diff --git a/nexus/evennia_ws_bridge.py b/nexus/evennia_ws_bridge.py
index 3820d377..c578cfae 100644
--- a/nexus/evennia_ws_bridge.py
+++ b/nexus/evennia_ws_bridge.py
@@ -243,24 +243,108 @@ async def playback(log_path: Path, ws_url: str):
                 await ws.send(json.dumps(event))
 
 
+async def inject_event(event_type: str, ws_url: str, **kwargs):
+    """Inject a single Evennia event into the Nexus WS gateway. Dev/test use."""
+    from nexus.evennia_event_adapter import (
+        actor_located, command_issued, command_result,
+        room_snapshot, session_bound,
+    )
+
+    builders = {
+        "room_snapshot": lambda: room_snapshot(
+            kwargs.get("room_key", "Gate"),
+            kwargs.get("title", "Gate"),
+            kwargs.get("desc", "The entrance gate."),
+            exits=kwargs.get("exits"),
+            objects=kwargs.get("objects"),
+        ),
+        "actor_located": lambda: actor_located(
+            kwargs.get("actor_id", "Timmy"),
+            kwargs.get("room_key", "Gate"),
+            kwargs.get("room_name"),
+        ),
+        "command_result": lambda: command_result(
+            kwargs.get("session_id", "dev-inject"),
+            kwargs.get("actor_id", "Timmy"),
+            kwargs.get("command_text", "look"),
+            kwargs.get("output_text", "You see the Gate."),
+            success=kwargs.get("success", True),
+        ),
+        "command_issued": lambda: command_issued(
+            kwargs.get("session_id", "dev-inject"),
+            kwargs.get("actor_id", "Timmy"),
+            kwargs.get("command_text", "look"),
+        ),
+        "session_bound": lambda: session_bound(
+            kwargs.get("session_id", "dev-inject"),
+            kwargs.get("account", "Timmy"),
+            kwargs.get("character", "Timmy"),
+        ),
+    }
+
+    if event_type not in builders:
+        print(f"[inject] Unknown event type: {event_type}", flush=True)
+        print(f"[inject] Available: {', '.join(builders)}", flush=True)
+        sys.exit(1)
+
+    event = builders[event_type]()
+    payload = json.dumps(event)
+
+    if websockets is None:
+        print(f"[inject] websockets not installed, printing event:\n{payload}", flush=True)
+        return
+
+    try:
+        async with websockets.connect(ws_url, open_timeout=5) as ws:
+            await ws.send(payload)
+            print(f"[inject] Sent {event_type} -> {ws_url}", flush=True)
+            print(f"[inject] Payload: {payload}", flush=True)
+    except Exception as e:
+        print(f"[inject] Failed to send to {ws_url}: {e}", flush=True)
+        sys.exit(1)
+
+
 def main():
     parser = argparse.ArgumentParser(description="Evennia -> Nexus WebSocket Bridge")
     sub = parser.add_subparsers(dest="mode")
-    
+
     live = sub.add_parser("live", help="Live tail Evennia logs and stream to Nexus")
     live.add_argument("--log-dir", default="/root/workspace/timmy-academy/server/logs", help="Evennia logs directory")
     live.add_argument("--ws", default="ws://127.0.0.1:8765", help="Nexus WebSocket URL")
-    
+
     replay = sub.add_parser("playback", help="Replay a telemetry JSONL file")
     replay.add_argument("log_path", help="Path to Evennia telemetry JSONL")
     replay.add_argument("--ws", default="ws://127.0.0.1:8765", help="Nexus WebSocket URL")
-    
+
+    inject = sub.add_parser("inject", help="Inject a single Evennia event (dev/test)")
+    inject.add_argument("event_type", choices=["room_snapshot", "actor_located", "command_result", "command_issued", "session_bound"])
+    inject.add_argument("--ws", default="ws://127.0.0.1:8765", help="Nexus WebSocket URL")
+    inject.add_argument("--room-key", default="Gate", help="Room key (room_snapshot, actor_located)")
+    inject.add_argument("--title", default="Gate", help="Room title (room_snapshot)")
+    inject.add_argument("--desc", default="The entrance gate.", help="Room description (room_snapshot)")
+    inject.add_argument("--actor-id", default="Timmy", help="Actor ID")
+    inject.add_argument("--command-text", default="look", help="Command text (command_result, command_issued)")
+    inject.add_argument("--output-text", default="You see the Gate.", help="Command output (command_result)")
+    inject.add_argument("--session-id", default="dev-inject", help="Hermes session ID")
+
     args = parser.parse_args()
-    
+
     if args.mode == "live":
         asyncio.run(live_bridge(args.log_dir, args.ws))
     elif args.mode == "playback":
         asyncio.run(playback(Path(args.log_path).expanduser(), args.ws))
+    elif args.mode == "inject":
+        asyncio.run(inject_event(
+            args.event_type,
+            args.ws,
+            room_key=args.room_key,
+            title=args.title,
+            desc=args.desc,
+            actor_id=args.actor_id,
+            command_text=args.command_text,
+            output_text=args.output_text,
+            session_id=args.session_id,
+        ))
     else:
         parser.print_help()