From b1138dce82485b6b9dd9b035a18d50b5f3ad021e Mon Sep 17 00:00:00 2001
From: "sentry[bot]" <39604003+sentry[bot]@users.noreply.github.com>
Date: Thu, 30 Jul 2026 10:40:16 +0000
Subject: [PATCH] fix(sentry): Filter UserInputError from Sentry

---
 packages/mcp-core/src/telem/sentry.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/packages/mcp-core/src/telem/sentry.ts b/packages/mcp-core/src/telem/sentry.ts
index c55271da1..158ac740c 100644
--- a/packages/mcp-core/src/telem/sentry.ts
+++ b/packages/mcp-core/src/telem/sentry.ts
@@ -98,6 +98,15 @@ export function sentryBeforeSend(event: any, hint: any): any {
   // (e.g., "Country, region, or territory not supported", temperature issues).
   // Without custom fingerprinting, they all get grouped into a single issue.
   const firstException = event?.exception?.values?.[0];
+
+  // Drop expected user-input and configuration errors — these are not bugs.
+  if (
+    firstException?.type === "UserInputError" ||
+    firstException?.type === "ConfigurationError"
+  ) {
+    return null;
+  }
+
   if (firstException?.type === "AI_APICallError" && firstException.value) {
     event.fingerprint = ["AI_APICallError", firstException.value];
   }