c364cde476
Last iteration I retracted three claims because `--build 10/11` on GP_TITLE are entries 12/15, and named the untested remainder in my own report: how much else in the corpus used a build ordinal as an entry index. This is that sweep. `screen --build N` indexes a predicate-filtered list, so every rejected entry shifts every later ordinal. Disc-wide: 21 of 24 build-bearing archives diverge, 18 of them at ordinal 0 -- `--build 0` is entry 108 in each GP_MAIN_GAME_*2D, 24/26 in GP_HANGAR_ARSENAL/GP_READY_ROOM. GP_TITLE is the ONLY archive whose first ten ordinals are the identity, which is the sole reason 207 of the corpus's 226 build citations are safe. Second foot-gun: `--all` swaps the predicate and renumbers 18 archives, so `--build N` and `--build N --all` are not the same object. The instrument failed its control first. A version using parse_build as the predicate reported GP_TITLE as 16 builds, ordinal == entry throughout -- it would have certified the exact bug it was built to find. The shipped version uses the same predicates screen_builds() uses and reproduces `screen list` on GP_TITLE exactly. Audited all 226 citations. One real defect: a five-row table in ui-keyframe-time-unit.md headed "declared element (build 11)" spans builds 10 and 11 -- palogo_sqex is in 10. All five placements re-verified and correct, so the linear-ramp measurement is untouched; only the label was wrong. Fixed with a per-row bundle column. GP_DIALOG --build 0 and GP_DEBRIEFING_PILOTLOG --build 10 re-run and reproduce. Refutation attempted: sylpheed-port's corrected mid-ramp test rests on ptlogo_all_eff holding a=127 from t=112 to t=246. Their quote is exact and it is a plateau. The refutation fails; their correction stands. METHOD already carried the rule I broke, and ui-splash-addressing already said the splashes need --all. The failure was not missing knowledge -- it was addressing a bundle by index without grepping for the index first. 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.