The mounts landed but the agent could not learn of them: I documented them in CONTAINER-NOTES.md, which the decoder's prompt does not list, and then restarted the container -- so a fresh session with no memory of the exchange had a 586 MB database and a decompressed image sitting unmentioned in its filesystem. Now in the PROMPT itself, not only in a document, because the prompt is the one thing a new session is guaranteed to read. CONTAINER-NOTES.md is also added to its reading list. And the caveat that matters more than the asset. The .pe is PRIMARY -- the bytes the console executed. The database is somebody's ANALYSIS of them, produced by a disassembler that had to guess, and it is wrong in the ways disassemblers are wrong: misdecoded mnemonics where data was read as code, function boundaries short or long or merged or split, coverage missing entirely for code reached only by indirect dispatch, and names that are derived rather than symbols. So a finding resting on a database row is not established until the bytes agree: read the same address out of the .pe and check. Where they disagree the image wins, and the disagreement is itself worth recording, because it tells the next reader which parts of the database to distrust. A fast index into 9.2 MB of machine code, not a source of truth.
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.