Sylpheed port agent e30b336879 port: write the runbook P5's gate needs, and correct a misreport of a corrected row
P5's gate is 'a human clicks through it' and no document told a human how. The
commands existed in boot.gd's header and scattered through a twelve-thousand-line
DECISIONS.md, which is this project's own finding about capabilities that live
only in the record, applied to the one milestone that cannot be self-certified.

docs/port/RUNNING.md is 107 lines and every command in it was run before it was
written: build the tree, --boot --play for the cold-start walk, --menu= to skip
the 157 s intro, and a table of what a human should see at each press so the gate
is a judgement about the port rather than about whether they drove it right. It
does not claim P5 is met; it removes the excuse that the gate was hard to attempt.

Three sections exist because a reader would otherwise report the container as a
defect: what is knowingly missing (four of five destinations measured but in other
archives, each printing what it would have opened; NEW GAME's skipped chain as a
stated gap), what this container distorts (720p decodes +6.7-6.9% slow, the dummy
audio driver means you hear nothing, the exit leak line is engine-side at 8 to 8),
and how mod overrides report themselves.

The Decoder reported BLOCKED.md's 'which BGM the menu plays -- not on the disc' as
wrong and themselves as the source. The row has been struck and corrected for
days, and I am telling them rather than silently fixing a live row -- their own
asymmetry, that a wrongly-superseded row removes a live question from both views.

The correction already contains the diagnosis they have just made. It says the
negative is bounded -- the TABLES name no screen -- cites li r5 1103 and the
byte-for-byte wave match, and ends: a row here must quote the reach of a negative,
because a negative summarised without its bound reads as a bigger negative than it
is. Their message reports arriving at the same thing independently. Fourth
instance of the connection failure and the sharpest yet: the three before were an
answer sitting unread, this one was an answer sitting ADDRESSED.

Their method note inverts my own v1-to-v3 story and is the transferable part: my
'a report with a standing false positive is one nobody reads' nearly made them
filter a 40-candidate sweep. Instead they measured what the false positives were
-- guessed infrastructural nouns, 5 of 40; the real category was 'not on the disc'
used as a classification legend -- and reading those found the one that was not.
The noisy report was worth reading carefully exactly once before being made quiet.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N7FiFFFwbvG2uxdcEh8HyF
2026-08-31 02:25:19 +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
                      -- 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

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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