diff --git a/src/core/RPCPlugin.ts b/src/core/RPCPlugin.ts
index 31e0b85..96207d9 100644
--- a/src/core/RPCPlugin.ts
+++ b/src/core/RPCPlugin.ts
@@ -21,11 +21,14 @@ export interface CallOutgoingCtx extends CallOutgoingBeforeCtx {
 }
 
 export interface CallIncomingBeforeCtx extends BaseHookCtx {
-
+    session: RPCSession;
+    request: unknown;
+    setRequest: (req: unknown) => void;
 }
 
 export interface CallIncomingCtx extends CallIncomingBeforeCtx {
-
+    response: unknown;
+    setResponse: (res: unknown) => void;
 }
 
 export type NormalMethodReturn = Promise<void> | void;