Claude
1fec20a2a3
Removes the last reason this repository depends on its own history.
The pin was deliberate and carried its own exit condition, written into the
comment above it: "revert to the path dependency the day the tag is an ancestor
of `main`." Measured -- `formats-pin-2026-09-01` (e2630413) IS an ancestor of
`main` now, so the condition is met, and the cost the comment named goes away
with it: while the pin held, `sylpheed-cli` built from the workspace crate and
the exporter from the tag, so `tools/port/verify-screen` compared two eras
instead of detecting drift. They read one decoder again.
It also removes a failure mode nobody priced in. Depending on this repo by tag
is what made the #49 history rewrite break the build: every commit was replaced,
the locked rev vanished, and clean checkouts could not resolve it while the
rewriting machine kept working off its `~/.cargo/git` cache (PR #60). A path
dependency cannot fail that way. `Cargo.lock` now has ZERO references to
Sylpheed.git.
⚠️ This moves the exporter across a 243-file decoder change (8 467 insertions),
so it was gated on the full suite rather than a compile:
45 suites / 377 passed / 0 failed / 14 ignored, cargo exit 0
45 binaries launched, 45 reported (a SIGKILLed suite prints no result line
and would otherwise vanish from the tally)
corpus report: PRESENT for disc, res3d and iso
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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.