ddc2a8e36b
Closes the open second reading in ui-forced-backdrop.md: that a .tbm contributes no pixels, leaving 24 of its 62 deciding verdicts harmless rather than correct. The TUTORIAL screen was reached and captured. It carries a full-screen blue circuit/hex background. GP_TUTORIAL build 0's element 0 is pubase.tbm with pivot (640,360) -- 1280x720, the only full-screen TEXTURED element in the bundle; the one other full-screen element is pueff00.prm, an untextured primitive the colour census puts at pure black. Our render of the same build is the identical layout on pure black, 6.0-6.4 % inked against the game's 99.7 %. The only difference is the background and the only thing it can be is the .tbm. So the 24 .tbm verdicts are correct rather than harmless, and they are load-bearing in the full sense. Reach: one .tbm observed; the class question is settled, the ten other families are not individually seen. Also: screen render is wrong on every screen carrying a .tbm -- it drops the background silently, with no diagnostic. And the identification is worth its own METHOD entry. Two statistical identifiers were built. Masked correlation FAILED its control, picking EXTRAS over the known main menu by 0.004 because the shared background dominates. A high-passed variant PASSED by 1.28x, which is not a margin that licenses identifying an unknown, so it was not used. The screen says TUTORIAL across the top. Ask whether the artefact already states the answer before building a matcher. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
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.