* fix: apply session scoping to all working-representation query paths
session_name was only applied to the recent-documents query in
RepresentationManager; the semantic and most-derived paths ignored it,
so limit_to_session leaked cross-session conclusions into perspectives.
- Thread a session allowlist (session_names) uniformly through all
three query paths; pushed down to pgvector and external vector stores
- Accept a list so the upcoming session-allowlist API reuses this path
- Fail closed on an empty allowlist (downstream stores drop empty IN
clauses, which would silently widen scope)
Fixes DEV-1994
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* feat: bare-list membership sugar in the filter DSL
{"session_id": ["s1", "s2"]} is now shorthand for
{"session_id": {"in": [...]}} on regular columns, generically
(peer_id, etc.). JSONB metadata columns are excluded — a bare list
there keeps JSONB containment semantics, unchanged.
Previously a bare list on a regular column compiled to a type-mismatched
equality that matched nothing, so this is strictly additive.
Also translates the same shape in the turbopuffer/lancedb filter
builders, and fixes lancedb dropping empty IN clauses (fail-open) —
an empty membership list now emits an always-false condition.
Groundwork for DEV-1995 (session allowlist via the existing filters
DSL, no new API params)
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
* fix: fail closed on empty session allowlist across all filter builders
Empty session allowlists relied solely on the early-return guard in
_get_working_representation_internal. The layers below it were
inconsistent, so a future direct caller (the DEV-1995 allowlist API)
would silently widen scope instead of failing closed:
- _build_filter_conditions used a truthiness check; an empty list was
treated like None and dropped the filter. Now uses `is not None`,
matching the recent/most-derived SQL paths.
- turbopuffer emitted a bare `In []` with undocumented (possibly
fail-open) semantics. Now emits an explicit always-false predicate,
mirroring lancedb's `1 = 0`.
Also extract the duplicated JSONB column tuple in filter.py to a
JSONB_COLUMNS constant.
Tests exercise each fail-closed guarantee at the layer it lives, rather
than masking it behind the early-return guard.
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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
672f4c6637