The Word add-in's section and screenshot, which #87 merged without

README.md

@@ -262,6 +262,65 @@ See `skill/README.md`.
 
 ---
 
+## 6. Use it where the writing happens — the Word add-in
+
+A task pane inside Word. Press **Read the signs** on the Home tab and it reads the open document and
+answers in the sidebar: no copying into a browser, no uploading a file, no leaving the page you are
+writing on.
+
+**It is the same engine, not a smaller one.** Every rule, the character scan, the citation
+cross-check and the verdict rules arrive through `SignsOfAI.UI`, the class library the web app and
+the desktop app also render. Word is simply a third host.
+
+### Why a task pane is the right place for this particular tool
+
+A task pane is a browser. The WebAssembly engine is downloaded once and runs there, on the machine,
+which means **the document is never uploaded**. It is the guarantee the web app already makes, in the
+application where the document actually lives.
+
+That is not a nicety. Every other add-in in this category posts your text to an API, because their
+analysis is a server. Ours is not, so there is nothing to post it to. And the manifest asks for
+**`ReadDocument`**, not `ReadWriteDocument`: Word itself enforces that this add-in can only read
+your document, rather than asking you to trust a sentence on a website.
+
+### What it looks like on a real document
+
+![The Signs of AI Writing task pane open beside a document in Word on the web: a score of 0/100, the verdict withheld because the document is 357 words, and six no-break spaces reported underneath](Docs/screenshots/word-taskpane.png)
+
+That is Word on the web (the address bar is in the picture) with a 357-word document open, and the
+pane is worth reading twice.
+
+**It refused to give a verdict**, and printed why: the corpus this build is calibrated on contains no
+text shorter than 649 words, so below that there is nothing to compare against and the score is
+*"neither evidence that a machine wrote this nor evidence that a person did."* See
+[the calibration](Docs/CALIBRATION.md).
+
+**And it still found six no-break spaces**, because the character scan is a fact about the file
+rather than a judgement of its prose. It carries no threshold, so it holds at any length, and it
+says nothing about who wrote anything, which the panel states in as many words.
+
+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).
+
+**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.
+
+### PowerPoint is a different product, on purpose
+
+A deck rarely reaches 649 words, so the same add-in in PowerPoint would mostly do what it did above:
+withhold the verdict. Correct, and not much use. What *does* work at slide length is the part with no
+threshold — the character scan and the named tells — so the honest question there is **"does this
+deck carry a humanizer's fingerprints"**, not "is this AI". That is a different product and it is not
+built yet.
+
+---
+
 ## Architecture
 
 ```

src/SignsOfAI.UI/Components/Icon.razor

@@ -21,6 +21,7 @@
         "close"        => "<path d='M6 6l12 12'/><path d='M18 6 6 18'/>",
         "lock"         => "<rect x='4' y='11' width='16' height='9' rx='2'/><path d='M8 11V7a4 4 0 0 1 8 0v4'/>",
         "check-circle" => "<circle cx='12' cy='12' r='9'/><path d='m8.5 12.5 2.5 2.5 4.5-5'/>",
+        "file-text"    => "<path d='M14 3H7a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h10a2 2 0 0 0 2-2V8Z'/><path d='M14 3v5h5'/><path d='M9 13h6'/><path d='M9 17h4'/>",
         "beaker"       => "<path d='M9 3h6'/><path d='M10 3v6l-5 9a2 2 0 0 0 1.8 3h10.4a2 2 0 0 0 1.8-3l-5-9V3'/><path d='M7.5 15h9'/>",
         "scale"        => "<path d='M12 3v18'/><path d='M7 21h10'/><path d='M5 7h14'/><path d='M9 7 5 7 3 12a3 3 0 0 0 6 0Z'/><path d='M19 7h-4l-2 5a3 3 0 0 0 6 0Z'/>",
         "globe"        => "<circle cx='12' cy='12' r='9'/><path d='M3 12h18'/><path d='M12 3a15 15 0 0 1 0 18a15 15 0 0 1 0-18'/>",

src/SignsOfAI.UI/Pages/Download.razor

@@ -106,6 +106,30 @@ 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. *@
+<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>
+</section>
+
 @code {
     private bool _checkForUpdates;
 

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

@@ -57,6 +57,14 @@
   "dl.add.ollama.browser": "In a browser: refused, unless you reconfigure Ollama’s allowed origins yourself.",
   "dl.same.title": "What it does not change",
   "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.",
   "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.",

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

@@ -57,6 +57,14 @@
   "dl.add.ollama.browser": "En el navegador: rechazado, salvo que reconfigures tú mismo los orígenes permitidos de Ollama.",
   "dl.same.title": "Lo que no cambia",
   "dl.same.body": "El mismo texto obtiene el mismo número aquí y en el navegador — es el mismo motor, compilado de la misma fuente. No se sube nada para hacer el análisis. Hay cuatro funciones opcionales que pueden enviar texto fuera del dispositivo y <strong>ninguna se activa si tú no la activas</strong>; en la app de escritorio la medición de perplejidad también es local, así que quedan tres.",
+  "dl.word.title": "Dentro de Word, donde se escribe",
+  "dl.word.lede": "Un panel que lee el documento abierto y responde en la barra lateral. El mismo motor, las mismas reglas, los mismos números — Word es sencillamente un tercer sitio donde ejecutarlo.",
+  "dl.word.why": "Un panel de tareas <strong>es un navegador</strong>, así que el motor corre ahí, en tu máquina, y <strong>el documento no se sube a ningún sitio</strong>. Los demás add-ins de este tipo envían tu texto a una API, porque su análisis es un servidor; el nuestro no lo es, así que no hay adónde enviarlo. Y le pide permiso a Word para <strong>leer</strong> el documento, nunca para cambiarlo — lo impone Word, en vez de pedirte que te fíes de una frase en una web.",
+  "dl.word.install.web": "<strong>Word en el navegador:</strong> Inicio → Complementos → Más complementos → Mis complementos → Cargar mi complemento, y elige el manifest.",
+  "dl.word.install.desktop": "<strong>Word para Windows</strong> no tiene botón de carga y lee una carpeta compartida; los pasos están escritos en la página del propio add-in.",
+  "dl.word.manifest": "El manifest",
+  "dl.word.steps": "Cómo instalarlo, paso a paso",
+  "dl.word.size": "La primera carga son unos 3,4 MB — el runtime, y después queda en caché. Todavía no está en la tienda de Office.",
   "dl.warn.title": "Windows te va a avisar, y hace bien",
   "dl.warn.body": "La descarga <strong>no está firmada</strong> — un certificado es justo lo que este proyecto no puede costear. Por eso SmartScreen dice <em>Windows protegió su PC</em> la primera vez y habla de un editor desconocido. El aviso está haciendo su trabajo. Comprueba el archivo en vez de saltártelo:",
   "dl.warn.step1": "Clic derecho en el .zip descargado → Propiedades, y marca Desbloquear si aparece.",