{
  "context": "Tests whether the agent adds UseStatusCodePages to handle non-exception HTTP errors (routing 404s, 405s) and returns structured ProblemDetails responses for them, with correct Content-Type and pipeline ordering.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "UseStatusCodePages present",
      "description": "Program.cs calls app.UseStatusCodePages() or app.UseStatusCodePages(...) — the middleware is explicitly registered",
      "max_score": 18
    },
    {
      "name": "UseExceptionHandler present",
      "description": "Program.cs also calls app.UseExceptionHandler() (the two middleware work together)",
      "max_score": 10
    },
    {
      "name": "Exception handler before routing",
      "description": "app.UseExceptionHandler() appears before app.MapControllers() / app.UseRouting() in Program.cs",
      "max_score": 10
    },
    {
      "name": "UseStatusCodePages before routing",
      "description": "app.UseStatusCodePages() appears before app.MapControllers() / app.UseRouting() in Program.cs",
      "max_score": 10
    },
    {
      "name": "pipeline_notes explains routing misses",
      "description": "pipeline_notes.md explicitly mentions that routing 404s (requests to undefined URLs) are handled by UseStatusCodePages, not by the exception handler",
      "max_score": 15
    },
    {
      "name": "pipeline_notes explains middleware ordering",
      "description": "pipeline_notes.md describes or references the order in which the error-handling middleware components are registered",
      "max_score": 12
    },
    {
      "name": "AddProblemDetails registered",
      "description": "Program.cs calls builder.Services.AddProblemDetails() so ASP.NET Core can produce ProblemDetails for status code responses",
      "max_score": 15
    },
    {
      "name": "UseStatusCodePages with ProblemDetails format",
      "description": "The UseStatusCodePages configuration (or AddProblemDetails setup) produces a structured response rather than plain text — either by using the default ProblemDetails integration or by explicitly configuring a JSON response body",
      "max_score": 10
    }
  ]
}