Find your device. Three taps.
There's no app store and no account. Your browser turns this page into an app on your device. Pick the block that matches what you're holding — the pictures show what your screen will look like at each step.
Make sure you're in Safari
This only works in Safari on iPhone and iPad — Chrome on iOS can't install apps. If you opened this link from Slack or Mail, tap the compass icon to reopen it in Safari first.
Already in Safari? Skip straight to step 2.
Tap Share, then Add to Home Screen
The Share button is the square with an arrow pointing up out of it, in the bar at the bottom of the screen. Tap it, scroll the list down a little, and tap Add to Home Screen.
Don't see it? Scroll the grey list further down — on a long list it sits below Add to Favourites.
Tap Add
A small preview appears with the name LL Claude. Tap Add in the top-right corner. Close Safari and look at your Home Screen — there's a blue icon with a white X on it. That's the app.
Open it once while you still have signal, so it can save everything for offline use.
Look for the install banner — or use the menu
Chrome on Android often shows an Install prompt at the bottom of the screen on its own. If it does, tap it and you're done. If it doesn't, tap the ⋮ three dots in the top-right corner.
Tap Install, then Install again to confirm
The menu item is called Install app on newer Chrome and Add to Home screen on older versions — either one is correct. Confirm, and the icon lands on your home screen.
Open it once with signal so it can cache everything for offline use.
Click the install icon in the address bar
Look at the right-hand end of the address bar, where the web address is. There's a small icon — a monitor with an arrow, or a plus inside a square. Click it.
No icon there? Click the ⋮ menu at the far right instead, then look for Cast, save and share → Install page as app in Chrome, or Apps → Install this site as an app in Edge.
Click Install
It opens in its own window with no browser tabs or address bar, and pins to your taskbar and Start menu like any other program. You'll get the dashboard layout on a computer — sidebar on the left, panels on the right.
Chrome or Edge: the install icon in the address bar
Same as Windows — a small install icon at the right-hand end of the address bar. Click it, then click Install. It lands in your Applications folder and your Dock.
Safari: File → Add to Dock
Safari on recent macOS installs web apps too, it just calls it something else. With this page open, use the menu bar: File → Add to Dock, then click Add. Same result — its own window, its own Dock icon.
On an older macOS without that menu item, use Chrome or Edge instead.
Two layouts, one app.
On a phone it looks like any other app — a title bar at the top and a row of tabs along the bottom for Home, Prompts, Connect, Fixes, and More. On a computer it's a dashboard: a sidebar down the left with every section and the whole library, content on the right. No browser tabs, no address bar, and no connection required once you've opened it once.
Six commands and two keys.
Everything else you can look up. These you should know cold.
claudeStart a session — from inside the project folder./modelSwap model & effort. Fable 5 high to plan, Sonnet 5 xhigh to do./mcpWhat's connected. unreal should be green with the editor open./rewindThe undo button. Restores code, conversation, or both./pluginWhat's installed, and the Errors tab when something's off./loginSwitch accounts — fixes "signed in but no access".Shift + TabCycle permission modes: ask → auto → plan.Esc EscInterrupt, then open rewind on an empty prompt.Fable to plan, Sonnet to do
Fable 5 · high for features, architecture calls, and hairy debugging — pair it with plan mode. Sonnet 5 · xhigh ("extra") to execute the approved plan. That's the studio convention; swap with /model.
End Unreal work with "prove it"
"Verify it in the editor" turns Claude into a self-checking loop — it runs the map, looks at the result, and fixes what it finds before telling you it's done. Done means demonstrated.
Paste one. Change the nouns.
Real prompts from the department pages, in one tappable place. Tap a department, hit COPY, edit the specifics. The point isn't the exact wording — it's the shape: context, then what "done" looks like.
Four failures, four fixes.
Nearly every problem anyone reports is one of these. Check them in this order before asking.
"claude: command not found"
Close the terminal completely and open a fresh one. Installers update your setup, but only brand-new windows see it.
unreal shows failed in /mcp
In order of likelihood: is the editor actually open? Is the plugin enabled? Are the Toolset registries turned on inside Unreal? Did you start claude from inside the project folder?
Signed in but "no access"
You're on a personal account. Run /login and switch to your Lasting Light account. If the studio account itself fails, that's a ticket for your lead — not a you-problem.
It went sideways and I let it run
/rewind — or double-Esc on an empty prompt. Restore code, conversation, or both to any earlier point in the session. Nothing here is unrecoverable.
The installs, without the reading.
The four worth having on day two. Full library — 17 connectors, filterable, with trust levels and the ones we recommend against — is on Connections.
Unreal Engine
EpicC++ diagnostics
OfficialSentry — crash triage
OfficialJira & Confluence
OfficialIf the marketplace isn't found, run claude plugin marketplace add anthropics/claude-plugins-official once, then retry.
When you need more than a reminder.
This works with no signal.
Once you've opened the companion, this page plus the cheat sheet, skill library, connections, department pages, and FAQ are stored on your device. Useful on the floor, on a plane, or anywhere the studio wifi gives up. Pages update themselves whenever you're back online.