StackDetection

Fields

Field	Type	Description
summary *	string
has_manifest	boolean
services *	array of object
databases	array of DatabaseEngine
variables	array of object	Detected from .env.example and code.
suggested_manifest	string

* always present

Example

{
  "summary": "We'll build a Next.js app with Node 22 and give you a Postgres database.",
  "has_manifest": false,
  "services": [
    {
      "name": "string",
      "root": "string",
      "builder": "railpack",
      "language": "string",
      "framework": "string",
      "start": "string",
      "port": 1
    }
  ],
  "databases": [
    "postgres"
  ],
  "variables": [
    {
      "name": "string",
      "example": "string",
      "likely_secret": false
    }
  ],
  "suggested_manifest": "string"
}

Used by

• Detect the stack of a repository and suggest a guv.yaml