diff --git a/packages/core/src/PageAgentCore.ts b/packages/core/src/PageAgentCore.ts
index 5e7bc83..3f78f19 100644
--- a/packages/core/src/PageAgentCore.ts
+++ b/packages/core/src/PageAgentCore.ts
@@ -15,7 +15,7 @@ import {
 	AgentActivity,
 	AgentReflection,
 	AgentStatus,
-	AgentStep,
+	AgentStepEvent,
 	ExecutionResult,
 	HistoricalEvent,
 	MacroToolInput,
@@ -256,7 +256,7 @@ export class PageAgentCore extends EventTarget {
 					next_goal: input.next_goal,
 				}
 				const actionName = Object.keys(input.action)[0]
-				const action: AgentStep['action'] = {
+				const action: AgentStepEvent['action'] = {
 					name: actionName,
 					input: input.action[actionName],
 					output: output,
@@ -269,7 +269,7 @@ export class PageAgentCore extends EventTarget {
 					action,
 					usage: result.usage,
 					rawResponse: result.rawResponse,
-				} as AgentStep)
+				} as AgentStepEvent)
 				this.#emitHistoryChange()
 
 				console.log(chalk.green('Step finished:'), actionName)
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 57c8f9f..b44fb43 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -33,7 +33,7 @@ export interface MacroToolResult {
 /**
  * A single agent step with reflection and action
  */
-export interface AgentStep {
+export interface AgentStepEvent {
 	type: 'step'
 	stepIndex: number
 	reflection: Partial<AgentReflection>
@@ -71,7 +71,7 @@ export interface UserTakeoverEvent {
 /**
  * Error event (retry or error from LLM)
  */
-export interface ErrorEvent {
+export interface AgentErrorEvent {
 	type: 'error'
 	errorType: 'retry' | 'error'
 	message: string
@@ -83,7 +83,11 @@ export interface ErrorEvent {
 /**
  * Union type for all history events
  */
-export type HistoricalEvent = AgentStep | ObservationEvent | UserTakeoverEvent | ErrorEvent
+export type HistoricalEvent =
+	| AgentStepEvent
+	| ObservationEvent
+	| UserTakeoverEvent
+	| AgentErrorEvent
 
 /**
  * Agent execution status