{
  "schemaVersion": 1,
  "type": "resource",
  "id": "refero-styles",
  "evaluation": {
    "reviewedOn": "2026-10-19",
    "status": "checked",
    "modes": [
      "http",
      "browser"
    ],
    "summary": "The public Linear reference opened with color, typography, spacing and guideline sections. This is a usable style-reference browsing result; no downloaded DESIGN.md was executed.",
    "reportUrl": "/design-evaluations/resource-refero-styles.json",
    "identity": {
      "target": "https://styles.refero.design/",
      "version": "Unversioned public page observed on 2026-10-19",
      "integrity": "sha256:97ded592e5aa6d3d1a45a20b31ddcaf84f00df1d0e8261bd9bdda26e0e26fc96 — initial HTTP 200 response body only; not whole-application integrity."
    },
    "environment": [
      "Chromium 155.0.8059.82, 1365×900 desktop viewport.",
      "Separate fresh, ephemeral browser contexts for entry and interaction; no owner profile, credentials or stored session.",
      "Only GET/HEAD network requests allowed; forms, downloads, WebSockets and service workers blocked. Some analytics endpoints also blocked.",
      "Short bounded waits; no mobile, assistive-technology, cross-browser or performance certification."
    ],
    "tests": [
      {
        "name": "Public HTTP response",
        "mode": "http",
        "method": "Anonymous GET with redirects followed, response-body SHA-256 and selected security-header summaries; no cookies retained.",
        "result": "pass",
        "observation": "The standalone client received 200 at https://styles.refero.design/. This establishes response delivery only."
      },
      {
        "name": "Fresh browser entry",
        "mode": "browser",
        "method": "Open the catalog URL in a new anonymous Chromium context with read-only network guards and no inherited profile.",
        "result": "pass",
        "observation": "The document returned 200 and identified itself as “Website Styles & DESIGN.md Library | Refero Styles”. 42 image elements were present; no account was used."
      },
      {
        "name": "Observed public sample or navigation",
        "mode": "browser",
        "method": "Follow the observed Linear midnight precision instrument link to https://styles.refero.design/style/90ce5883-bb24-4466-93f7-801cd617b0d1.",
        "result": "pass",
        "observation": "The destination returned 200; title: “Linear design system | Refero Styles”. 3 page image elements had decoded during the bounded wait. This count is not a catalog size or performance benchmark."
      }
    ],
    "security": {
      "scope": "Passive inspection of the initial public document’s response headers and anonymous browser request hostnames, with read-only guards. No source exploitation, account access, dependency audit or private data.",
      "findings": [
        {
          "level": "info",
          "basis": "observed",
          "title": "Public response protections",
          "detail": "The initial browser page used HTTPS. Its response included HSTS. No enforcing Content-Security-Policy response header was observed. This records the sampled response only; meta policies, backend authorization and exploit resistance were not assessed."
        },
        {
          "level": "info",
          "basis": "observed",
          "title": "Request surface in the anonymous visit",
          "detail": "Refero Styles attempted requests to 3 additional hosts, including www.googletagmanager.com, images.refero.design, t0.gstatic.com. Host counts include requests stopped by the test guard; they do not establish what data a service retained."
        },
        {
          "level": "caution",
          "basis": "advice",
          "title": "Before using this reference",
          "detail": "Review the reference tokens against your own brand before using them in an agent prompt. The sample exposes visual choices, not the original product’s behavior."
        }
      ],
      "limits": [
        "No authentication, authorization, tenant separation, data retention or backend handling was tested.",
        "Header presence or absence is a sampled configuration observation, not a security certification or an exploit finding.",
        "4 blocked-request records were retained across entry and interaction checks. Guards may alter normal page behavior; the logs do not represent unrestricted traffic."
      ]
    },
    "practicalCaveats": [
      "Review the reference tokens against your own brand before using them in an agent prompt. The sample exposes visual choices, not the original product’s behavior.",
      "A reference brand’s identity is not permission to reproduce its logos, imagery or complete interface."
    ],
    "limits": [
      "DESIGN.md download completeness, extraction accuracy, account features and MCP access were not tested.",
      "Results describe the observed public pages and a bounded action, not the entire product or the referenced designs."
    ],
    "sources": [
      {
        "label": "Public resource entry",
        "url": "https://styles.refero.design/"
      },
      {
        "label": "Observed sample or category",
        "url": "https://styles.refero.design/style/90ce5883-bb24-4466-93f7-801cd617b0d1"
      }
    ]
  }
}