The decoder died mid-task and it took four separate findings to explain, each of which read as something else: 1. OOM-KILLED, REPORTED AS A CLEAN EXIT. `OOMKilled: true` with **ExitCode 0**. So `--restart on-failure` would treat a memory kill as a successful finish and leave the agent down -- the policy has to be `unless-stopped`. 2. THE JOB CAP WAS SET AND THEN REMOVED THREE LINES LATER. build-reborn has always exported CARGO_BUILD_JOBS, but a raw `cargo test --release -p sylpheed-formats` never reaches the wrapper. Adding `-e CARGO_BUILD_JOBS` to the launcher did not help either: the entrypoint recomputes and exports over it unconditionally. An explicit value now wins, and says so in the log. 3. THE MEMORY CONSTANT WAS WRONG. `mem_gib * 2 / 3` assumes ~1.5 GB per job; release rustc on this workspace needs ~2 GB, and 4 jobs in 6 GB is what died. Divisor is now 2. 4. `--continue` CANNOT RESUME AN ABRUPT DEATH, which is the only kind we get. It resolves through ~/.claude.json's per-project `history`/`lastSessionId`, and MEASURED mid-session both are None -- they are written at a graceful shutdown. A killed container never writes them, so `--continue` answered "No conversation found to continue" with 33 MB of transcripts in the volume beside it. Persisting .claude.json did not help, because the fields were never populated in the first place; that attempt is removed rather than left in looking useful. The TRANSCRIPTS are durable and named by session id, so the entrypoint reads the id off the newest one for its cwd and passes `--resume <id>`. Verified on both agents: each reattached to its exact prior session and appended to the same file rather than opening a new one. The /loop prompt is still passed alongside `--resume`, so the loop is RE-ARMED rather than merely restored -- a resumed conversation with no wake-up scheduled answers once and stops, which looks like resuming and is not. Restarting into the same death is guarded at the other end: a start less than 120 s after the previous one begins FRESH instead of continuing back into whatever killed it. That fired correctly during this work. On resume the agent is told it was restarted, that its in-progress work is uncommitted in the tree, that any build or capture it had running did not finish and its absence is not a result, and which wrapper to prefer over a raw release build.
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.