Add _system/brain-format.json { dataFormat, indexEpoch } + a sync brain.formatInfo()
accessor + a compiled EXPECTED_INDEX_EPOCH, the surface a native provider reads at
init() to drive whole-brain auto-upgrade, and brainy's own derived-index
rebuild-on-format-drift trigger (closing the gap where JS indexes rebuilt only on
size()===0, never on a format-version change).
indexEpoch is shared and lockstep-bumped with the native provider on any coordinated
release whose on-disk derived-index format changes; dataFormat is brainy-owned. On open,
the marker is read in the store-open phase BEFORE provider construction (so formatInfo()
is synchronously available at the provider's init); a drifted or absent epoch rebuilds
the derived indexes from canonical records, and the marker is stamped only AFTER the
rebuild verifies (build-new -> verify -> stamp; a crash before the stamp re-triggers the
idempotent rebuild). brainFormat.ts is the single source of the shared constants.
6-case test; 1724 unit green.
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|---|---|---|
| .. | ||
| add.test.ts | ||
| batch-operations.test.ts | ||
| brain-format-handshake.test.ts | ||
| counts-by-type-fix.test.ts | ||
| fill-subtypes.test.ts | ||
| find-agg-edge-cases.test.ts | ||
| find-complement-operators.test.ts | ||
| find-include-vectors.test.ts | ||
| find-index-integrity-guard.test.ts | ||
| find-orderby-pagek.test.ts | ||
| find.test.ts | ||
| get.test.ts | ||
| graph-analytics.test.ts | ||
| graph-export.test.ts | ||
| graph-native-routing.test.ts | ||
| graph-subgraph.test.ts | ||
| hybrid-search.test.ts | ||
| metadata-provider-contract.test.ts | ||
| relate-duplicate-optimization.test.ts | ||
| relate.test.ts | ||
| related-node-bidirectional.test.ts | ||
| related-visibility-fast-path.test.ts | ||
| reserved-field-policy.test.ts | ||
| similar-threshold.test.ts | ||
| update-reserved-metadata-remap.test.ts | ||
| update.test.ts | ||
| upsert.test.ts | ||
| visibility.test.ts | ||