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They proposed posing at the screen's settle instant, found their control could not validate it (a candidate cannot be adjudicated against the incumbent it replaces), and said the oracle number decides. I had only run it on one screen. Three screens adjudicate cleanly and all favour the candidate: title 0.21% vs 1.82%, publisher_logo 0.01% vs 0.75%, developer_logos 0.01% vs 0.33%. The settled figures match verify-capture's independently recorded numbers to the digit. Two rows are not evidence. My first table had main_menu at 3.29% for the candidate, losing by 13x -- the opposite direction from everything else, with no plausible story. --screen= shoots immediately, so that render drew 6 of 16 elements and skipped ptframe1, ptframe2 and ptmsg as transparent at t=9. The same wrong-frame error as title_jp, caught before publishing only because the direction made no sense. Posing them properly needs --menu, which also draws the focus record, while the rest column draws none. verify-capture's header records main_menu without focus at 2159 px = 0.234%, and my incumbent figure is 0.25% -- so the entire gap on those two rows is the focus record, not the pose. Marked confounded rather than counted; a 5-0 was available by not looking. Does not validate their implementation: I tested the port's settled pose, not UiBuild::settle_time(). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
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.