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The withdrawal last iteration was caused by `rm -f /tmp/xenia-canary.lock` -- the obvious way past a lock orphaned by kill -9, which also disables the guard for every later launch. Three instances ended up live at once, sharing /tmp/xenia_pad.txt and display :98, and silently confounded an input experiment. Care is not a fix, so this is tooling. ensure_single_emulator.sh counts live instances, stops them (plain kill, then -9, each with a bounded wait), verifies ZERO, and only then removes the lock -- refusing loudly if any remain. The lock is never removed before the condition it guards against is verified absent. FOUR scripts did the bare `rm -f`, and only two were mine from today: menu_loop_session.sh, title_draw_capture.sh, poke_control.sh and resume_reliability.sh. So the footgun was corpus-wide rather than introduced this session. All four now route through the guard. The guard is controlled rather than assumed: run against a deliberately started live instance it reports "1 instance(s) live -- stopping them", ends at 0 with the lock cleared, and exits 0. A guard that only ever passes on an already-clean slate would prove nothing. It also kills by process NAME. `pkill -f xenia_canary` matches the shell running it -- that has now cost this corpus three commands, one of them a cleanup that died halfway and left the very instances it was meant to remove. 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.