022e3843ec
The leaf path, the plate pulse, the BGM level fix, the voice export, the focus fix and a diagnostic flag have all landed since the gate was last run. I had been verifying pieces against captures without once re-running the whole walk, which is the mission's actual test. It works. Nine steps unattended: down x4 through all five buttons, (A) into EXTRAS, (B) back to main_menu with FOCUS RESTORED to ptbtn05 (HANDOFF Q5's rule, live), up, (A) on OPTIONS which prints the archive gap rather than pretending. Every shot non-blank. Filmstrip shared as 1788027380-788b1faafc3e. THE SOUND IS VERIFIED BY A NULL CONTROL, NOT A DETECTOR. I first tried counting sharp level rises: it found ONE onset in the walk and THE SAME ONE in the music bed alone, which contains no cues -- a 50 ms envelope cannot see a short cue over the bed. The right response to a detector that cannot separate its control from its subject is to stop using it, not to widen the window until the numbers look better. So the technique that settled the voice: shadow the three cues with silence through data/mods/, run the identical walk, compare. cues playing peak +0.0003 dBFS RMS -18.36 cues silenced peak -4.74 dBFS RMS -20.78 Silencing three sound effects costs 4.74 dB of peak and 2.43 dB of RMS, and the walk's peak is SET BY a cue rather than by the music. The mod log confirms exactly three files shadowed. No detector, no threshold, and the control is the same run with one input changed. Recorded under the Dummy driver. It shows the cues reach the Master bus at the right moments; it does not show they are the cues the game plays -- that is Q8, and authored/audio.json still carries the offsets as measured. 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.