Spec-reviewer + code-reviewer findings applied:
Must-fix
- Filter combinator AND-semantics: tactic+technique+subtechnique now intersect
(one IN subquery per facet) instead of being pooled into one OR. Reviewers
flagged both the wrong default semantics and the theoretical UUID-collision
risk of pooling tactic/technique/sub UUIDs into a shared list across
three columns.
- Front-end mutation cache hygiene: updateMeta + setTests both
`onSettled: invalidate` so a partial failure leaves the cache consistent.
Should-fix
- Per-scenario pg_advisory_xact_lock on set_scenario_tests — serialises
concurrent reorders, mirrors M4 /mitre/sync pattern.
- Backend/front consistency on duplicate tests in a scenario: the
UNIQUE(scenario_id, position) constraint already allows the same
test_template multiple times (chained ops), so the catalogue picker no
longer excludes already-picked items.
Nice-to-have
- N+1 eradicated in test_template view rendering: _to_views_batch
builds {uuid → MitreRow} maps in 3 queries up-front; list endpoint
now issues 4 queries total regardless of list size.
- Wire-level item length caps on tags (64) and expected_iocs (255)
via Annotated[str, StringConstraints(...)] — returns 400 instead of
bubbling up StringDataRightTruncation.
- 4 new pytest covering the AND-filter, extra="forbid" rejection,
empty mitre_tags clearing, and the 65-char tag cap. Total now
81 pytest + 38 e2e pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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