diff --git a/package.json b/package.json
index a227df88..5d96f0d9 100644
--- a/package.json
+++ b/package.json
@@ -106,6 +106,7 @@
     "stream-buffers": "^3.0.2",
     "unzipit": "^1.4.0",
     "warp-arbundles": "^1.0.4",
+    "warp-contracts": "^1.4.45",
     "warp-isomorphic": "^1.0.7",
     "warp-wasm-metering": "1.0.1"
   },
diff --git a/src/core/modules/StateEvaluator.ts b/src/core/modules/StateEvaluator.ts
index f04229ce..603dbe78 100644
--- a/src/core/modules/StateEvaluator.ts
+++ b/src/core/modules/StateEvaluator.ts
@@ -97,7 +97,8 @@ export class EvalStateResult<State> {
   constructor(
     readonly state: State,
     readonly validity: Record<string, boolean>,
-    readonly errorMessages: Record<string, string>
+    readonly errorMessages: Record<string, string>,
+    readonly events?: InteractionCompleteEvent[]
   ) {}
 }
 
@@ -262,16 +263,6 @@ export interface EvaluationOptions {
   strictEvolve: boolean;
 }
 
-// https://github.com/nodejs/node/issues/40678 duh...
-export class CustomEvent<T = unknown> extends Event {
-  readonly detail: T;
-
-  constructor(message, data) {
-    super(message, data);
-    this.detail = data.detail;
-  }
-}
-
 export class InteractionCompleteEvent<Input = unknown, T = unknown> {
   constructor(
     readonly contractTxId: string,
diff --git a/src/core/modules/impl/DefaultStateEvaluator.ts b/src/core/modules/impl/DefaultStateEvaluator.ts
index 91f27af3..46904467 100644
--- a/src/core/modules/impl/DefaultStateEvaluator.ts
+++ b/src/core/modules/impl/DefaultStateEvaluator.ts
@@ -8,7 +8,7 @@ import { GQLNodeInterface, GQLTagInterface } from '../../../legacy/gqlResult';
 import { Benchmark } from '../../../logging/Benchmark';
 import { LoggerFactory } from '../../../logging/LoggerFactory';
 import { indent } from '../../../utils/utils';
-import { EvalStateResult, StateEvaluator, CustomEvent } from '../StateEvaluator';
+import { EvalStateResult, StateEvaluator } from '../StateEvaluator';
 import { AbortError, ContractInteraction, HandlerApi, InteractionResult } from './HandlerExecutorFactory';
 import { TagsParser } from './TagsParser';
 import { VrfPluginFunctions } from '../../WarpPlugin';
@@ -44,7 +44,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
   ): Promise<SortKeyCacheResult<EvalStateResult<State>>> {
     return this.doReadState(
       executionContext.sortedInteractions,
-      new EvalStateResult<State>(executionContext.contractDefinition.initState, {}, {}),
+      new EvalStateResult<State>(executionContext.contractDefinition.initState, {}, {}, []),
       executionContext
     );
   }
@@ -61,6 +61,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
     let currentSortKey = null;
     const validity = baseState.validity;
     const errorMessages = baseState.errorMessages;
+    const events = [];
 
     // TODO: opt - reuse wasm handlers
     executionContext?.handler.initState(currentState);
@@ -97,7 +98,11 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
       currentSortKey = missingInteraction.sortKey;
       contract
         .interactionState()
-        .setInitial(contract.txId(), new EvalStateResult(currentState, validity, errorMessages), currentSortKey);
+        .setInitial(
+          contract.txId(),
+          new EvalStateResult(currentState, validity, errorMessages, events),
+          currentSortKey
+        );
       const singleInteractionBenchmark = Benchmark.measure();
 
       if (missingInteraction.vrf) {
@@ -166,7 +171,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
             this.logger.warn(`Skipping contract in internal write, reason ${e.subtype || e.name}`);
             errorMessages[missingInteraction.id] = e;
             if (canBeCached(missingInteraction)) {
-              const toCache = new EvalStateResult(currentState, validity, errorMessages);
+              const toCache = new EvalStateResult(currentState, validity, errorMessages, events);
               lastConfirmedTxState = {
                 tx: missingInteraction,
                 state: toCache
@@ -197,7 +202,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
               writingContractState.cachedValue.errorMessages[missingInteraction.id];
           }
 
-          const toCache = new EvalStateResult(currentState, validity, errorMessages);
+          const toCache = new EvalStateResult(currentState, validity, errorMessages, events);
           if (canBeCached(missingInteraction)) {
             lastConfirmedTxState = {
               tx: missingInteraction,
@@ -244,7 +249,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
 
         const result = await executionContext.handler.handle(
           executionContext,
-          new EvalStateResult(currentState, validity, errorMessages),
+          new EvalStateResult(currentState, validity, errorMessages, events),
           interactionData
         );
 
@@ -274,7 +279,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
 
         currentState = result.state;
 
-        const toCache = new EvalStateResult(currentState, validity, errorMessages);
+        const toCache = new EvalStateResult(currentState, validity, errorMessages, events);
         if (canBeCached(missingInteraction)) {
           lastConfirmedTxState = {
             tx: missingInteraction,
@@ -284,9 +289,7 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
 
         const event = result.event;
         if (event) {
-          warp.eventTarget.dispatchEvent(
-            new CustomEvent(isValidInteraction ? 'interactionCompleted' : 'interactionFailed', { detail: event })
-          );
+          events.push(event);
         }
       }
 
@@ -336,11 +339,11 @@ export abstract class DefaultStateEvaluator implements StateEvaluator {
         }
       } else {
         // if that's an inner contract call - only update the state in the uncommitted states
-        const interactionState = new EvalStateResult(currentState, validity, errorMessages);
+        const interactionState = new EvalStateResult(currentState, validity, errorMessages, events);
         contract.interactionState().update(contract.txId(), interactionState, currentSortKey);
       }
     }
-    const evalStateResult = new EvalStateResult<State>(currentState, validity, errorMessages);
+    const evalStateResult = new EvalStateResult<State>(currentState, validity, errorMessages, events);
 
     // state could have been fully retrieved from cache
     // or there were no interactions below requested sort key