@@ -9,6 +9,10 @@ on:
       - "site/**"
       - ".github/workflows/pages.yml"
   workflow_dispatch:
+  # Weekly rebuild so the freshness ages never lag the calendar by more than
+  # about a week when nothing is pushed.
+  schedule:
+    - cron: "17 6 * * 1"
 
 permissions:
   contents: read
 
@@ -14,6 +14,7 @@ import { deprecationReason, MarkdownError, renderBlocks, renderInline, splitEntr
 import { checkPage } from "./lib/page-checks.mjs";
 import { checkStacks } from "./checks.mjs";
 import { stackPageHtml } from "./lib/stack-page.mjs";
+import { freshnessLineHtml, freshnessPageHtml, freshnessStats } from "./lib/freshness.mjs";
 import { licenceTerms, listStackFiles, owes, parseStack, pickPath } from "./lib/stacks.mjs";
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
@@ -337,6 +338,7 @@ function sitemapXml(site, entries, stacks = []) {
   const base = site.siteUrl.replace(/\/+$/, "");
   const urls = [
     `  <url><loc>${esc(base)}/</loc></url>`,
+    `  <url><loc>${esc(base)}/freshness/</loc></url>`,
     ...stacks.map((s) => `  <url><loc>${esc(base)}/stack/${esc(s.meta.id)}/</loc><lastmod>${esc(s.meta.walked)}</lastmod></url>`),
     ...entries.map(
       (e) =>
@@ -595,7 +597,9 @@ function main() {
   const indexPath = path.join(DIST, "index.html");
   const stamp = payload.generatedAt.slice(0, 10);
   const visible = entries.filter((e) => e.status !== "deprecated");
+  const fresh = freshnessStats(entries, now);
   const substitutions = {
+    FRESHNESS_LINE: freshnessLineHtml(fresh, stamp, "freshness/"),
     HEAD_META: headMetaHtml(config.site, stats, payload.generatedAt, hasCard),
     STACK_ROWS: stackRowsHtml(stacks),
     STARTER_ROWS: starterRowsHtml(featured),
@@ -620,14 +624,19 @@ function main() {
   fs.writeFileSync(path.join(DIST, "sitemap.xml"), sitemapXml(config.site, visible, stacks));
   fs.writeFileSync(path.join(DIST, "robots.txt"), robotsTxt(config.site));
   fs.writeFileSync(path.join(DIST, "404.html"), notFoundHtml(config.site));
+  fs.mkdirSync(path.join(DIST, "freshness"), { recursive: true });
+  fs.writeFileSync(
+    path.join(DIST, "freshness", "index.html"),
+    freshnessPageHtml({ stats: fresh, site: config.site, stamp, total: stats.total, hasCard })
+  );
 
   const pages = writeEntryPages({ entries, bodies, config, stats, stamp, hasCard, now, usedIn });
   const stackPages = writeStackPages({ stacks, entries, config, stats, stamp, hasCard, now });
   const pageErrors = [
     ...stackErrors,
     ...pages.errors,
     ...stackPages.errors,
-    ...checkPages(["index.html", ...pages.written, ...stackPages.written]),
+    ...checkPages(["index.html", "freshness/index.html", ...pages.written, ...stackPages.written]),
   ];
   if (pageErrors.length) {
     console.error(`Page build failed (${pageErrors.length}):`);
@@ -654,7 +663,7 @@ function main() {
     `Built ${entries.length} entries → site/dist (${stats.active} active, ${stats.commercialOk} commercial-ok, ${stats.commercialVaries} per-file)`
   );
   console.log(
-    `Prerendered ${visible.length} entry rows into index.html; wrote ${pages.written.length} entry pages, ${stackPages.written.length} stack pages, sitemap.xml, robots.txt, 404.html`
+    `Prerendered ${visible.length} entry rows into index.html; wrote ${pages.written.length} entry pages, ${stackPages.written.length} stack pages, sitemap.xml, robots.txt, 404.html, freshness/index.html`
   );
   if (errors.length) process.exitCode = 0; // soft-fail missing fields as warnings
 }
 
@@ -165,6 +165,7 @@ export function entryPageHtml({ entry, leadHtml, restHtml, deprecatedReasonHtml,
     </main>
     <footer class="footer">
       <p>Catalog metadata is CC0. Linked assets keep their own licenses: re-check the live source before shipping.</p>
+      <p><a href="../../freshness/">Licence freshness</a></p>
       <p class="footer-stamp">Built ${esc(stamp)} from ${total} catalog entries.</p>
     </footer>
     ${c.script ? '<script src="../../entry.js" defer></script>' : ""}
 
@@ -416,6 +416,11 @@ has("an undated row says so", fp, "no check date");
 has("recent section present", fp, 'id="recent"');
 lacks("deprecated left out of the page", fp, "Theta");
 
+/* freshness: links in ------------------------------------------------------ */
+has("entry page footer links freshness", p, '<a href="../../freshness/">Licence freshness</a>');
+has("stack page footer links freshness", spage, '<a href="../../freshness/">Licence freshness</a>');
+has("llms points at freshness", lt, "Licence freshness, every entry by check date: https://x.test/s/freshness/");
+
 /* report (keep last) ------------------------------------------------------ */
 if (failures.length) {
   console.error(`lib.test failed (${failures.length}):`);
 
@@ -1,6 +1,6 @@
 /** Plain-text indexes of the catalog for AI assistants (llmstxt.org format). */
 import { sectionMarkdown, splitEntryBody } from "./markdown.mjs";
-import { commercialLabel, entryPageUrl, stackPageUrl } from "./shared.mjs";
+import { commercialLabel, entryPageUrl, freshnessPageUrl, stackPageUrl } from "./shared.mjs";
 import { owes } from "./stacks.mjs";
 
 /** The first paragraph of the body before its first `##`, lines joined. */
@@ -38,6 +38,8 @@ function header(site) {
 > ${site.tagline}
 
 A curated catalog of free game assets, libraries and tools. It holds links and licence metadata only; nothing is rehosted. Each licence was read at its source on the entry's verified date, and the entry page quotes it with dates. "needs-review" means a real question is open: read the entry's Notes before shipping. Deprecated entries are not listed.
+
+Licence freshness, every entry by check date: ${freshnessPageUrl(site)}
 `;
 }
 
 
@@ -164,6 +164,7 @@ export function stackPageHtml({ stack, sections, gapsHtml, leadHtml, owed, site,
     </main>
     <footer class="footer">
       <p>Catalog metadata is CC0. Linked assets keep their own licenses: re-check the live source before shipping.</p>
+      <p><a href="../../freshness/">Licence freshness</a></p>
       <p class="footer-stamp">Built ${esc(stamp)} from ${total} catalog entries.</p>
     </footer>
     ${script}
 
@@ -43,6 +43,7 @@ <h1 id="hero-title">Free Game Dev Assets</h1>
           <a class="btn" href="#catalog">Browse catalog</a>
           <a class="text-link" href="#starters">Jump to safe starters</a>
         </p>
+        <p class="freshness-line"><!--FRESHNESS_LINE--></p>
       </section>
 
       <section class="section" id="stacks" aria-labelledby="stacks-title">
@@ -175,6 +176,7 @@ <h2 id="guides-title">Guides</h2>
         <a id="footer-repo" href="https://github.com/TMHSDigital/Free-Game-Dev-Assets">Contribute on GitHub</a>
         · add entries from <code>catalog/TEMPLATE.md</code>
       </p>
+      <p><a href="freshness/">Licence freshness</a></p>
       <p class="footer-stamp"><!--FOOTER_STAMP--></p>
     </footer>