From e07ea013bd13b5c183d3314c6070fab61daec759 Mon Sep 17 00:00:00 2001
From: YutaSaito <36355491+uc4w6c@users.noreply.github.com>
Date: Tue, 29 Jul 2025 09:39:52 +0900
Subject: [PATCH] feat: add GITHUB_HOST to github-mcp-server for GitHub
 Enterprise Server (#343)

---
 src/mcp/install-mcp-server.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/mcp/install-mcp-server.ts b/src/mcp/install-mcp-server.ts
index 35bb94c..c8cb125 100644
--- a/src/mcp/install-mcp-server.ts
+++ b/src/mcp/install-mcp-server.ts
@@ -1,5 +1,5 @@
 import * as core from "@actions/core";
-import { GITHUB_API_URL } from "../github/api/config";
+import { GITHUB_API_URL, GITHUB_SERVER_URL } from "../github/api/config";
 import type { ParsedGitHubContext } from "../github/context";
 import { Octokit } from "@octokit/rest";
 
@@ -157,9 +157,12 @@ export async function prepareMcpConfig(
           "-e",
           "GITHUB_PERSONAL_ACCESS_TOKEN",
           "ghcr.io/github/github-mcp-server:sha-efef8ae", // https://github.com/github/github-mcp-server/releases/tag/v0.9.0
+          "-e",
+          "GITHUB_HOST",
         ],
         env: {
           GITHUB_PERSONAL_ACCESS_TOKEN: githubToken,
+          GITHUB_HOST: GITHUB_SERVER_URL,
         },
       };
     }