f96f0cc985
Reported as a route finding rather than retried silently, because the cause is a defect in shared harness tooling that will bite the next drive. Drive 1 sat 396 s reporting other with two spurious menu hits while the guest was healthy and decoding audio throughout. screen_id.py thresholds on green and only returns title once the PRESS A plate has faded in, so it cannot see the plate-less build-4 title this corpus documents. It also calls difficulty-screen a menu. Both reproduce on committed frames, and newgame_path.sh, nav_probe.sh and boot_menu.sh all gate on it. Drive 2, with a classifier controlled 6/6, reached title_plate at t=398 s and drove on -- into a TUTORIAL MISSION. The screen 60 s after the last A correlates +0.960 with the committed tutorial-mission-reached-then-crash.png, and no S00A voice stream ever decoded. newgame_path.sh s header assumes NEW GAME is the first item so no d-pad movement is needed; that contradicts this corpus s own Q5 result, where four boots gave TUTORIAL, TUTORIAL, NEW GAME, NEW GAME. Incidental corroboration: BGM_103 s two waves decoded on reaching the menu, an independent runtime confirmation of the menu-music claim that HANDOFF rests on static code and a disc census. What is needed is a focus DETECTOR, and wrap-around means counting presses cannot substitute -- up from the first item goes to the last. I do not have one: a per-row brightness statistic failed its control, picking NEW GAME on the capture whose filename says OPTIONS. Also records a refutation attempt on the port s focus identification that FAILED. Differencing the two captures and binning by row appeared to show NEW GAME and EXTRAS changing, contradicting them. That was my error -- I placed row bands as rest_y plus or minus 24, treating the resting position as a band centre. The offset-independent check settles it: the changed bands are 254.9 design-y apart against a button pitch of 80, so the two focused buttons are 3 apart and not 4 -- NEW GAME to OPTIONS. Their identification stands. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Sylpheed
A clean-room reverse engineering and port project for Project Sylpheed: Arc of Deception (Xbox 360, 2007).
Three things live here, in one repository so that a change spanning them lands as one commit:
| The decoders | crates/sylpheed-formats — the disc's formats, read and verified disc-wide |
| The port | port/ — a Godot 4 project, plus crates/sylpheed-export which converts a disc into the open asset tree it reads |
| The corpus | docs/re/ — what has been reverse engineered, with its evidence, its retractions and its dead ends |
You need your own copy of the game. No game content is in this repository and none ever will be. The exporter reads the disc you supply.
The oracle is the real game
sylpheed-cliand the Explorer are tools for verifying our decoding. They are hypotheses under test and they have been wrong. When something must be checked against the truth, the truth is the game running in Xenia Canary, captured — not any renderer of ours.
This is stated first because getting it backwards is the most expensive mistake this project has made.
Layout
crates/
sylpheed-formats/ the decoders. Disc-wide verified; the corpus is its spec
sylpheed-cli/ headless tools -- render a screen, dump a table, probe audio
sylpheed-viewer/ the Explorer: a human's window onto the disc. STATIC data only
sylpheed-export/ disc -> the open, moddable asset tree
port/ the Godot 4 project. Reads open formats ONLY
authored/ decisions that are NOT on the disc, each with its reason
data/
base/ generated by the exporter. Gitignored, never hand-edited
mods/ drop-in overrides. Yours
docs/
re/ the corpus: findings, refutations, method traps
game/ how the game is navigated -- menus, modals, flight
port/ the port's mission, its handoff contract, modding rules
agents/ how the agent team works together
tools/ capture harnesses, probes, the share tool
exchange/ transient inter-agent files. NOT in git
docker/ the agent containers
Where to start
docs/re/INDEX.md— what is decodeddocs/re/REFUTED.md— what has been tested and dieddocs/re/METHOD.md— traps this project has already paid fordocs/game/navigation.md— how the game is navigateddocs/port/MODDING.md— why the asset tree looks the way it does
Xenia Canary is a separate repository: it is a fork tracking upstream, and it carries our instrumentation.
Conventions
Confidence is per claim, never per document: ✅ CONFIRMED · 🟡 PROBABLE ·
❔ HYPOTHESIS · ❌ REFUTED. A withdrawn result is kept with its reasoning
rather than deleted — that is why the numbers here can be trusted.