diff --git a/lib/entry-points.js b/lib/entry-points.js
index c79607d1c..7fdec233b 100644
--- a/lib/entry-points.js
+++ b/lib/entry-points.js
@@ -169562,6 +169562,16 @@ function wrapError(error3) {
 function getErrorMessage(error3) {
   return error3 instanceof Error ? error3.message : String(error3);
 }
+function isDiskConfigurationError(e) {
+  if (!(e instanceof Error)) {
+    return false;
+  }
+  return (
+    // out of disk space
+    e.message.includes("ENOSPC") || // access denied
+    e.message.includes("EACCES")
+  );
+}
 var ConfigurationError = class extends Error {
 };
 var HTTPError = class extends Error {
@@ -177004,16 +177014,6 @@ var CODEQL_NEXT_MINIMUM_VERSION = "2.21.3";
 var GHES_VERSION_MOST_RECENTLY_DEPRECATED = "3.17";
 var GHES_MOST_RECENT_DEPRECATION_DATE = "2026-09-24";
 var EXTRACTION_DEBUG_MODE_VERBOSITY = "progress++";
-function isDiskConfigurationError(e) {
-  if (!(e instanceof Error)) {
-    return false;
-  }
-  return (
-    // out of disk space
-    e.message.includes("ENOSPC") || // access denied
-    e.message.includes("EACCES")
-  );
-}
 async function setupCodeQL(toolsInput, apiDetails, tempDir, variant, defaultCliVersion, rawLanguages, otherLanguagePacksReason, useOverlayAwareDefaultCliVersion, features, logger2, checkVersion) {
   try {
     const {
diff --git a/src/codeql.ts b/src/codeql.ts
index a76e29727..706ca3210 100644
--- a/src/codeql.ts
+++ b/src/codeql.ts
@@ -19,6 +19,7 @@ import type { ActionConfig } from "./config/action-config";
 import { appendExtraQueryExclusions, type Config } from "./config-utils";
 import { DocUrl } from "./doc-url";
 import { EnvVar, getEnv, exportEnvVar } from "./environment";
+import { getErrorMessage, isDiskConfigurationError } from "./errors";
 import {
   CodeQLDefaultVersionInfo,
   Feature,
@@ -34,7 +35,9 @@ import { ToolsDownloadStatusReport } from "./tools-download";
 import { ToolsFeature, isSupportedToolsFeature } from "./tools-features";
 import { shouldEnableIndirectTracing } from "./tracer-config";
 import * as util from "./util";
-import { BuildMode, CleanupLevel, getErrorMessage } from "./util";
+import { BuildMode, CleanupLevel } from "./util";
+
+export { isDiskConfigurationError } from "./errors";
 
 type Options = Array<string | number | boolean>;
 
@@ -274,26 +277,6 @@ const GHES_MOST_RECENT_DEPRECATION_DATE = "2026-09-24";
 /** The CLI verbosity level to use for extraction in debug mode. */
 const EXTRACTION_DEBUG_MODE_VERBOSITY = "progress++";
 
-/**
- * Decides whether `e` is a disk-related error outside of our control
- * that should be classified as a `ConfigurationError`.
- *
- * @param e The error to check.
- * @returns True if the error should be treated as a `ConfigurationError` or false if not.
- */
-export function isDiskConfigurationError(e: unknown): boolean {
-  if (!(e instanceof Error)) {
-    return false;
-  }
-
-  return (
-    // out of disk space
-    e.message.includes("ENOSPC") ||
-    // access denied
-    e.message.includes("EACCES")
-  );
-}
-
 /**
  * Set up CodeQL CLI access.
  *
diff --git a/src/errors/index.ts b/src/errors/index.ts
index b1281f3af..24ce40d18 100644
--- a/src/errors/index.ts
+++ b/src/errors/index.ts
@@ -18,6 +18,26 @@ export function getErrorMessage(error: unknown): string {
   return error instanceof Error ? error.message : String(error);
 }
 
+/**
+ * Decides whether `e` is a disk-related error outside of our control
+ * that should be classified as a `ConfigurationError`.
+ *
+ * @param e The error to check.
+ * @returns True if the error should be treated as a `ConfigurationError` or false if not.
+ */
+export function isDiskConfigurationError(e: unknown): boolean {
+  if (!(e instanceof Error)) {
+    return false;
+  }
+
+  return (
+    // out of disk space
+    e.message.includes("ENOSPC") ||
+    // access denied
+    e.message.includes("EACCES")
+  );
+}
+
 /**
  * An Error class that indicates an error that occurred due to
  * a misconfiguration of the action or the CodeQL CLI.