neostack-connect

NeoStack Plugins

Marketplace of plugins for Claude Code and Codex that connect to a running NeoStackAI Unreal Engine session.

Install

Claude Code

From a terminal inside your UE project directory:

claude

Then inside Claude Code:

/plugin marketplace add betidestu/neostack-plugins
/plugin install neostack-connect@neostack
/reload-plugins

Verify with /mcp — you should see neostack connected. No platform-specific setup needed.

Codex CLI

codex plugin marketplace add betidestu/neostack-plugins
codex

Inside Codex, open /plugins, find neostack-connect, press Space to enable.

macOS / Linux only: run the one-time setup so Codex picks the right binary for your OS:

~/.codex/plugins/neostack-connect/setup.sh

(Windows works out of the box.)

What's here

• plugins/neostack-connect/ — the only plugin. Spawns a Go-compiled stdio MCP proxy (~6 MB per platform) that auto-discovers your running editor by walking up from cwd to find <project>/Saved/NeoStackAI/runtime.json, then bridges every tool call to the editor's HTTP MCP server.

Layout

.
├── .claude-plugin/marketplace.json     # Claude Code reads this
├── .agents/plugins/marketplace.json    # Codex reads this
└── plugins/neostack-connect/
    ├── .claude-plugin/plugin.json
    ├── .codex-plugin/plugin.json
    ├── .mcp.json                       # Claude Code uses ${CLAUDE_PLUGIN_ROOT}
    ├── codex*.mcp.json                 # one per OS (Codex doesn't substitute env vars)
    ├── setup.sh / setup.cmd            # picks the right Codex config per OS
    ├── bin/<platform>/neostack-mcp-proxy[.exe]
    └── proxy/                          # Go source — `bash build.sh` to recompile

Building from source

Requires Go 1.23+:

cd plugins/neostack-connect/proxy
bash build.sh             # all platforms
bash build.sh win64       # one platform

Source repo

Edits land here, not in the editor's source repo. The editor (private) and the marketplace (public) are decoupled — schema changes coordinate via the runtime.json schemaVersion field, currently 2.