{
  "context": "Tests Hono best practices with nested routes (products/:id/adjust, products/:id/history), business logic validation (stock cannot go below zero), and Bun runtime. The task does not mention validation hooks, error handling patterns, or middleware.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "zValidator with hook callback",
      "description": "zValidator includes a hook callback returning structured JSON errors on validation failure",
      "max_score": 15
    },
    {
      "name": "c.req.valid() for validated data",
      "description": "Handlers use c.req.valid('json') and c.req.valid('param') -- not c.req.json() or c.req.param() after zValidator",
      "max_score": 10
    },
    {
      "name": "Global onError handler",
      "description": "app.onError registered with structured JSON responses and no stack trace leaks",
      "max_score": 12
    },
    {
      "name": "notFound handler",
      "description": "app.notFound returns JSON 404",
      "max_score": 7
    },
    {
      "name": "Bun entry point",
      "description": "Entry point uses export default { fetch: app.fetch, port } -- not @hono/node-server",
      "max_score": 10
    },
    {
      "name": "Built-in middleware",
      "description": "logger() and secureHeaders() registered",
      "max_score": 8
    },
    {
      "name": "createMiddleware for custom middleware",
      "description": "If custom middleware is written, it uses createMiddleware<Env>() from 'hono/factory' for type safety",
      "max_score": 8
    },
    {
      "name": "Route grouping",
      "description": "Product and adjustment routes organized with app.route()",
      "max_score": 7
    },
    {
      "name": "Env generic declared",
      "description": "Hono app uses typed Env generic",
      "max_score": 8
    },
    {
      "name": "Business logic error as HTTPException",
      "description": "Business rule violations (stock below zero, duplicate SKU) are thrown as HTTPException subclasses or handled with appropriate status codes (409, 422) -- not returned as 200 or 500",
      "max_score": 8
    },
    {
      "name": "Consistent error shape",
      "description": "All errors use { error: { code, message } } shape",
      "max_score": 7
    }
  ]
}