From catalog to real cloud play.

An evidence-led CARBON demonstration on Xbox Cloud Gaming: choose an entitled keyboard-compatible game, learn its menus, move and jump in a live single-player stream, and retain the observed controls for reuse.

Executed in Chrome · bounded single-player demonstration

Planet of Lana II

Game actually launched

1.1.10

Visible game version

Observed facts retained

ACTUAL CAPTURE

Watch the observed session

Genuine sampled browser footage: launch/menu navigation, opening cinematic, settings, rightward movement, jump and reverse movement. Captured segments retain their sample timing; unrecorded gaps are cut. No audio. The lower strip is cropped to exclude account identity. This is not a continuous 30 fps screen recording.

Download session video · Catalog recording · Capture timing and edits

DECISIONS GROUNDED IN EVIDENCE

What happened

Stage	Action / decision	Observed result	Proof
catalog	Search official Xbox catalog for Tetris	Tetris titles were listed; availability did not establish entitlement.	Evidence
candidate	Inspect Tetris Effect: Connected	Controller-only listing and game-purchase requirement; do not launch or buy.	Evidence
alternative	Inspect 3°C: Sand Puzzle	Keyboard and mouse supported but purchase required; reject candidate.	Evidence
entitlement	Verify signed-in Planet of Lana II detail	Play now: Included in your subscription; mouse and keyboard and single-player listed. User confirmed sign-in; identity checked locally.	Evidence
launch	Launch official cloud stream	Real main menu rendered, version 1.1.10.	Evidence
input	Click Play in stream	Platform requested fullscreen for mouse and keyboard. Native Chrome foreground and held Enter resolved navigation.	Evidence
newgame	Select first empty New Game slot using Enter	Started opening prologue; cinematic footage is not classified as gameplay.	Evidence
pause	Escape from playable scene	Pause menu exposed Resume, Control Layout, Reload, Settings, Journal, Main Menu.	Evidence
layout	Use S then Enter to select Control Layout	S moved menu selection; Down-arrow and pointer attempts had not changed it. Layout showed controller diagram despite keyboard prompts.	Evidence
settings	Inspect Settings > Controls	Pointing sensitivity 50%, vibration on and intensity 100% visible. No values changed.	Evidence
move	Hold D for 2200ms from opening ledge	Lana moved right, dropped to lower walkway and camera scrolled.	Evidence
jump	Press Space for 200ms	Captured airborne frame then landing in same area.	Evidence
casual	Reuse D for 2200ms under casual-play objective	Lana moved farther right toward swing set; same session, no isolated new save.	Evidence
reverse	Hold A for 900ms	Lana moved left toward bench.	Evidence
exit	Pause, select Main Menu, then close stream tab	Main menu visually confirmed; dedicated stream tab closed.	Evidence

Personas and coverage

Persona	Status	Result
First Timer	Executed: discovery and first input probes	Encountered access/input friction, learned S/Enter navigation, opened a new slot, then tested D and Space.
Settings Explorer	Executed: read-only inspection	Inspected pause menu, control layout, settings categories and controls values. No settings changed.
Casual Player	Executed: short reuse segment	Reused observed D movement, then tested A to reverse. Same game session; no independent persona benchmark.

One title, one account and one short opening scene. No puzzle completion, score, achievement, latency benchmark, long-session reliability or accessibility conformance claim. Persona objectives were applied sequentially by the host agent, not independent trained agents. No second game was played. The host app has not installed the packaged plugin.

Captured airborne Lana after a Space input — Observed jump after a bounded Space input, captured from the real cloud stream.

What the system learned

Observed adaptation replaced ineffective arrow/pointer menu attempts with S and held Enter, respected the platform fullscreen/focus requirement, and retained D/A/Space movement with evidence. The casual segment reused D successfully. The saved local policy is a deterministic memory of these observations, not a trained model; rebuilding it is not training. It was materialized after the session, so the live actions were selected by Codex rather than executed by the policy utility.

Codex's host language model interpreted screenshots and selected actions. The local utility retains dated facts and transitions, checks freshness and access gates, and proposes previously observed controls. It does not train weights or execute the browser.

Inspect local policy memory · Offline policy replay · Observation ledger · Reproduction workflow

Official Tetris listing showing sign-in, controller input and game purchase requirements — Tetris was evaluated as a candidate. Its listing required a game purchase, so the workflow chose an entitled keyboard-compatible alternative.

Environment and reproducibility

Jason’s Mac, Google Chrome via supported browser extension controls plus native Chrome keyboard input. Official Xbox US catalog checked 23 October 2026; authenticated cloud session resumed after the user confirmed sign-in. Evidence files carry UTC timestamps; the ledger records each observation. Account entitlement was verified on the game detail page, including Play now / Included in your subscription. No controller was detected. Source captures are retained locally; the review bundle excludes authentication screens and raw capture frames.

Official sources: Tetris search · Tetris Effect: Connected · 3°C: Sand Puzzle · Planet of Lana II.

Catalog and entitlement can change. Recheck visible eligibility and controls before each run. No purchases, subscription changes, messages, multiplayer sessions, platform bypasses or mobile simulators were used.