エクスクルーシブ
Odd One Out <mv-odd-one-out>
本来そろっているはずの項目の集合から、外れ値を自動的に見つけ出します。サーバー、コンテナ、環境間の設定のずれ、商品バリエーション間の価格や在庫の不整合、同じ役割の同僚と権限が異なる 1 人の従業員、設定が食い違っている 1 つのリージョンなど。
文化的リファレンス
セサミストリート、Children's Television Workshop（Joan Ganz Cooney、Lloyd Morrisett）（1969年、シリーズ）。おなじみのコーナーでは 4 つのものが並べて示され、答えが明かされる前に、視聴者は仲間外れの一つを見つけなければなりません。UI では、同一であるべき項目群をフィールドごとにその多数派と比較し、パターンを崩す値をその場で指摘し、数え、説明したうえで、揃え直す手段を提供します。
仕組み
本来同じであるべき項目群から外れ値を自動で見つけます：サーバー、コンテナ、環境間の設定のずれ、商品のバリエーション間での価格や在庫の不整合、同じ役割の同僚と権限が異なる一人の従業員、設定が食い違う一つのリージョンなど。自前のカードやテーブル行をラップする（項目には data-item、値には data-field="key"）か、items 配列を渡せば、テーブル（1 行または 1 列に 1 項目）またはカードとして描画します。フィールドごとに多数派の値（完全一致、大文字小文字やアクセントを区別しない比較、独自の normalize や comparator）を求め、数値の場合はロバストな MAD 検定、または絶対値／% の許容幅を使って中央値を求めます。目立つ値はその場でマークされます：リング、色付きのセル、どう違うかをグリフで示すバッジ（≠ 異なる、▲ 高い、▼ 低い、∅ 欠損、+ ここだけ）と「differs from 7 of 8」。すべての項目で値が異なるフィールド（ホスト名、IP）は対象外とし、明確な多数派がないフィールドは別に一覧化し、他の大半が持つフィールドを欠く項目にもフラグを立てます。サマリーは外れた項目ごとに（「web-04 differs on 3 fields: TLS min version, Max body size, Region」）外れた値を多数派の値と並べて示し、ジャンプリンク、外れ値間を移動する N / P ナビゲーション、値ごとの任意の「Align」アクションを備えます。このアクションはキャンセル可能な mv-align イベントを経由し、修正はアプリ側で適用します。「Differences only」スイッチは一致しているものをすべて薄く表示します（描画ビューでは一致するフィールドが折りたたまれます）。マークアップ、入力、データが変わるとリアルタイムで再チェックし、控えめに読み上げます。
| カテゴリー | データ表示 |
|---|---|
| タイプ | Web Component（<mv-odd-one-out>） |
| ステータス | 安定版 |
| キット | アラート疲れのないモニタリング |
| 同時にインストールされるもの | button, checkbox, switch |
| Keywords | exclusive, culture, outlier, anomaly, drift, config-drift, consistency, majority, median, mad, compare, diff, audit, access-review, permissions, variants, inventory, fleet, devops, data-quality |
When to use
- A fleet of servers, containers or feature-flag environments must share one configuration and drift has to jump out
- A product's variants (sizes, colors, bundles) should share price, weight or tax codes except for the one mistyped
- An access review compares people in the same role and must surface the one with an extra or missing permission
- A small set of regions, stores or tenants should be configured alike and a reviewer wants the exceptions first
Avoid when
- Two or three documents of different kinds must be reconciled field by field against a reference, with a verdict → use Cross-Check instead
- Several sources describe the same event over time and the disagreements are about what happened when → use Accounts instead
- Thousands of records are involved: compute outliers server-side and show them in a paginated table → use Data table instead
インストール
node scripts/add.mjs odd-one-out --out ./src/marvelousMarvelous UI の MCP サーバーを使う AI エージェント：install_components({ slugs: ["odd-one-out"], target_dir: "<absolute path>/src/marvelous", framework: "react" })。
コピーされるファイル（依存関係を含む）：tokens/tokens.css, core/base.css, components/button/button.css, components/checkbox/checkbox.css, components/switch/switch.css, core/dom.js, core/element.js, core/motion.js, components/odd-one-out/odd-one-out.js, components/odd-one-out/odd-one-out.css。
使い方
クイックスタート、動作する最小限のマークアップ：
<mv-odd-one-out item-key="host">
<p data-item="web-01"><b data-field="host">web-01</b> <span data-field="tls">TLS 1.3</span></p>
<p data-item="web-02"><b data-field="host">web-02</b> <span data-field="tls">TLS 1.2</span></p>
<p data-item="web-03"><b data-field="host">web-03</b> <span data-field="tls">TLS 1.3</span></p>
</mv-odd-one-out>基本となるマークアップです。ここから属性、data-*、CSS 変数でカスタマイズしてください：
<div id="ooo-demo" style="width:min(100%,74rem);margin-inline:auto">
<style>
#ooo-demo { display:grid; grid-template-columns:minmax(0,1fr); gap:1rem }
#ooo-demo .ooo-top { display:flex; align-items:flex-end; justify-content:space-between; gap:.75rem 1.5rem; flex-wrap:wrap }
#ooo-demo .ooo-top h3 { margin:0; font-size:1.125rem; letter-spacing:-.01em }
#ooo-demo .ooo-top p { margin:.25rem 0 0; color:var(--mv-fg-muted); font-size:.8125rem }
#ooo-demo .ooo-panel[hidden] { display:none }
#ooo-demo .ooo-fleet { overflow:auto; border:1px solid var(--mv-border); border-radius:var(--mv-radius-xl); background:var(--mv-surface); box-shadow:var(--mv-shadow-xs) }
#ooo-demo .ooo-fleet table { width:100%; border-collapse:separate; border-spacing:0; font-size:.8125rem; font-variant-numeric:tabular-nums }
#ooo-demo .ooo-fleet th, #ooo-demo .ooo-fleet td { padding:.5625rem .75rem; border-bottom:1px solid var(--mv-border); text-align:start; white-space:nowrap }
#ooo-demo .ooo-fleet tbody tr:last-child > * { border-bottom:0 }
#ooo-demo .ooo-fleet thead th { background:var(--mv-bg-subtle); color:var(--mv-fg-muted); font-size:.6875rem; font-weight:600; letter-spacing:.04em; text-transform:uppercase }
#ooo-demo .ooo-fleet td:first-child { font-family:var(--mv-font-mono); font-weight:600 }
#ooo-demo .ooo-fleet .ooo-dot { display:inline-block; width:.5rem; height:.5rem; margin-inline-end:.5rem; border-radius:50%; background:var(--mv-success); vertical-align:.05em }
#ooo-demo .ooo-controls { display:flex; align-items:center; gap:.75rem 1rem; flex-wrap:wrap; padding:.75rem 1rem; border:1px solid var(--mv-border); border-radius:var(--mv-radius-xl); background:var(--mv-bg-subtle) }
#ooo-demo .ooo-controls p { flex:1 1 18rem; margin:0; color:var(--mv-fg-muted); font-size:.8125rem }
#ooo-demo .ooo-log { flex:1 1 100%; min-height:1.1rem; margin:0; color:var(--mv-fg-subtle); font:.75rem/1.4 var(--mv-font-mono); overflow:hidden; text-overflow:ellipsis; white-space:nowrap }
</style>
<div class="ooo-top">
<div>
<h3 id="ooo-title">Production web tier · 8 hosts</h3>
<p id="ooo-sub">Every host should run the same edge configuration. Press N / P to walk through what differs.</p>
</div>
<mv-segmented id="ooo-scenario" value="fleet" label="Scenario">
<button value="fleet">Server fleet</button>
<button value="variants">Product variants</button>
<button value="access">Access review</button>
</mv-segmented>
</div>
<!-- Markup mode: the app's own table, rows marked with data-item, cells with data-field -->
<section class="ooo-panel" data-panel="fleet">
<mv-odd-one-out id="ooo-fleet" item-key="host" alignable label="Production web tier">
<div class="ooo-fleet">
<table>
<thead>
<tr>
<th data-field="host">Host</th><th data-field="image">Image</th><th data-field="tls">TLS min</th><th data-field="body">Max body</th>
<th data-field="workers">Workers</th><th data-field="keepalive">Keepalive</th><th data-field="gzip">Gzip</th><th data-field="region">Region</th><th data-field="p95">p95 latency</th>
</tr>
</thead>
<tbody>
<tr data-item="web-01"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-01</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">12 ms</td></tr>
<tr data-item="web-02"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-02</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive" id="ooo-keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">14 ms</td></tr>
<tr data-item="web-03"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-03</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">11 ms</td></tr>
<tr data-item="web-04"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-04</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.2</td><td data-field="body">1m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-west-2</td><td data-field="p95">13 ms</td></tr>
<tr data-item="web-05"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-05</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">12 ms</td></tr>
<tr data-item="web-06"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-06</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">15 ms</td></tr>
<tr data-item="web-07"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-07</td><td data-field="image">nginx 1.27.1</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">48 ms</td></tr>
<tr data-item="web-08"><td data-field="host"><span class="ooo-dot" aria-hidden="true"></span>web-08</td><td data-field="image">nginx 1.27.2</td><td data-field="tls">TLS 1.3</td><td data-field="body">10m</td><td data-field="workers">4096</td><td data-field="keepalive">65s</td><td data-field="gzip">on</td><td data-field="region">us-east-1</td><td data-field="p95">13 ms</td></tr>
</tbody>
</table>
</div>
</mv-odd-one-out>
</section>
<!-- Data mode, cards: one product's variants -->
<section class="ooo-panel" data-panel="variants" hidden>
<mv-odd-one-out id="ooo-variants" item-key="variant" layout="cards" alignable label="Ridge Shell Jacket variants"></mv-odd-one-out>
</section>
<!-- Data mode, one column per person: peers in the same role -->
<section class="ooo-panel" data-panel="access" hidden>
<mv-odd-one-out id="ooo-access" item-key="name" layout="columns" alignable label="Support engineer, tier 2 permissions"></mv-odd-one-out>
</section>
<div class="ooo-controls">
<p id="ooo-hint">Align asks the app to apply the majority value; the check re-runs on its own when the table changes.</p>
<button type="button" class="mv-button" data-variant="outline" data-size="sm" id="ooo-drift">Simulate a config push on web-02</button>
<button type="button" class="mv-button" data-variant="ghost" data-size="sm" id="ooo-reset">Reset</button>
<p class="ooo-log" id="ooo-log" aria-live="off"></p>
</div>
<script type="module">
const root = document.getElementById("ooo-demo");
const fleet = document.getElementById("ooo-fleet");
const variants = document.getElementById("ooo-variants");
const access = document.getElementById("ooo-access");
const log = document.getElementById("ooo-log");
const say = (text) => { log.textContent = `${new Date().toLocaleTimeString("en-US", { hour: "numeric", minute: "2-digit", second: "2-digit" })} · ${text}`; };
const fleetMarkup = fleet.querySelector("tbody").cloneNode(true);
const variantData = () => [
{ variant: "Slate · XS", sku: "RSJ-SL-XS", price: "$189.00", weight: "310 g", material: "Recycled nylon", hs: "6201.40", rating: "20,000 mm", care: "Machine wash 30°C" },
{ variant: "Slate · S", sku: "RSJ-SL-S", price: "$189.00", weight: "325 g", material: "Recycled nylon", hs: "6201.40", rating: "20,000 mm", care: "Machine wash 30°C" },
{ variant: "Slate · M", sku: "RSJ-SL-M", price: "$189.00", weight: "340 g", material: "Recycled Nylon", hs: "6201.40", rating: "20,000 mm", care: "Machine wash 30°C" },
{ variant: "Slate · L", sku: "RSJ-SL-L", price: "$18.90", weight: "355 g", material: "Recycled nylon", hs: "6201.40", rating: "20,000 mm", care: "Machine wash 30°C" },
{ variant: "Slate · XL", sku: "RSJ-SL-XL", price: "$189.00", weight: "370 g", material: "Recycled nylon", hs: "6202.40", rating: "20,000 mm", care: "Machine wash 30°C" },
{ variant: "Slate · XXL", sku: "RSJ-SL-XXL", price: "$189.00", weight: "385 g", material: "Recycled nylon", hs: "6201.40", rating: "20,000 mm" },
];
const variantFields = [
{ key: "sku", label: "SKU" },
{ key: "price", label: "Price" },
{ key: "weight", label: "Weight" },
{ key: "material", label: "Shell", compare: "fold" },
{ key: "hs", label: "HS code", compare: "exact" },
{ key: "rating", label: "Waterproofing" },
{ key: "care", label: "Care label" },
];
const accessData = () => [
{ name: "Aisha Khan", tickets: "Read & write", pii: "Masked", refunds: "Up to $500", billing: "No", export: "No", logs: "Read", sso: "support-t2", mfa: "Hardware key" },
{ name: "Mateo Rossi", tickets: "Read & write", pii: "Masked", refunds: "Up to $500", billing: "No", export: "No", logs: "Read", sso: "support-t3", mfa: "Hardware key" },
{ name: "Yuki Tanaka", tickets: "Read & write", pii: "Masked", refunds: "Up to $500", billing: "No", export: "No", logs: "Read", sso: "support-t2", mfa: "SMS code" },
{ name: "Lars Nilsson", tickets: "Read & write", pii: "Masked", refunds: "Up to $500", billing: "Yes", export: "No", logs: "Read", sso: "support-t2", mfa: "Hardware key" },
{ name: "Priya Raman", tickets: "Read & write", pii: "Masked", refunds: "Up to $500", billing: "No", export: "No", logs: "Read", sso: "support-t2", mfa: "Hardware key" },
{ name: "Tomás Silva", tickets: "Read & write", pii: "Masked", refunds: "Up to $500", billing: "No", export: "No", logs: "Read", sso: "support-t2", mfa: "Hardware key" },
];
const accessFields = [
{ key: "name", label: "Name" },
{ key: "tickets", label: "Tickets" },
{ key: "pii", label: "Customer PII" },
{ key: "refunds", label: "Refunds" },
{ key: "billing", label: "Billing admin" },
{ key: "export", label: "Data export" },
{ key: "logs", label: "Production logs" },
{ key: "sso", label: "SSO group" },
{ key: "mfa", label: "MFA method" },
];
variants.fields = variantFields;
variants.items = variantData();
access.fields = accessFields;
access.items = accessData();
const copy = {
fleet: ["Production web tier · 8 hosts", "Every host should run the same edge configuration. Press N / P to walk through what differs."],
variants: ["Ridge Shell Jacket · Slate · 6 sizes", "Sizes share price, codes and labels; weight varies by size and is judged against the median, not exact equality."],
access: ["Support engineer, tier 2 · 6 people", "Same role, same access expected. One column per person, one row per permission."],
};
document.getElementById("ooo-scenario").addEventListener("mv-change", (e) => {
const v = e.detail.value;
for (const p of root.querySelectorAll(".ooo-panel")) p.hidden = p.dataset.panel !== v;
document.getElementById("ooo-title").textContent = copy[v][0];
document.getElementById("ooo-sub").textContent = copy[v][1];
document.getElementById("ooo-drift").hidden = v !== "fleet";
log.textContent = "";
});
for (const el of [fleet, variants, access]) {
el.addEventListener("mv-oddities", (e) => {
const { count, items } = e.detail;
say(count ? `mv-oddities · ${count} odd value${count === 1 ? "" : "s"} in ${items.join(", ")}` : "mv-oddities · everything agrees");
});
el.addEventListener("mv-align", (e) => {
const d = e.detail;
say(`mv-align · ${d.itemLabel} ${d.fieldLabel}: ${d.value} → ${d.majority ?? "(removed)"}`);
});
}
document.getElementById("ooo-drift").addEventListener("click", () => {
document.getElementById("ooo-keepalive").textContent = "75s";
});
document.getElementById("ooo-reset").addEventListener("click", () => {
fleet.querySelector("tbody").replaceWith(fleetMarkup.cloneNode(true));
variants.items = variantData();
access.items = accessData();
say("Reset.");
});
</script>
</div>API
Attributes
| Name | タイプ | Default | Description |
|---|---|---|---|
item-key | string (field key) | Field that names each item (host, sku, email). It is used as the item label and never compared. In data mode it is also the id property (default "id", then "name"). | |
compare | auto | exact | fold | number | number:<tol> | number:<tol>% | ignore | auto | Default rule for fields without their own (data-compare on a header or a field, or compare in the fields property). auto treats a field as numeric when every value parses as a number with the same prefix and unit ($, ms, GB), otherwise exact. exact compares trimmed text with collapsed spaces; fold ignores case and accents; number without tolerance flags robust outliers (modified z-score over the median absolute deviation, or any value off the common one when most items are identical); number:0.5 or number:5% flags values farther than that from the median; ignore never compares. Set exact on numeric-looking codes (HS codes, ZIPs, versions you do not want ranked) so they are reported as ≠ rather than ▲ / ▼. |
sensitivity | number | 3.5 | Modified z-score above which a numeric value is an outlier (Iglewicz and Hoaglin's 3.5). Lower flags more. |
quorum | number (0..1) | 0.5 | Share of items the majority must exceed. Below it the field has no clear majority: nothing is marked in place and the field is listed under “No clear majority”. A field where every item differs (hostnames, IPs) is treated as naturally unique and left alone. |
min-items | number | 3 | Fewest items needed to speak of a majority. With fewer, the summary says so and nothing is marked. |
differences-only | boolean | Dims every agreeing value (and agreeing items further) so the odd ones pop; rendered views also hide fields where every item agrees. Reflected by the summary's switch. | |
alignable | boolean | Adds an “Align” button to each odd value in the summary. It emits mv-align (cancelable); see the event for the default action. | |
summary | top | bottom | none | top | Where the summary panel goes, or none to only mark values in place (events, navigation methods and announcements still work). |
badges | auto | full | compact | none | auto | In-place badge text: full (“differs from 7 of 8”), compact (“7/8”, full text in the tooltip and for screen readers) or none (ring only). auto is compact inside table cells, full elsewhere. |
layout | rows | columns | cards | rows | Data mode only: a table with one item per row, a table with one item per column (best for many fields and few items, like environments or people), or a grid of cards. |
label | string | Consistency check | Accessible name of the rendered table and its scroll region. |
data-item | string (on an item) | Marks an item (card, row, section) and gives its id. Without any, direct children containing [data-field] are the items. data-item-label or a [data-item-title] child gives a nicer label. | |
data-field | string (on a value) | Key of a value inside an item. The value is data-value when present, the value of an input / select / textarea (checked state for checkboxes), otherwise the text (the component's own badges are skipped). An element with data-field outside any item is the field's header: its text is the field label and it receives an odd-count pill. | |
data-compare / data-field-label | string (on a header or value) | Per-field rule (same syntax as compare) and label. | |
data-odd-one-out / -kind / -item / -current / -count | set by the component | On values: odd | agree | split | neutral, and the kind (differs, higher, lower, missing, extra). On items: odd | agree. data-odd-one-out-current on the oddity being visited; data-odd-one-out-count on headers. The host gets data-state="odd | clear | few". |
Properties
| Name | タイプ | Description |
|---|---|---|
items | object[] | null | Data mode: one object per item; the component renders the view set by layout. null (default) reads the markup. Objects are copied; align changes the copies. |
fields | (string | { key, label?, compare?, format?, normalize? })[] | { [key]: { … } } | Field order, labels and rules. compare also accepts a function (a, b) => boolean; normalize(value) returns the text actually compared; format(value) the text displayed (data mode). Applies to markup mode too (labels and rules). |
oddities | object[] | Read-only: { id, item, itemLabel, element, field, fieldLabel, fieldElement, value, majority, agree, total, kind, basis ("majority" or "median"), badge, description } in item then field order. |
splits | { field, label, groups: { value, count }[] }[] | Read-only: fields without a clear majority. |
report | { field, label, status, majority, agree, total, rule }[] | Read-only verdict per field; status is agree, odd, split, unique, ignored or skipped. |
strings | object | Every visible and announced text (en-US by default), merged with the defaults. Plural entries are [one, other] arrays. |
Methods
| Name | Description |
|---|---|
next() / previous() | Moves to the next or previous oddity (wrapping): focuses it, scrolls it into view, marks it current and announces it. Returns false when there is none. |
focusOddity(index) | Visits a given oddity. |
align(item, field) | Same as the Align button: emits mv-align and applies the default action unless canceled. Returns true if not canceled. |
refresh() | Re-checks now (changes are otherwise picked up automatically, debounced). |
Events
| Name | Description |
|---|---|
mv-oddities | After the first check and whenever the oddities change. detail: { list (as the oddities property), items (odd item ids), fields (odd field keys), splits, count, total }. |
mv-align | Align was requested for an odd value. Cancelable. detail: { item, itemLabel, field, fieldLabel, value, majority (the target value; null for kind "extra", meaning remove), kind, element, fieldElement, data (the item object in data mode) }. Default action: data mode updates the item's copy and re-renders; markup mode sets the value of an input / select / textarea (firing input and change) or the element's text and data-value. Call preventDefault() to apply it yourself (framework state, API call); the component re-checks when your DOM or data changes. |
Content structure
| Name | Description |
|---|---|
(content) | Your items: a table with data-item rows, a grid of cards, sections… Never moved or rebuilt; the component only adds data-odd-one-out-* attributes, tabindex="-1" on a visited value, and small badges marked .mv-odd-one-out-own. |
CSS classes
| Name | Description |
|---|---|
mv-odd-one-out-summary | Summary panel (title, Differences only switch, previous / next, list of odd items, No clear majority line); data-state="odd | clear | few". |
mv-odd-one-out-badge | In-place badge appended inside an odd value (after it for inputs); data-kind; holds the glyph, the visible count and a screen-reader description. |
mv-odd-one-out-count | Odd-count pill appended to a field header. |
mv-odd-one-out-view / -table / -cards / -card | Views rendered in data mode. |
mv-odd-one-out-own | Every node the component creates; ignored when values are read. |
CSS variables
| Name | Default | Description |
|---|---|---|
--mv-odd-one-out-color | var(--mv-warning) | Tint of odd values, badges and item edges. |
--mv-odd-one-out-ink | color-mix(color, --mv-fg 48%) | Text color on odd tints (kept readable in light and dark). |
--mv-odd-one-out-agree-color | var(--mv-success) | Icon tint when everything agrees. |
--mv-odd-one-out-dim | 0.4 | Opacity of agreeing values under Differences only. |
--mv-odd-one-out-list-height | 22rem | Max height of the summary list before it scrolls. |
Accessibility
Color is never the only signal: every odd value gets a ring and a badge whose glyph encodes the kind (≠ differs, ▲ higher, ▼ lower, ∅ missing, + only here), and the badge carries a screen-reader description read with the value itself (“TLS 1.2. Differs from 7 of 8: TLS 1.2, majority TLS 1.3.”); for inputs the description is linked with aria-describedby instead. Field headers get an odd-count pill with a spoken equivalent. The summary is a labelled section whose heading states the result; odd items are a real list, each with a button jumping to the item and one per odd value whose accessible name includes the full description, plus labelled Align buttons (“Align TLS min version on web-04 to TLS 1.3”). N and P move to the next and previous oddity anywhere inside the component (ignored while typing in a text field or with modifiers; buttons with aria-keyshortcuts do the same): the value is focused (tabindex="-1" is added only while it is odd), scrolled into view, marked current with a thicker ring and announced (“Oddity 2 of 5: web-04, Region. Differs from 7 of 8…”). Changes after the first check are announced once in a polite live region with the new summary, and focus stays on the equivalent summary control after a re-render. The Differences only switch is a native checkbox with role="switch". The rendered table has real th headers with scope and a focusable, labelled scroll region. Reduced motion (prefers-reduced-motion or data-motion="reduce"): the one-shot highlight pulse and badge nudge are removed and scrolling is instant. Forced colors: odd values are outlined with the Mark system color and the current one with Highlight.