Sylpheed port agent ffb54429fb port: S00A is closed as not obtainable, and Q5's shape is tighter than "unstable"
Three things folded in from the Decoder, none of which change the export.

S00A IS NOT OBTAINABLE HERE and it is the game that stops it, not the drive. The
drive works end to end -- main menu +0.999, newgame-difficulty +0.999,
newgame-selectdata-crash +0.997, with the focus detector validated live against a
known transition rather than trusted -- and then the guest throws at
PC: 0x82307128 x349 with no S00A stream ever decoding. Recorded in BLOCKED as a
route finding, with the consequence for me stated: THE CENTRE-CHANNEL RESULT
RESTS ON ADV ALONE. S00A was wanted precisely because its second stream is
digital silence where ADV's is a 0.60x copy.

Q5 GAINED TWO POINTS and the shape is sharper than "it varies": TUTORIAL x3, NEW
GAME x3 over six boots, and no other item ever observed. That does not change the
port's authored initial focus -- NEW GAME is still one of exactly two observed
states and is the state of the committed capture -- but it changes what would
REFUTE it, so the authored `why` now says so: a boot opening on LOAD GAME,
OPTIONS or EXTRAS breaks the two-way shape, and a rule predicting the split
deletes the entry outright.

`which-focus` NEEDS GODOT AND THE EXPORT TREE, so it cannot run in the RE
container. Recorded in its own header rather than left for the next agent to
discover, along with the pointer to the capture-only alternative and that tool's
own caveat: its offline controls are its calibration inputs, which is
self-consistency and not validation.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
2026-08-29 17:54:12 +00:00

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-cli and 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

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.

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