The Revision History chapter ran G2a straight to G-minor to G3a, with no row
for genesis tranche G2b anywhere -- so the accept-set raise
OperationEnvelopeBlock 2 to 3, the first accept-set move since G2a explicitly
recorded staying at 2, reached the normative tables and never the history.
G2b's own contract required that row; 13c3d2f edited 99 lines of
binary_format.tex and added none of it.
The stack is unpublished, so the chronology is restored rather than patched:
G2b lands as its own row between G-minor and G3a, G3a renumbers up, and the
PDF is regenerated.
The new epiphany-testkit guard makes recurrence detectable. Bare name-presence
would not have: with the G2b row deleted, "G2b" still occurs inside the chapter
in G3a's prose, so a substring guard would have been born green. The guard
requires a principal marker -- the rung name preceded by the row's separator --
strictly ordered across the four standalone-row rungs G2a, G-minor, G2b, G3a,
with G2b's content anchored inside its own row segment so G3a's row cannot
satisfy it. G1 is deliberately unguarded: it has no standalone row, being
recorded retroactively inside G2a's. No document version number appears in the
test, in its comments, or in this message.
Executed against spec/CONTRACT_GENESIS_G3A_UNDO_REPAIR.md Packet B.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QjsEnYhm1gPpf6ii2iFxFV
Levi Neuwirth
6170015a8c