dc36c85f85
sylpheed-port inverted my documented->exists sweep into parsed->documented and found three live undocumented flags, with the framing that a capability existing only in an 11 000-line record is, to a reader of the interface, a capability that does not exist. The mirror on my side is env vars the CODE reads, checked against the docs. Like theirs it enumerates, so it completes rather than samples. 41 read by crates/, 19 documented, 22 not. The 22 split cleanly: 7 are read only in examples/ (per-example filters and dump paths, reachable only by editing an example's command line), and 15 are read in src/ -- live capabilities of the library and CLI. Ten are mesh/3D toggles and five are XPR_* texture-decode toggles. FOR THE PORT: none of the 15 is in the UI path. Every env var ui_layout.rs and the screen commands read is documented -- SYLPHEED_REST_RULE and SYLPHEED_KF_TIME_LEGACY. The menu lane is clean in this direction. But the five XPR_* are texture-decode toggles and the port consumes textures, so if a sprite comparison ever disagrees those are the knobs and they are invisible from the interface. LIMIT, stated rather than glossed: I verified NONE of the 15 end to end. `texture export` takes a loose file and the disc keeps its textures inside paks, so the check cost more than the answer was worth here. That matters because the port found --no-hold parsed, documented AND INERT under an interaction with --time: "parsed and reachable" is not "works". The honest claim is that 15 undocumented env vars are READ, not that 15 capabilities exist. METHOD: sweep the surface in both directions, and note that both directions enumerate and therefore complete rather than sample -- rare enough in that file to be worth preferring when available -- while neither establishes that the thing works. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
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.