docs: add Cursor prototype contributor setup to README and hub guide

Adds a "Contributing a prototype" section to README.md with the four-step
Cursor-first workflow (clone, open in Cursor, start dev server, chat prompt).
Updates the hub contributor guide to include a "Start the dev server" step
and an explicit "Create your prototype" step with the opening chat prompt,
so designers know exactly what to type in Cursor to kick off the skill.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: matthewcarleton

README.md

@@ -39,7 +39,34 @@ openshift-origin-design/
 
 Edit Markdown under `designs/`, `conventions/`, or `research/`. The published site is built from the upstream [openshift/openshift-origin-design](https://github.com/openshift/openshift-origin-design) GitHub Pages configuration.
 
-### New interactive prototype
+### Contributing a prototype
+
+The fastest way to add a prototype is with **Cursor** and the built-in skill. No memorizing manifest fields or npm scripts.
+
+1. **Clone the repo**
+   ```bash
+   git clone git@github.com:matthewcarleton/openshift-origin-design.git
+   cd openshift-origin-design
+   ```
+
+2. **Open in Cursor** — `File → Open Folder`, select the `openshift-origin-design/` directory.
+
+3. **Start the dev server**
+   ```bash
+   cd hub && npm run dev
+   ```
+   Opens the prototype hub at [http://localhost:5173](http://localhost:5173).
+
+4. **Create your prototype** — in Cursor's chat panel, type:
+   > I want to create a prototype
+
+   Cursor will walk you through everything: product area, Jira ticket, persona, design notes, design doc link, and recording link.
+
+The repo ships with a `prototype-contributor` skill at `.cursor/skills/prototype-contributor/` that loads automatically when you open this folder in Cursor. It handles branching, scaffolding, registering the prototype in the hub, and opening a pull request.
+
+### New interactive prototype (manual)
+
+If you prefer working without the Cursor skill:
 
 1. Work in `hpux-prototypes/` (see `guides/` for architecture and setup).
 2. Scaffold from the template: `npm run create-prototype` (runs `scripts/create-prototype.cjs`).

hub/src/App.tsx

@@ -906,6 +906,43 @@ function HubContributingPage() {
           <em>I need to add to the design repo</em>.
         </Content>
 
+        <SectionSpacer />
+        <Title headingLevel="h3" size="xl">
+          Start the dev server
+        </Title>
+        <Content component={ContentVariants.p} style={{ ...STEP_GAP, ...MW }}>
+          Open Cursor&apos;s built-in terminal (<strong>Terminal → New Terminal</strong>) and run:
+        </Content>
+        <Content component={ContentVariants.p} style={{ ...STEP_GAP, ...MW }}>
+          <Code>cd hub && npm run dev</Code>
+        </Content>
+        <Content component={ContentVariants.p} style={{ ...STEP_GAP, ...MW }}>
+          This starts the prototype hub at{" "}
+          <a href="http://localhost:5173" target="_blank" rel="noopener noreferrer">
+            http://localhost:5173
+          </a>
+          . Keep it running while you work — changes appear automatically without a page refresh.
+        </Content>
+
+        <SectionSpacer />
+        <Title headingLevel="h3" size="xl">
+          Create your prototype
+        </Title>
+        <Content component={ContentVariants.p} style={{ ...STEP_GAP, ...MW }}>
+          With the dev server running, open Cursor&apos;s chat panel and type:
+        </Content>
+        <Content
+          component={ContentVariants.p}
+          style={{ ...STEP_GAP, ...MW, fontStyle: "italic", paddingLeft: "var(--pf-t--global--spacer--md)", borderLeft: "3px solid var(--pf-t--global--border--color--default)" }}
+        >
+          I want to create a prototype
+        </Content>
+        <Content component={ContentVariants.p} style={{ ...STEP_GAP, ...MW }}>
+          The <strong>prototype-contributor</strong> skill will ask you for: product area, Jira ticket, persona, design notes,
+          design doc link, and recording link — then scaffold the prototype, register it in the hub manifest, and guide you
+          through committing and opening a pull request.
+        </Content>
+
         <SectionSpacer />
         <Title headingLevel="h3" size="xl">
           Create your branch