Console harvester: bulk-download all project videos, bypassing DL Mode's broken flyout

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tools/flow_console_harvest.js

@@ -0,0 +1,55 @@
+/* Flow console harvester — paste into DevTools Console on the project's
+   Videos page (labs.google/fx/tools/flow/project/<id> with Videos filter).
+   Auto-scrolls the grid to load every tile, collects every unique video
+   source, and downloads them sequentially as flowvid_NNN.mp4 into the
+   browser's Downloads folder. Grid previews are the full mp4s at ~720p,
+   which is the game's target resolution anyway.
+   Safe: read-only against Flow; no clicks on app buttons. */
+(async () => {
+  const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+  const seen = new Set();
+
+  const collect = () => {
+    document.querySelectorAll("video").forEach((v) => {
+      const s = v.currentSrc || v.src || v.querySelector?.("source")?.src;
+      if (s) seen.add(s);
+    });
+  };
+
+  // Find the scrollable container (falls back to window)
+  const scroller =
+    [...document.querySelectorAll("*")].find(
+      (el) => el.scrollHeight > el.clientHeight + 500 && el.clientHeight > 400
+    ) || document.scrollingElement;
+
+  console.log("%cHarvest: scrolling to load all tiles…", "color:#0f0");
+  let lastCount = -1, stable = 0;
+  while (stable < 3) {
+    collect();
+    scroller.scrollBy?.(0, 900) ?? window.scrollBy(0, 900);
+    await sleep(700);
+    collect();
+    if (seen.size === lastCount) stable++;
+    else { stable = 0; lastCount = seen.size; }
+  }
+  console.log(`%cHarvest: found ${seen.size} unique videos. Downloading…`, "color:#0f0");
+
+  let n = 0;
+  for (const src of seen) {
+    n++;
+    try {
+      const blob = await fetch(src).then((r) => r.blob());
+      const a = document.createElement("a");
+      a.href = URL.createObjectURL(blob);
+      a.download = `flowvid_${String(n).padStart(3, "0")}.mp4`;
+      document.body.appendChild(a);
+      a.click();
+      a.remove();
+      console.log(`downloaded ${n}/${seen.size}`);
+      await sleep(1200); // gentle: don't trip the download shelf
+    } catch (e) {
+      console.warn(`miss ${n}: ${e.message}`);
+    }
+  }
+  console.log("%cHarvest complete. Check your Downloads folder.", "color:#0f0");
+})();