e53d687755
Some checks failed
The rotating OAuth credential file is why the agents kept parking, and a long-lived token removes the failure by construction instead of recovering from it after the fact. MEASURED 2026-09-04. ~/.claude/.credentials.json holds a refresh token that ROTATES ON USE. Seeding both containers from the host left three clients holding one token; the first to refresh invalidated the other two, and on the failed refresh Claude Code CLEARS the stored tokens -- writes empty strings, keeps the metadata, and parks at "Login expired". decoder credentials emptied 13:04:28 decoder last transcript 13:04:29 <- one second later The emptying and the park are the same event, which is why it never self-heals: not a stale token a retry could fix, but no token at all, with no browser in the container to complete /login. A hollow file passes every "does it exist" check -- 508 B healthy against 280 B emptied -- which is how three separate diagnoses missed it. And recovery re-armed the bug: after re-seeding, host and decoder held the IDENTICAL refresh token hash. `claude setup-token` issues a long-lived token against the same Claude subscription. Checked, not assumed: `claude auth login` defaults to --claudeai and it is `--console` that means Console/API billing, so this is not the separate API bill. `CLAUDE_CODE_OAUTH_TOKEN` is recognised by the installed binary. Passed as an ENVIRONMENT VARIABLE, both halves of the failure are gone: nothing rotates, so peers cannot invalidate each other, and there is no file for Claude Code to empty on a failure. Both launchers read $HOME/.sylph-claude-token if present -- same pattern as SYLPH_GIT_CREDENTIALS -- and both entrypoints skip OAuth seeding entirely when the variable is set, because copying the rotating file in would re-create the exact collision the token exists to remove. Inert until the file exists. Without it, nothing changes. Also worth recording for the preflight work: `claude auth status` prints JSON with loggedIn/authMethod/subscriptionType. That is a far better SessionStart assertion than checking a file exists, and it would have caught this on the first iteration rather than the third incident.
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.