diff --git a/packages/core/src/aisdk.ts b/packages/core/src/aisdk.ts
index 835d36fe4c..65a89f8251 100644
--- a/packages/core/src/aisdk.ts
+++ b/packages/core/src/aisdk.ts
@@ -5,7 +5,6 @@ import { Cause, Context, Effect, Layer, Schema, Scope } from "effect"
 import { ModelV2 } from "./model"
 import { ProviderV2 } from "./provider"
 import { State } from "./state"
-import { errorMessage } from "./util/error"
 
 type SDK = any
 
@@ -126,7 +125,7 @@ export class InitError extends Schema.TaggedErrorClass<InitError>()("AISDK.InitE
   cause: Schema.Defect(),
 }) {
   override get message() {
-    return `Failed to initialize AI SDK provider ${this.providerID}: ${errorMessage(this.cause)}`
+    return `Failed to initialize AI SDK provider: ${this.providerID}`
   }
 }
 
diff --git a/packages/core/src/integration.ts b/packages/core/src/integration.ts
index dd0d29e566..d501cf8cd8 100644
--- a/packages/core/src/integration.ts
+++ b/packages/core/src/integration.ts
@@ -179,8 +179,7 @@ export class AuthorizationError extends Schema.TaggedErrorClass<AuthorizationErr
   cause: Schema.Defect(),
 }) {
   override get message() {
-    const detail = this.cause instanceof Error ? this.cause.message : String(this.cause)
-    return `Integration authorization failed${detail ? `: ${detail}` : ""}`
+    return "Integration authorization failed"
   }
 }