StackGen Cursor Plugin

The StackGen plugin lets you create and provision compliant infrastructure based on your organizational governance. It also helps you manage drift in your cloud environments across AWS, Azure, and GCP — directly from Cursor using natural language in agent chat.

What you need

• A StackGen account
• A StackGen Personal Access Token (PAT) — create one in Settings → API Keys → Create API Key
• Cursor IDE (v2.6.0+)

Installing the plugin

If you already have the StackGen MCP server registered separately in .cursor/mcp.json, disable or remove it first to avoid duplicate tool entries.

Option A — Cursor Plugin Marketplace

1. Open Cursor Settings → Tools & MCP → Plugins.
2. Search for StackGen and click Install.

Option B — Install from GitHub

1. Open the Command Palette: ⌘⇧P (Mac) / Ctrl+Shift+P (Windows/Linux).
2. Run "Cursor Settings: Tools & MCP" → go to Plugins.
3. Click Install from URL and enter:

   https://github.com/stackgenhq/cursor-plugin
   

4. Cursor will pull the plugin and register it locally.

First-time setup

After installing, open any Cursor agent chat and run:

/stackgen-mcp-setup

The agent will prompt you for:

Value	Where to find it
StackGen base URL	Your workspace URL, e.g. https://cloud.stackgen.com or your enterprise domain
Personal Access Token	StackGen → Settings → API Keys → Create API Key

The agent writes both values into the plugin's local mcp.json. No environment variables or manual file edits needed.

Then reload Cursor: ⌘⇧P → Reload Window

Cursor starts MCP servers once at launch. The reload is required after setup so the stackgen-admin and stackgen-user servers are picked up — this is a one-time step.

Prompt examples

Once connected, use plain English in any agent chat:

Create an infrastructure for my service.

Add my organizational policies to the above created IaC.

What are the violations of my appStack?

Can you deploy to my cloud environment?

For appStack creation from your repo, the agent will inspect the codebase, ask for cloud provider, region, and project, then proceed after you confirm. You can also run /stackgen-create-appstack to start that flow.

The plugin connects through two MCP servers automatically registered by the skill:

Server	Used for
stackgen-admin	Projects, policies, custom modules, secrets
stackgen-user	AppStacks, topology, snapshots, infrastructure, drift

PAT scopes

Scope	What it unlocks
Read	Query projects, appStacks, topology, snapshots
Read + Write	All of the above plus create infrastructure, manage incidents, trigger deployments

Credentials are stored only in the plugin's local mcp.json and are never sent to the AI model provider.

Commands

Command	What it does
/stackgen-mcp-setup	First-time setup — set your StackGen URL and PAT
/stackgen-config	Change URL, rotate PAT, or troubleshoot (after setup)
/stackgen-create-appstack	Analyze this repo and create an appStack (asks cloud, region, project first)

Troubleshooting

Symptom	Fix
Tools not appearing after install	Run /stackgen-mcp-setup, then reload Cursor (⌘⇧P → Reload Window)
401 errors	Run /stackgen-config and rotate your PAT
Duplicate stackgen tools	Remove any stackgen-* entries from .cursor/mcp.json and reload

Support

• StackGen Documentation
• StackGen MCP Server Documentation
• support@stackgen.com