Agent skill · nvidia
rtx-remix-modding
Mod or remaster a game with RTX Remix - open and edit projects, swap textures and models. Connect to the Remix Toolkit App via MCP. Not for non-Remix game interaction.
What it needs
About 7k tokens when loaded.
What this skill does
RTX Remix Modding When to Use This Skill Use this when the user is modding or remastering a classic DirectX 8/9 game with NVIDIA RTX Remix and a Remix MCP server is available. It covers opening and closing projects, working with the project's USD layers, swapping the model and texture assets bound to captured prims, and reading the stage. It does not cover installing Remix, capturing a game, or authoring new geometry. Connecting to Remix Requires RTX Remix 1.6.0+ or 1.6.0-dev; ask the user to upgrade if older. Missing remix tools? Ask the user to start Toolkit, windowed or via lightspeed.app.trex.stagecraft.headless.bat, and connect to http://127.0.0.1:18014/mcp/. Keep the trailing slash. Both modes fall back within 18014–18019; all busy means startup fails. Windows discovery record, published by Remix: %LOCALAPPDATA%\NVIDIA\RTX Remix\mcp.json. Read mcpendpoint for the latest instance. Contains addresses, ports, version, and PID; removed on clean shutdown. No record? Use endpoint= from the Toolkit log's MCPPORTFALLBACK warning. Wait for matching SERVICEREADY service=mcp. Client URLs need manual updating. Instructions Before using the MCP tools to replace models or add an asset reference, read references/tool-mode.md and follow the relevant recipe. Your tool list already carries every tool and its schema. What it does not carry is the order: 1. Open or confirm the project. 2. Set the edit target before writing. A write lands in whichever layer is current, and the wrong layer is the failure that looks like success. 3. Find the prims — selection=true acts on the viewport selection. 4. Write. A file has to be ingested before it can be referenced. 5. remixsavelayer, then read back what you changed. Troubleshooting Before planning, check for remix tools; if absent, say the server is unavailable and relay the setup instructions in "Connecting to Remix". Never substitute a workaround for the missing tools. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills nvidia/rtx-remix-modding