Sylpheed port agent f32d9e8f7d port: their REFUTED gap, in a register I had and fed nothing
Their finding: eight claims died this session and none reached REFUTED.md, the
file their brief says to grep before proposing anything. The pages are where a
refutation is argued; the index is where it is found.

Mine is the same gap and worse in one respect. tools/port/check-claims is a
register that FAILS the run if a refuted claim is quoted without its [refuted]
token, and it is in check-all -- so an entry enforces rather than merely
publishes. It held 7 rows, all from earlier work, and I added none while
withdrawing about 8 claims this session.

Registered four. The checker immediately flagged three still asserted unmarked,
and every one was inside a correction I had written myself -- the headings-audit
table rows explaining the withdrawals, and the EXTRAS withdrawal block. That is
the token doing what phrasing cannot: all three read as corrections to a human and
the marker fired anyway, because it tests for a token an author places rather than
for language that sounds retracted. Marked; the register now passes.

Scope: four of roughly eight registered. Not registered -- the compactness
precondition, the half-rate defect, 'the eras render identically', and my 16/16/18
rule -- each argued in its own correction and findable by nobody. Stopped at four
because each row costs marking every existing quotation by hand.

And nothing mechanically checks that a future withdrawal reaches the register.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
2026-08-30 19:23:11 +00:00

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-cli and 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

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.

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