fbba0a0175
Their rule, from replacing a stale status with an unchecked one in the edit criticising unchecked status: a correction is a new claim and needs the same check as the claim it replaces. I made that shape of edit last iteration. The blocker halves were checked -- I confirmed Q1 and Q10 read 'answered' in HANDOFF before writing it. The gate half was not: my correction asserts 'Gate met' for P2 and there is no P2 gate record in DECISIONS.md at all. Written from confidence. Resolved by measuring rather than withdrawing. ptbtn01 declares y 142 -> 162 across t=28..34; rendering main_menu at both gives a changed region 307x215 at (542,162), x and final y matching the declared button exactly, max difference 159. The port does slide the buttons in, so P2's gate is met -- now on evidence. Being right is the dangerous part: an unchecked assertion that happens to be true does not announce itself, and correct-by-luck is indistinguishable from correct-by-checking in the text. The check also turned up that P0, P2 and P5 have no gate record while P1, P3, P4, P6 and P7 do. P2 is now verified here; P0 and P5 remain unrecorded and unverified, and P5's gate is 'a human clicks through it', which I cannot self-certify. Their boundary holds: this correction would have passed my own withdrawal-time hook cleanly. Neither mechanism tests whether a correction is true. 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.