abaa9de4e3
docs/game/navigation.md is a second document unreachable from main, and
authored/flow.json is its executable form -- nothing in the port fails when a
label drifts from it. Three more checks in contract-check, anchored on the walk's
own text: the five main-menu labels in order, EXTRAS' three items, the cursor
wrap. Ten checks now, ten known negatives, all passing.
The manual audit behind them found nothing else: initial focus is already
kind:authored citing Q5's instability, left_right is an explicit no-op,
auto_repeat is measured, unexported destinations are marked blocked with reasons.
Refutation target: the walk's claim that the ring is the ONLY thing moving on the
settled menu. Cannot be tested against the game from here, but can be tested
against my renderer, which is the direction that matters. Five renders across a
full ring cycle: 1428 of 921600 pixels vary, 0.155 %, one 46x44 cluster beside
the focused item. The port animates one ring, not five -- worth checking, since
all five ptbtn01f..05f declare the same 120-unit cycle and a renderer running all
of them would look identical until you diffed frames.
Then I nearly filed a serious P5 defect against myself: sweeping --leaf-time with
the ring pinned moves 10.4 % of the frame, full-screen. It is not a defect. That
pin addresses the build-in -- ptloop01 runs t=0..600, ptloop02 t=0..720 -- and at
settle both park off-screen at x=1521 and x=-839, with loop_leaf_on_screens
scoped to the title alone. The general form: a pin that can address states the
screen never occupies will manufacture defects on demand, which inverts what the
three pins are for.
The +0x08 ask came back answered and is not consumable. ui_layout::loop_length_units
is public at b5df02a and byte-for-byte what screen.rs holds, so the deletion is
one line -- but Cargo.toml pins a tag, no tag carries that commit, and swapping a
deliberate pin for a bare rev on an unmerged branch is not a move to make alone.
Asked for a tag; keeping the guarded local read.
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.