Update npx args to @tmhs/steam-mcp, add partner API note to leaderboard skill

Made-with: Cursor

Author: TMHSDigital

README.md

@@ -67,7 +67,7 @@ Add the Steam MCP server to your Cursor MCP configuration (`.cursor/mcp.json`):
   "mcpServers": {
     "steam": {
       "command": "npx",
-      "args": ["-y", "steam-mcp"],
+      "args": ["-y", "@tmhs/steam-mcp"],
       "env": {
         "STEAM_API_KEY": "your_key_here"
       }

skills/steam-leaderboards/SKILL.md

@@ -147,6 +147,8 @@ When the [Steam MCP server](https://github.com/TMHSDigital/steam-mcp) is configu
 
 The `datarequest` param controls the view: `0` = Global, `1` = Around user, `2` = Friends. When using `1` or `2`, provide the `steamid` param.
 
+> **Note:** `steam.getLeaderboardEntries` calls the partner API (`partner.steam-api.com`), which requires a publisher API key with your server's IP allowlisted in the Steamworks partner site. A standard user API key from `steamcommunity.com/dev/apikey` will return HTTP 403. This is a Valve restriction, not an MCP server issue.
+
 The SDK integration for creating leaderboards, uploading scores, and downloading entries in-game remains documentation-only.
 
 If the MCP server is not available, fall back to the `curl`-based workflow above.