Annotate /v1/models with OpenWebUI web_search capability (default-on)

app/main.py

@@ -489,18 +489,34 @@ async def opencollective_webhook(request: Request, token: str):
 
 @app.get("/v1/models")
 async def list_models():
-    """List models (same for everyone — no per-user auth needed)."""
+    """List models (same for everyone — no per-user auth needed).
+
+    Annotates each model with OpenWebUI metadata so web search is enabled by
+    default (defaultFeatureIds includes 'web_search'). Without this, OpenWebUI
+    leaves web search off for these models and members must toggle it manually.
+    """
     async with httpx.AsyncClient() as client:
         r = await client.get(
             f"{LITELLM_BASE}/v1/models",
             headers={"Authorization": f"Bearer {LITELLM_MASTER_KEY}"},
         )
+        if r.status_code != 200:
             return Response(
                 content=r.content,
                 status_code=r.status_code,
                 headers={"content-type": r.headers.get("content-type", "application/json")},
             )
 
+        payload = r.json()
+        for model in payload.get("data", []):
+            model.setdefault("info", {}).setdefault("meta", {})
+            model["info"]["meta"].setdefault("capabilities", {})["web_search"] = True
+            model["info"]["meta"].setdefault("defaultFeatureIds", [])
+            if "web_search" not in model["info"]["meta"]["defaultFeatureIds"]:
+                model["info"]["meta"]["defaultFeatureIds"].append("web_search")
+
+        return JSONResponse(content=payload)
+
 
 @app.api_route("/v1/{path:path}", methods=["GET", "POST", "PUT", "DELETE", "PATCH"])
 async def inject_key(request: Request, path: str):