Validate OpenAPI Artifact

Validate a minimal OpenAPI artifact and prepare Spec/Evals handoff evidence.

Instantiate locally
openapi.json
{
  "openapi": "3.1.0",
  "info": {
    "title": "Sandbox Fixture",
    "version": "1.0.0"
  },
  "paths": {
    "/api/health": {
      "get": {
        "responses": {
          "200": {
            "description": "OK"
          }
        }
      }
    }
  }
}
Help