diff --git a/src/general.py b/src/general.py
index e73d3a9..f981133 100644
--- a/src/general.py
+++ b/src/general.py
@@ -15,6 +15,23 @@ class LogKind:
     class Err: pass
     class Debug: pass
 
+@pwp_enum
+class CandleInterval:
+    class OneMinute: pass
+    class ThreeMinutes: pass
+    class FiveMinutes: pass
+    class FifteenMinutes: pass
+    class ThirtyMinutes: pass
+    class OneHour: pass
+    class TwoHours: pass
+    class FourHours: pass
+    class EightHours: pass
+    class TwelveHours: pass
+    class OneDay: pass
+    class ThreeDays: pass
+    class OneWeek: pass
+    class OneMonth: pass
+
 @pwp
 class Signal:
     symbol: str
@@ -31,8 +48,29 @@ class EventLog:
     name: str
     message: str
 
+@pwp
 class Position:
     symbol: units.Symbol
     size: f64
     entry_price: units.USD
-    profit: units.USD
\ No newline at end of file
+    profit: units.USD
+
+@pwp
+class MarketItem:
+    symbol: units.Symbol
+    price: units.USD
+    trend: f64
+    volume_24h: units.USD
+
+@pwp
+class Candle:
+    open_time: u64
+    close_time: u64
+    coin: str
+    interval: str
+    open: f64
+    high: f64
+    low: f64
+    close: f64
+    volume: f64
+    num_trades: u64
diff --git a/src/plugin.py b/src/plugin.py
new file mode 100644
index 0000000..dcd3166
--- /dev/null
+++ b/src/plugin.py
@@ -0,0 +1,83 @@
+from pwp import pwp, pwp_enum
+from adv_types import *
+import units
+import general
+from typing import Optional
+
+@pwp
+class StrategySignal:
+    symbol: str
+    side: units.Direction
+    confidence: f32
+    price: Optional[f64]
+
+@pwp_enum
+class StrategyMessage:
+    class Log:
+        log: general.EventLog
+
+    class GetWatchList: pass
+
+    class RequestCandlestick:
+        symbol: str
+        interval: u8
+        count: u32
+
+    class Subscribe:
+        subscription: u8
+
+    class Unsubscribe:
+        subscription: u8
+
+    class UnsubscribeAll: pass
+
+    class Signal:
+        signal: StrategySignal
+
+@pwp_enum
+class RiskMessage:
+    class Log:
+        log: general.EventLog
+    
+    class GetWatchList: pass
+
+    class Approve:
+        signal: general.Signal
+
+    class Reject:
+        reason: str
+
+@pwp_enum
+class StrategyEngineMessage:
+    class Initialize: pass
+
+    class WatchList:
+        watchlist: list[general.MarketItem]
+
+    class Command:
+        command: str
+        args: list[str]
+
+    class CandleUpdate:
+        symbol: str
+        interval: general.CandleInterval
+        candle: general.Candle
+
+    class CandleStick:
+        symbol: str
+        interval: general.CandleInterval
+        candles: list[general.Candle]
+
+@pwp_enum
+class RiskEngineMessage:
+    class Initialize: pass
+
+    class WatchList:
+        watchlist: list[general.MarketItem]
+
+    class Command:
+        command: str
+        args: list[str]
+
+    class Signal:
+        signal: general.Signal
\ No newline at end of file