diff --git a/languageserver/package.json b/languageserver/package.json
index c72deec..66f33cd 100644
--- a/languageserver/package.json
+++ b/languageserver/package.json
@@ -43,6 +43,7 @@
     "@github/actions-languageservice": "^0.1.167",
     "@github/actions-workflow-parser": "^0.1.167",
     "@octokit/rest": "^19.0.7",
+    "@octokit/types": "^9.0.0",
     "vscode-languageserver": "^8.0.2",
     "vscode-languageserver-textdocument": "^1.0.7",
     "yaml": "^2.1.3"
@@ -62,4 +63,4 @@
     "ts-jest": "^29.0.3",
     "typescript": "^4.8.4"
   }
-}
\ No newline at end of file
+}
diff --git a/languageserver/src/utils/error.ts b/languageserver/src/utils/error.ts
new file mode 100644
index 0000000..843eaad
--- /dev/null
+++ b/languageserver/src/utils/error.ts
@@ -0,0 +1,27 @@
+import {RequestError} from "@octokit/types";
+
+export function errorMessage(error: unknown): string {
+  if (error instanceof Error) {
+    return error.message;
+  }
+  if (typeof error === "string") {
+    return error;
+  }
+
+  if ("name" in (error as RequestError)) {
+    return (error as RequestError).name;
+  }
+
+  const status = errorStatus(error);
+  if (status) {
+    return `HTTP ${status}`;
+  }
+
+  return "Unknown error";
+}
+
+export function errorStatus(error: unknown): number | undefined {
+  if ("status" in (error as RequestError)) {
+    return (error as RequestError).status;
+  }
+}
diff --git a/package-lock.json b/package-lock.json
index aea6511..097d222 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -157,6 +157,7 @@
         "@github/actions-languageservice": "^0.1.167",
         "@github/actions-workflow-parser": "^0.1.167",
         "@octokit/rest": "^19.0.7",
+        "@octokit/types": "^9.0.0",
         "vscode-languageserver": "^8.0.2",
         "vscode-languageserver-textdocument": "^1.0.7",
         "yaml": "^2.1.3"
@@ -174,6 +175,19 @@
         "node": ">= 16.15"
       }
     },
+    "languageserver/node_modules/@octokit/openapi-types": {
+      "version": "16.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-16.0.0.tgz",
+      "integrity": "sha512-JbFWOqTJVLHZSUUoF4FzAZKYtqdxWu9Z5m2QQnOyEa04fOFljvyh7D3GYKbfuaSWisqehImiVIMG4eyJeP5VEA=="
+    },
+    "languageserver/node_modules/@octokit/types": {
+      "version": "9.0.0",
+      "resolved": "https://registry.npmjs.org/@octokit/types/-/types-9.0.0.tgz",
+      "integrity": "sha512-LUewfj94xCMH2rbD5YJ+6AQ4AVjFYTgpp6rboWM5T7N3IsIF65SBEOVcYMGAEzO/kKNiNaW4LoWtoThOhH06gw==",
+      "dependencies": {
+        "@octokit/openapi-types": "^16.0.0"
+      }
+    },
     "languageservice": {
       "name": "@github/actions-languageservice",
       "version": "0.1.167",
@@ -14830,6 +14844,7 @@
         "@github/actions-languageservice": "^0.1.167",
         "@github/actions-workflow-parser": "^0.1.167",
         "@octokit/rest": "^19.0.7",
+        "@octokit/types": "*",
         "@types/jest": "^29.0.3",
         "fetch-mock": "^9.11.0",
         "jest": "^29.0.3",
@@ -14840,6 +14855,21 @@
         "vscode-languageserver": "^8.0.2",
         "vscode-languageserver-textdocument": "^1.0.7",
         "yaml": "^2.1.3"
+      },
+      "dependencies": {
+        "@octokit/openapi-types": {
+          "version": "16.0.0",
+          "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-16.0.0.tgz",
+          "integrity": "sha512-JbFWOqTJVLHZSUUoF4FzAZKYtqdxWu9Z5m2QQnOyEa04fOFljvyh7D3GYKbfuaSWisqehImiVIMG4eyJeP5VEA=="
+        },
+        "@octokit/types": {
+          "version": "9.0.0",
+          "resolved": "https://registry.npmjs.org/@octokit/types/-/types-9.0.0.tgz",
+          "integrity": "sha512-LUewfj94xCMH2rbD5YJ+6AQ4AVjFYTgpp6rboWM5T7N3IsIF65SBEOVcYMGAEzO/kKNiNaW4LoWtoThOhH06gw==",
+          "requires": {
+            "@octokit/openapi-types": "^16.0.0"
+          }
+        }
       }
     },
     "@github/actions-languageservice": {