Run 204 gave this repository its first clippy measurement — 48 errors, 43 of them in `sylpheed-formats`. This clears that 43 to zero under the exact invocation CI runs, `cargo clippy -p sylpheed-formats -- -D warnings`. Why this crate first, and why it is safe to touch: Every one of the 43 sites was checked against the line ranges that `auto/frame-blend-draw-path` (495 commits) and `auto/port-p6-audio` (366) actually modify. None of them overlap. Eleven of the fifteen affected files are byte-identical on both branches, including `mesh.rs` and `texture.rs`, which carry 28 of the hits between them. The three sites in `audio.rs`, `ui_layout.rs` and `slb.rs` that live in files those branches do change fall outside every modified hunk. The collision argument that defers #12 does not transfer here; it was tested rather than assumed. It also unblocks a measurement. `-D warnings` turns a lint in this crate into a hard compile error, so its dependents never build — `sylpheed-cli` and `sylpheed-viewer` have never been linted at all, and viewer is the largest crate in the workspace. Both depend only on `sylpheed-formats` (`sylpheed-export` pins it from a git tag instead), so this commit is what makes their real counts knowable. 38 applied by `cargo clippy --fix` — chunks_exact_to_as_chunks, manual_div_ceil / is_multiple_of / range_contains, unnecessary_map_or, needless_borrow, let_and_return, dead_code, unused_mut/variables. Purely local expression rewrites: 38 insertions, 39 deletions. 2 by hand: a doc continuation that markdown was parsing as a list, and `d / frame` behind a `frame > 0` guard becoming `checked_div`. 3 `#[allow(clippy::too_many_arguments)]` with a stated reason. On those three allows: 8 parameters against a threshold of 7, in the mesh anchor path. The real fix is a shared params struct across `anchor_pool_mesh`, `validate_block` and `validate_block_report` — the latter two take the same eight arguments and one delegates to the other — which is a change to the decoder's signatures and belongs to whoever owns that path, not to a CI-lint pass. This is not the shape PROTOCOL.md forbids. `continue-on-error` suppresses everything, present and future, at the job level, and cannot tell "not yet" from "no longer". A site-local `#[allow]` with a reason is a decision recorded where it applies: one lint, one function, and any new violation anywhere else still fails the build. `sylpheed-export`'s remaining 5 are deliberately untouched — three of them sit inside hunks both long-lived branches modify, and that crate blocks nothing. Left for #13. Refs #13 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01McNbzUeq1KRBWs4G6X2YVj
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.