Read-only packet. Walks each of the nine ChunkKind roles' payload encoders
transitively and records every discriminant vocabulary actually emitted,
with every variant classified baseline / post-baseline native / escape.
Two vocabularies outside the OperationKind/Tag/Payload trio have real native
appends: ReanchorReason (SameCanvasNearer = 6, Pass-12 G-pass) and
PreconditionFailureReason (10-15, four separate tranches). Fourteen further
escape-carrying enums checked and clean, recorded as evidence.
Two findings the plan's section 3 table did not name. The canonical base
reaches RepairKind, ReanchorReason, and SpellingNominal, and ReanchorReason
is one of only two vocabularies with an append. And the manifest reaches
OperationKindTag with no operation envelope in it at all, through
ExtensionDeclaration::edit_barriers -> EditBarrier::prohibited_operation_kinds
- the disposition-(c) crossing, realized in a role the plan never mentions.
binary_format.tex:2373 is recorded as stale narrative: it says OperationKind
and OperationKindTag "append at >= 30" and its history names only 24-29,
while 30-33 are taken. The normative tables at :1443 and :1526 are current
and authoritative; the .tex correction is deferred to the G-minor
implementation, which must touch that paragraph regardless.
CompressionAlgorithm is ruled out of scope for schema-minor epochs: it is
ChunkRef transport metadata, not a discriminant emitted by the payload
SchemaVersion governs, and it is deliberately excluded from chunk identity.
Recorded so it is not reopened.
The epoch space stays global, but baseline classification and introduction
events are per variant per vocabulary. The tentative ladder is incomplete -
Push 3, the Pass-12 G-pass, and M2c are unplaced - and must not be ratified
as written.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QjsEnYhm1gPpf6ii2iFxFV
Levi Neuwirth
c63258d32a