The Word add-in gets its own page, like the desktop app

README.md

@@ -303,13 +303,13 @@ A tool that answers everything is easy to build. This is the other kind.
 
 ### Installing it
 
-**Word on the web** — Home → Add-ins → More Add-ins → My Add-ins → **Upload My Add-in**, and choose
-[`src/SignsOfAI.Word/manifest.xml`](src/SignsOfAI.Word/manifest.xml).
+**[The add-in's page →](https://peopleworks.github.io/SignsofAI/word)** — what it does, both
+install routes, and what it refuses to do, in English and Spanish.
 
-**Word for Windows** has no upload button and reads a shared-folder catalogue instead; the steps are
-in [`src/SignsOfAI.Word/README.md`](src/SignsOfAI.Word/README.md).
-
-First load is about 3.4 MB — the .NET runtime, cached afterwards. It is not in the Office Store yet.
+The short version: on the web it is Home → Add-ins → More Add-ins → My Add-ins → **Upload My Add-in**
+with [`src/SignsOfAI.Word/manifest.xml`](src/SignsOfAI.Word/manifest.xml). Word for Windows has no
+upload button and reads a shared-folder catalogue instead, which
+[`src/SignsOfAI.Word/README.md`](src/SignsOfAI.Word/README.md) walks through.
 
 ### PowerPoint is a different product, on purpose
 

src/SignsOfAI.UI/Layout/MainLayout.razor

@@ -22,6 +22,9 @@
             <NavLink class="nav-link" href="baseline">@L["nav.baseline"]</NavLink>
             <NavLink class="nav-link" href="originality">@L["nav.originality"]</NavLink>
             <NavLink class="nav-link" href="catalog">@L["nav.catalog"]</NavLink>
+            @* No host condition, unlike the two below: somebody using the desktop app writes in
+               Word too, and the add-in is useful to them for the same reasons. *@
+            <NavLink class="nav-link" href="word">@L["nav.word"]</NavLink>
             @* Only where there is something to gain by downloading it. The same signal as the
                folder link above, and for the same reason: this host cannot open a folder, so a
                better host exists for this machine and hiding that would be the lowest-common-

src/SignsOfAI.UI/Pages/Download.razor

@@ -106,28 +106,15 @@ else
     <p class="hint">@L.M("dl.zip.body")</p>
 </section>
 
-@* Not the desktop app, and placed after it rather than beside it: this is the other way to run the
-   engine on your own machine, in the application where the document already is. The privacy claim is
-   the same one and it is the reason this host is worth having at all, so it is stated rather than
-   implied. *@
+@* The Word add-in has its own page. This is a pointer, deliberately short: the argument lived here
+   in full for a few hours and that is two copies of the same paragraphs, which is how one of them
+   ends up saying something the other stopped saying. *@
 <section class="card">
     <h2 class="dl-h2"><Icon Name="file-text" /> @L["dl.word.title"]</h2>
     <p class="hint">@L["dl.word.lede"]</p>
-    <p>@L.M("dl.word.why")</p>
-
-    <ul class="dl-steps">
-        <li>@L.M("dl.word.install.web")</li>
-        <li>@L.M("dl.word.install.desktop")</li>
-    </ul>
-
-    <p class="hint sub">
-        <a href="https://github.com/peopleworks/SignsofAI/blob/main/src/SignsOfAI.Word/manifest.xml"
-           target="_blank" rel="noopener">@L["dl.word.manifest"]</a>
-        ·
-        <a href="https://github.com/peopleworks/SignsofAI/blob/main/src/SignsOfAI.Word/README.md"
-           target="_blank" rel="noopener">@L["dl.word.steps"]</a>
-    </p>
-    <p class="hint">@L["dl.word.size"]</p>
+    <div class="cta">
+        <a class="primary" href="word">@L["dl.word.page"]</a>
+    </div>
 </section>
 
 @code {

src/SignsOfAI.UI/Pages/WordAddin.razor

@@ -0,0 +1,108 @@
+@page "/word"
+@using SignsOfAI.Core.Calibration
+@inherits LocalizedComponent
+
+@*
+    The Word add-in's own page, the way the desktop app has one.
+
+    It leads with what the add-in refuses to do, because that is what makes it different from every
+    other add-in in this category — not as modesty, but because a reader deciding whether to let a
+    tool near coursework is deciding about exactly those refusals.
+
+    The floor and the published rate are read from the calibration the build ships rather than typed
+    here. That page went stale for six days in August by being typed; this one cannot.
+*@
+
+<PageTitle>@L["wa.pagetitle"]</PageTitle>
+
+<header class="hero">
+    <h1>@L["wa.h1"]</h1>
+    <p class="tagline">@L["wa.tagline"]</p>
+</header>
+
+@* Installing first: somebody who arrived from the README or a video wants the manifest, not an
+   argument they have already been convinced by. *@
+<section class="card">
+    <h2 class="dl-h2"><Icon Name="download" /> @L["wa.install.title"]</h2>
+    <p class="hint">@L["wa.install.lede"]</p>
+
+    <h3 class="wa-h3">@L["wa.install.web.title"]</h3>
+    <ol class="dl-steps">
+        <li>@L.M("wa.install.web.1")</li>
+        <li>@L.M("wa.install.web.2")</li>
+        <li>@L.M("wa.install.web.3")</li>
+    </ol>
+
+    <h3 class="wa-h3">@L["wa.install.win.title"]</h3>
+    <p>@L.M("wa.install.win.body")</p>
+
+    <div class="cta">
+        <a class="primary" href="@ManifestUrl" target="_blank" rel="noopener">@L["wa.install.manifest"]</a>
+        <a href="@StepsUrl" target="_blank" rel="noopener">@L["wa.install.steps"]</a>
+    </div>
+    <p class="hint sub">@L["wa.install.size"]</p>
+</section>
+
+@* The differentiator, stated as a mechanism rather than a promise: there is no endpoint, so there
+   is nothing to send the document to. A claim a reader can check in the manifest beats one they
+   have to believe. *@
+<section class="card">
+    <h2 class="dl-h2"><Icon Name="lock" /> @L["wa.privacy.title"]</h2>
+    <p>@L.M("wa.privacy.body")</p>
+    <p>@L.M("wa.privacy.permission")</p>
+</section>
+
+<section class="card">
+    <h2 class="dl-h2">@L["wa.does.title"]</h2>
+    <ul class="dl-grid">
+        @foreach (var item in Does)
+        {
+            <li class="dl-item">
+                <h3>@L[$"wa.does.{item}.name"]</h3>
+                <p>@L[$"wa.does.{item}.what"]</p>
+            </li>
+        }
+    </ul>
+</section>
+
+@* The refusal, with the numbers read from the shipped calibration. This is the part a teacher is
+   deciding about, so it gets its own section rather than a caveat at the bottom. *@
+<section class="card">
+    <h2 class="dl-h2">@L["wa.short.title"]</h2>
+    <p>@L.F("wa.short.body", Floor)</p>
+    <blockquote class="wa-quote">@L.F("wa.short.quote", Floor)</blockquote>
+    <p>@L.F("wa.short.rate", Texts, Flagged, RateHigh)</p>
+    <p class="hint">@L["wa.short.facts"]</p>
+</section>
+
+<section class="card">
+    <h2 class="dl-h2">@L["wa.not.title"]</h2>
+    <ul class="dl-steps">
+        <li>@L.F("wa.not.powerpoint", Floor)</li>
+        <li>@L["wa.not.parts"]</li>
+        <li>@L["wa.not.store"]</li>
+    </ul>
+</section>
+
+<div class="cta">
+    <a href="./">@L["wa.cta.try"]</a>
+    <a href="https://github.com/peopleworks/SignsofAI" target="_blank" rel="noopener">@L["wa.cta.code"]</a>
+</div>
+
+@code {
+    private const string Repo = "https://github.com/peopleworks/SignsofAI/blob/main/src/SignsOfAI.Word";
+    private const string ManifestUrl = $"{Repo}/manifest.xml";
+    private const string StepsUrl = $"{Repo}/README.md";
+
+    // Same shape as Download.razor's list, and listed by hand in LocaleFileTests for the same
+    // reason: a text search cannot see a key built from this array.
+    private static readonly string[] Does = ["reads", "evidence", "characters", "languages"];
+
+    // Read, never restated. why.html was typed by hand and spent six days quoting a corpus of
+    // ninety after the corpus became 296.
+    private static int Floor => PublishedCalibration.Current?.ShortestWords ?? 0;
+    private static int Texts => PublishedCalibration.Current?.Texts ?? 0;
+    private static int Flagged => PublishedCalibration.Current?.FlaggedAtThreshold ?? 0;
+    private static string RateHigh =>
+        ((PublishedCalibration.Current?.RateHigh ?? 0) * 100).ToString("0.0");
+}

src/SignsOfAI.UI/wwwroot/css/app.css

@@ -1101,6 +1101,39 @@ button.ghost.sm { padding: .35rem .7rem; font-size: .82rem; }
    Deliberately shares the visual language of the front-door task cards: somebody who learned to
    read those four cards reads these four the same way. */
 .dl-h2 { font-size: 1.02rem; margin: 0 0 .35rem; }
+
+/* The Word add-in page. It reuses the download page's cards, and adds only what it needs:
+   a sub-heading inside a card, and a pulled quote for the sentence the pane actually prints. */
+.wa-h3 { font-size: .94rem; font-weight: 650; margin: 1.1rem 0 .4rem; }
+
+/* A row of links where one of them is the action. why.html has a .cta of its own — it is a
+   standalone page with its own stylesheet — and copying the markup here without the style is
+   exactly how this shipped as two bare links sitting against each other. */
+.cta { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin: 1rem 0 .4rem; }
+.cta a {
+  padding: .55rem 1rem;
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  text-decoration: none;
+  font-weight: 600;
+  font-size: .92rem;
+  transition: filter .15s, transform .15s, border-color .15s;
+}
+.cta a:hover, .cta a:focus-visible { transform: translateY(-1px); border-color: var(--brand); }
+.cta a.primary {
+  background: var(--brand);
+  color: var(--brand-ink);
+  border-color: transparent;
+}
+.cta a.primary:hover, .cta a.primary:focus-visible { filter: brightness(1.08); }
+.wa-quote {
+  margin: .6rem 0;
+  padding: .7rem .9rem;
+  border-left: 3px solid var(--muted, #9aa4b0);
+  background: rgba(128, 128, 128, .07);
+  font-size: .92rem;
+  line-height: 1.5;
+}
 .dl-h2 svg { vertical-align: -2px; }
 
 /* The call to action. A link, not a button, because it is a download and the browser should be

src/SignsOfAI.UI/wwwroot/i18n/en.json

@@ -59,12 +59,44 @@
   "dl.same.body": "The same text gets the same number here and in the browser — it is the same engine, compiled from the same source. Nothing is uploaded to run the analysis. Four optional features can send text off the device and <strong>not one of them runs unless you turn it on</strong>; in the desktop app the perplexity measurement is local too, so three remain.",
   "dl.word.title": "Inside Word, where the writing happens",
   "dl.word.lede": "A task pane that reads the open document and answers in the sidebar. Same engine, same rules, same numbers — Word is simply a third place to run it.",
-  "dl.word.why": "A task pane <strong>is a browser</strong>, so the engine runs there, on your machine, and <strong>the document is never uploaded</strong>. Every other add-in of this kind posts your text to an API, because their analysis is a server; ours is not, so there is nothing to post it to. And it asks Word for permission to <strong>read</strong> your document, never to change it — Word enforces that, rather than asking you to trust a sentence on a website.",
-  "dl.word.install.web": "<strong>Word on the web:</strong> Home → Add-ins → More Add-ins → My Add-ins → Upload My Add-in, and choose the manifest.",
-  "dl.word.install.desktop": "<strong>Word for Windows</strong> has no upload button and reads a shared folder instead; the steps are written out in the add-in's own page.",
-  "dl.word.manifest": "The manifest",
-  "dl.word.steps": "Installing, step by step",
-  "dl.word.size": "First load is about 3.4 MB — the runtime, cached afterwards. Not in the Office Store yet.",
+  "wa.pagetitle": "Word add-in — Signs of AI Writing",
+  "wa.h1": "Signs of AI Writing, inside Word",
+  "wa.tagline": "A task pane that reads the document you have open and answers beside it. Same engine, same rules, same numbers — and the document never leaves your machine.",
+  "wa.install.title": "Installing it",
+  "wa.install.lede": "There is nothing to download and nothing to run. Word loads the pane from a web address; what you install is a small manifest file that tells it which one.",
+  "wa.install.web.title": "Word on the web",
+  "wa.install.web.1": "Open a document at <strong>office.com</strong>.",
+  "wa.install.web.2": "<strong>Home</strong> → <strong>Add-ins</strong> → <strong>More Add-ins</strong> → <strong>My Add-ins</strong> → <strong>Upload My Add-in</strong>.",
+  "wa.install.web.3": "Choose the manifest below. Then <strong>Home</strong> → <strong>Read the signs</strong>.",
+  "wa.install.win.title": "Word for Windows",
+  "wa.install.win.body": "The desktop version has no upload button. It reads a <strong>shared folder</strong> you register once in Trust Center, and after that the add-in appears in the ribbon like any other. It is more clicks than it should be, and that is Microsoft's design rather than ours — the steps are written out in full on the add-in's page.",
+  "wa.install.manifest": "Get the manifest",
+  "wa.install.steps": "Installing, step by step",
+  "wa.install.size": "First load is about 3.4 MB — the .NET runtime, cached afterwards. Not in the Office Store yet, which is why installing it still takes a menu.",
+  "wa.privacy.title": "Your document is never uploaded",
+  "wa.privacy.body": "Not as a promise — as a mechanism. <strong>A task pane is a browser</strong>: an embedded window with the same rules as a tab. The engine is WebAssembly, it downloads once with the pane, and it runs there. <strong>There is no endpoint in this add-in</strong>, so there is nowhere for your text to be sent. Every other add-in of this kind posts your document to a server, because their analysis <em>is</em> the server.",
+  "wa.privacy.permission": "And it asks Word for permission to <strong>read</strong> your document, never to change it. That is one line in the manifest, and <strong>Word enforces it</strong> — you do not have to take our word for it, and you can read the line yourself before installing anything.",
+  "wa.does.title": "What it does",
+  "wa.does.reads.name": "Reads the open document",
+  "wa.does.reads.what": "One button. No copying into a browser, no saving a file first, no leaving the page you are writing on.",
+  "wa.does.evidence.name": "Names every signal",
+  "wa.does.evidence.what": "Not a percentage on its own. Each tell is listed by name with the fix, so you can disagree with any one of them.",
+  "wa.does.characters.name": "Finds what typing cannot produce",
+  "wa.does.characters.what": "Invisible characters and letters from other alphabets, with the codepoint and every position. A fact about the file, not a judgement of its prose.",
+  "wa.does.languages.name": "English and Spanish",
+  "wa.does.languages.what": "The pane's language and the document's are independent. A Spanish essay is judged by Spanish rules, whichever language you read the interface in.",
+  "wa.short.title": "What it does with a short document, which is the part worth reading",
+  "wa.short.body": "It gives a score and then declines to draw a conclusion from it. The boundary this build judges by was measured only on documents of {0} words and longer, so below that length there is nothing it was fitted on. The pane says so:",
+  "wa.short.quote": "No verdict at this length. The boundary was measured only on texts of {0} words and longer, so no verdict is given — the score is neither evidence that a machine wrote this nor evidence that a person did.",
+  "wa.short.rate": "The boundary itself was measured on {0} documents written before 2022 — human by their dates, not by anyone's opinion. At that boundary it flags {1} of them, and the honest upper bound is {2}%. That figure is published, and it moves when the corpus moves.",
+  "wa.short.facts": "The character scan and the citation cross-check carry no threshold, so they still report at any length. Most of what people check is a paragraph, so the pane will decline often. That is the design, not a gap in it.",
+  "wa.not.title": "What it does not do",
+  "wa.not.powerpoint": "There is no PowerPoint version. A slide deck rarely reaches {0} words, so the same add-in there would withhold the verdict for almost every deck — correctly, and to nobody's benefit. That is a different product with a different promise.",
+  "wa.not.parts": "It reads the body of the document. Not comments, not footnotes, not tracked changes.",
+  "wa.not.store": "It is not in the Office Store yet, so installing it is a manifest and a menu rather than a button.",
+  "wa.cta.try": "Try it in the browser first",
+  "wa.cta.code": "Read the code",
+  "nav.word": "Word",
   "dl.warn.title": "Windows will warn you, and it is right to",
   "dl.warn.body": "The download is <strong>not code-signed</strong> — a certificate is the one thing this project has no funding for. SmartScreen therefore says <em>Windows protected your PC</em> the first time you run it, and names an unknown publisher. The warning is doing its job. Check the file instead of clicking through it:",
   "dl.warn.step1": "Right-click the downloaded .zip → Properties, and tick Unblock if it is offered.",
@@ -449,5 +481,6 @@
   "home.report.hint": "A document you can keep, forward or print. It contains your text, so it is saved to your device.",
   "home.report.title": "Writing analysis report",
   "batch.report.hint": "Save the scan as a document you can keep or hand to a colleague. It names your students' files.",
-  "batch.report.title": "Folder scan — reading order"
+  "batch.report.title": "Folder scan — reading order",
+  "dl.word.page": "How it works, and how to install it"
 }