49958ff090
Last iteration I enumerated three free-running clocks, wrote that the leaf is pinned only by --leaf-time, then tested reproducibility without passing --leaf-time and concluded nothing free-runs on the menu path. The answer was one paragraph above the experiment that contradicted it. My own flagged weakness found it: deliberate wall-clock variation via --script=wait:N, putting the capture at t=96 units against t=369. Spin pinned only, wait 0.5 vs 5.0 differs by max 91.19 per channel; with --leaf-time=0 added it is byte-identical. draw_leaf_for is ptloop01/ptloop02, present on main_menu and not just the title, which is why that row drifted. verify-capture passed --loop-phase=0 and not --leaf-time=0 -- I fixed the clock I had been bitten by and left the one I had merely listed. Enumeration without follow-through fails exactly like no enumeration. Both are now pinned at all six render sites. main_menu returns 13.21 across three runs and two renders after different waits are byte-identical. The number moved 13.26 -> 13.21 and that is NOT an accuracy improvement: pinning the leaf at phase 0 puts ptloop01/02 at one specific pose rather than wherever the wall clock left them. A different configuration, now reproducible. Which pose the game shows at rest is not settled by this. 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.