# Agents Plugins > 🤖 Drive your Coherent Gameface game's UI with a Claude/Codex plugin with an MCP server and skills - **Type:** MCP server - **Install:** `agentstack add mcp-citiesskylinesmodding-agents-plugins` - **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior - **Seller:** [CitiesSkylinesModding](https://agentstack.voostack.com/s/citiesskylinesmodding) - **Installs:** 0 - **Category:** [Integrations](https://agentstack.voostack.com/c/integrations) - **Latest version:** 0.1.0 - **License:** MIT - **Upstream author:** [CitiesSkylinesModding](https://github.com/CitiesSkylinesModding) - **Source:** https://github.com/CitiesSkylinesModding/agents-plugins ## Install ```sh agentstack add mcp-citiesskylinesmodding-agents-plugins ``` Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent. ## About # 🕹️ Agents Plugins **The CS Modding marketplace (`csmodding`) of agent plugins for Claude Code and OpenAI Codex CLI.** Give your coding agent **eyes and hands inside a running game**: its HTML UI, and its C#/ECS internals. Generic tooling, developed and verified against Cities: Skylines II. [](https://github.com/CitiesSkylinesModding/agents-plugins/actions/workflows/ci.yml) [](https://www.npmjs.com/package/@csmodding/gameface-devtools-mcp) [](LICENSE) [Plugins](#plugins) · [Install](#install) · [Development](#development) --- ## Plugins | Plugin | Give your agent… | Runs on | Docs | | --------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 🖼️ **[coherent-gameface](plugins/coherent-gameface/README.md)** | Eyes and hands in any **Coherent Gameface** (Cohtml) game UI over CDP: evaluate JS, screenshot, drive the DOM, console, JS breakpoints. Plus an engine skill and a driving skill. | Node 22.4+ | [README](plugins/coherent-gameface/README.md) · [Tools reference](plugins/coherent-gameface/mcp/README.md) · [npm](https://www.npmjs.com/package/@csmodding/gameface-devtools-mcp) | | 🔬 **[unity-devtools](plugins/unity-devtools/README.md)** | A live line into a **Unity Mono dev build** over the Mono Soft Debugger: reflect types, invoke C#, read & write ECS state. No code injection. Plus a driving skill. | .NET 10 (Windows) | [README](plugins/unity-devtools/README.md) · [Tools reference](plugins/unity-devtools/README.md#tools) | Both plugins are **generic**: they target any game or application embedding the technology, with Cities: Skylines II as the reference target where everything is field-verified. > [!TIP] > **Not using Claude Code or Codex CLI?** The Gameface MCP server is also published on npm as > [`@csmodding/gameface-devtools-mcp`](https://www.npmjs.com/package/@csmodding/gameface-devtools-mcp) > and works with any MCP client (Cursor, Gemini CLI, VS Code, …). ## Install Add the marketplace once, then install the plugin(s) you want. Each plugin autoloads its MCP server from a committed artifact: no installation step, works offline, version-locked to the plugin. ### Claude Code ``` /plugin marketplace add CitiesSkylinesModding/agents-plugins /plugin install coherent-gameface@csmodding /plugin install unity-devtools@csmodding ``` Or from your terminal, `claude plugin marketplace add …` / `claude plugin install …` with the same arguments. ### Codex CLI ```sh codex plugin marketplace add CitiesSkylinesModding/agents-plugins codex plugin add coherent-gameface@csmodding codex plugin add unity-devtools@csmodding ``` Then run `/mcp` to confirm the servers connected. Each plugin's README covers its requirements, configuration and troubleshooting. ## Development Uses `mise` + `bun` (never `npx`). The repository is a marketplace: plugin sources live under `plugins//`, and everything a plugin ships lives inside its directory. The root is a bun workspace carrying the lint/format tooling (oxlint, oxfmt) and the lefthook git hooks; the Gameface MCP server is the `plugins/coherent-gameface/mcp/` workspace package, and the Unity MCP server is a .NET solution (`agents-plugins.slnx`). ```sh bun install # install all workspace deps (also installs the git hooks) mise check # verify (read-only): type-check, lint, format mise fix # auto-fix lint + format in place mise build # rebuild every shipped artifact (commit the results) ``` Run `mise tasks` for the full list, and see [`AGENTS.md`](AGENTS.md) (plus each plugin's own `AGENTS.md`) for the architecture notes. ## Source & license This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code. - **Author:** [CitiesSkylinesModding](https://github.com/CitiesSkylinesModding) - **Source:** [CitiesSkylinesModding/agents-plugins](https://github.com/CitiesSkylinesModding/agents-plugins) - **License:** MIT Install and usage instructions live in the source repository linked above. ## Pricing - **Free** — Free ## Security capabilities Automated source analysis of v0.1.0 — what this tool can access: - **Network access:** no - **Filesystem access:** no - **Shell / process execution:** no - **Environment & secrets:** no - **Dynamic code execution:** no *"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.* ## Versions - **0.1.0** — security scan: passed — Imported from the upstream source. ## Links - Listing page: https://agentstack.voostack.com/l/mcp-citiesskylinesmodding-agents-plugins - Seller: https://agentstack.voostack.com/s/citiesskylinesmodding - Browse the marketplace: https://agentstack.voostack.com/browse --- Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.