8b7d9f9d71
Its data-table section globbed `/work/sylph_extract/**/*.pak`, a path that has existed nowhere since `/work` became a clone. The glob matched nothing, so the section reported "0 disc names" and an empty table with no error — while the committed `docs/re/data/name-block-bases.txt`, generated back when the path existed, records 13 450. The disc is required for that section, so a missing or non-disc `$SYLPHEED_DISC` is now an error (exit 1), not an empty result. Verified: without the disc, exit 1 with the message; with `SYLPHEED_DISC=…/sylph_extract` (the original /work/sylph_extract), the section reproduces the committed figures exactly — 13 450 distinct disc names, 50 / 261 data-table rows, `sub_82341A20 r30 0x82088F94 217 names 89% disc`. ⚠️ The artefact itself is deliberately NOT regenerated. Rebuilt from the current database it changes findings — solved bases move, three 15/15 rows vanish, −280 lines — and the cause is the database, not this script: the string extractor's Shift-JIS path requires kana, so kanji-only Japanese (e.g. the allocator's `32B 未開放 %4d : 最大…使用量 %4d / %4d` debug lines) is not in `strings`, and the bases those names pinned no longer resolve (sub_8285F2C8 r5 @ 0x820AE7AC: 15/15 before, 7 now). Regenerating would bake that regression into a cited research artefact (`docs/re/structures/player-tuning-tables.md`). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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
-- and RUNNING.md, which is how you actually start it
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.