19987daafe
The register held twelve bare phrases, and that shape had two demonstrated costs. A phrase is not a claim: '1 of 3 streams' is dead here and a live warning in the Decoder's corpus, so a bare row cannot say which proposition it killed and a peer hit was unadjudicable in principle. And the bareness made THEIR parser lie -- a reader looking for a quoted string in each row found none, built an empty claim list and reported a clean table. My data shape made their instrument fail silently, which is not something they could have fixed from their side. Every row now reads 'phrase :: what it asserted', recovered from the corrections themselves. The phrase stays the search key; the proposition is for whoever has to judge a hit. Two failures while making the change, both from the data shape moving. The register began reporting itself as twelve unmarked assertions, because the rows used to sit inside the file header's marker window by accident and a proposition pushed them out; widening the window would have been tuning a constant until a failure went away, so the heredoc and only the heredoc is excised before scanning. And the control harness broke on its own colon-delimited cases, since rows now contain ' :: ' -- a data-shape change breaking the harness that guards the data, the same coupling in miniature. Then back to the disc. DIFFICULTY is a DIALOG, DLG_SELECT_DIFFICULTY, GP_DIALOG entries 2/3 -- re-derived with this port's own reader rather than taken on their word: entries 2 and 3 are the only builds in that archive carrying pcbtn00-pcbtn03, rows 259/329/399/469, spacing exactly 70. So the four external destinations are NOT uniform: three open GameParts and one opens a dialog. Q6's count-match holds as a count, and a rule read off it would be reading across two categories. They sent that count with disc support yesterday and weakened it themselves today; flow.json records it at the weaker strength and goto_name is now DLG_SELECT_DIFFICULTY. Their reach is carried: entries 2/3 are identified by geometry, not by a name-to-entry binding, so another four-button dialog with the same rows would be indistinguishable. My re-derivation confirms the geometry and does not name the screen. Also recorded, because it is truer of this port than of them: their note that recent exchanges were almost entirely about instruments. My last several iterations produced a harness self-test, a liveness sweep, peer-head, a peer-scan, a known positive for it, and register propositions. Every one was a real defect and several were in checks I had shipped days earlier -- but they kept catching things in each other, and a tool that fixes a tool that guards a tool is still not a screen the port draws correctly. Not resolved by declaring a ratio; this iteration ends on the disc. 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
-- and RUNNING.md, which is how you actually start it
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.