background task; never blocks startup, never raises.
+    """
+    try:
+        agent = MatchDayAgent()
+        await asyncio.wait_for(
+            agent.run([{"role": "user", "content": "warmup ping"}]), timeout=240
+        )
+        logger.info("startup warmup ping completed — Nemotron container is hot")
+    except Exception as exc:  # noqa: BLE001 — best-effort, must not break boot
+        logger.info("startup warmup ping ended early (%s)", repr(exc)[:80])
+
+
+async def _startup_warmup() -> None:
+    """Server startup hook — schedule the warmup without blocking boot."""
+    asyncio.create_task(_warm_nemotron())
+
+
+app = Server(on_startup=[_startup_warmup])
 
 
 def _ev(**payload) -> str: