Behavioural tests through Mesh and CultCache for each rule the cut owns, and the persistence
contract's single-readability paragraph states that one runtime has one reader, lock and replace
and that only nothing at the path is missing. Not yet run: verification follows in one job.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Entries that share a schema id are one schema seen by different writers, so the writer lists every id any of them lists, in any
order: C# single-file and directory (CultSchemaCatalogEntry.MergeById), TypeScript and Python. Rust synthesises one entry per id and
has no such merge. An id that one entry owns and another lists as compatible names the owner in Rust, TypeScript, Python and the TS
inspector, as C# already did (own-id-over-compatible-v3). Also: a directory manifest in an unreadable format is the typed refusal
naming it, cultnet-py applies and reports a record under the local schema id, and Rust's error prints its cause once.
Vectors for the Mesh layout discriminator: a nil and an integer at catalog slot 5.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The older-layout reader refused the second current-layout entry on its own, so an unconditional fallback still refused the vector.
With one entry, only a store not in the older layout is refused for its malformed slot, and the fallback's condition is pinned.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
A record whose schema id the catalog lists only as a compatible id now opens (the cache resolved a persisted schema by entry id
alone). CultMesh's fallback to the older catalog-entry reader fires only for a store in that layout, decided by the entry's slot 5,
not for any decode failure, so a current-layout store with a malformed slot is refused as CultCache refuses it.
CultStoreUnreadableException.Path names the refused file. New vectors: compatible-id-only-v3 (accepted by all four) and three
current-layout catalogs with one malformed slot. The contract states the writer's invariant.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
variant-slot-v3 overrides the variant's name, which the reader requires of a variant, so C# reads it and the others refuse the
fifth slot. The legacy-layout catalog vectors carry an entry per schema, so a store the reader accepts differs from the one it
refuses only by the bytes after it. missing-schema-v3 is refused by C# too.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
CultStoreUnreadableException (a NotSupportedException) is the one refusal for a store file this runtime cannot read, thrown
by the single-file reader, the rewriting paths and CultMesh's reads, with the cause as the inner exception. The reader is exactly
one array of three slots (or an empty array): a header alone and an extra top-level slot are refused instead of read as empty or
skipped. CultMesh's older-catalog fallback is the same reader with the older entry reader, so it also requires one array.
Vectors: bad-body, header-only, missing-schema, variant-slot, extra-top-slot in the readability set, and a legacy-catalog store
with and without bytes after it for CultMesh. The persistence contract says what is true.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
F3: an override drifts exactly as the same member would on a plain record. A
slot the type dropped is ignored and reported by the store's schema resolution
(LastSchemaMigrationReports), the one surface a plain record uses; a value that
no longer decodes refuses the load, naming the variant and member. The second
report surface (VariantMigrationReports, the per-variant report map, the
catalog slot-name plumbing) is deleted.
F4: an override for a slot the type does not have, or a value that does not
decode as the member, is refused at write. Drift is for type changes after the
fact, not for bad writes. F5: two overrides of one slot are refused.
F2: a variant that shares an indexed value with another record is refused,
naming both keys and the index (the R6 rule extended to [CultIndex]); plain
record duplicate handling is unchanged.
F7: a flatten now resolves against the same batch, so a base edited in that
batch is in the flattened record; and the directory store refuses to load a
variant page as it refuses to write one.
The C1 vector's big variant now overrides its indexed code, as the unique-index
rule requires.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
The legacy catalog layout reaches CultMesh's fallback reader, and a nil header
was the only defaulted header; each gets one vector or test. The C# store
tests catch the refusal where the store attaches.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
An unknown store header, a record slot beyond four with a full payload, the
v2 variant record C1 will write, and a v1 store written by the base-commit
Python writer. Every runtime's tests read these bytes.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
