Closes FLEX-WP-0005 T04. Validates ADR-003's commitment to shape the
standalone core for cheap Topaz adapter work.
Spike output:
- docs/topaz-mapping-spike.md — vocabulary map (subject, group, tenant,
knowledge_base, document, plus parent / owner_team / reader / steward /
member relations), Rego module shape, decision envelope, wire-protocol
ranking (gRPC primary, REST fallback, embedding rejected), schema
restatement recommendation, implications for FLEX-WP-0002 / 0004.
- examples/topaz/ — runnable docker-compose deploying Topaz with the
flex-auth-shaped manifest. seed and probe one-shots cover three
scenarios: alice (steward) allow, bob (group→reader) allow, eve
(outsider) deny. End-to-end green on 2026-05-16:
probe: steward-allow OK (check=true)
probe: reader-allow OK (check=true)
probe: outsider-deny OK (check=false)
probe: all checks passed
Key findings recorded as Implementation Notes in the spike doc:
- Rego input contract bridging (Topaz raw shape ↔ flex-auth canonical
shape) is adapter scope, not core scope.
- Topaz identity objects are a Topaz convention; the adapter
materializes them at directory import time.
- Directory-only permission resolution is sufficient for the common
case; Rego is reserved for context-dependent decisions.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
