620ec5e60b
Two new findings from the human, both about WHEN a title animation starts, and both handed over rather than guessed: F5 Does (A) SNAP the title to finished, or ACCELERATE it? The human says they cannot tell and is right that they cannot -- a three-frame acceleration and a one-frame cut look identical to an eye. Two routes that should agree: a per-frame capture (acceleration shows intermediate alphas, a cut shows none) and the code (assigning a target time and raising a rate multiplier are different instructions). Their "looks more like a snap on multiple attempts" is recorded as a PRIOR, not a result. F6 The title's sweeping white glow -- ptloop01/ptloop02, the blue PCB-like lines -- starts only when the plate appears in the real game, and starts earlier in the port. A lead from the exported declaration, mine and unverified: those elements are keyed at t = 0, 70, 100, 238, 250 while the plate reaches full alpha at 236, with pteff02 keyed at exactly 236 and ptlogo_back2eff and ptcopyright at 238. 236-238 is a synchronisation point in the declared data and a human just reported a behaviour change there. Flagged AGAINST itself too: 238...250 looks equally like an exit ramp -- ptcopyright uses that shape and starts nothing -- and the sweep lives in a nested .rat leaf with its own timeline. F6 bears on clock: "shared" and on F4: if a title element does not move until the plate arrives, either the declared data says so and our keyframe reading is wrong, or something at the plate's arrival STARTS it, which is a mechanism nobody has proposed. And the process change, which is the human's and outlives this item: "attacking the 'whole' mission was too big for them to handle. Split the given missions and tasks into even smaller tasks which they can tackle and give to a human for feedback." PROTOCOL.md gains "Work in units a human can check in a minute". A milestone is not a unit of work, it is a bag of them. A unit is right-sized when it ends in something a person can judge in under a minute WITHOUT READING ANYTHING, and each one states its question, what the human looks at, and what it does NOT cover. Do one, hand it over, stop -- an unverified fix under a second change makes a regression two-variable. The evidence for the rule is this week: the splash sat through a whole milestone and took one day once scoped to "does it animate?". The bar is a HUMAN check, not a green tool -- three instruments passed a frozen screen.
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.