Find legacy cross-tenant references without exposing case contents
The new constraint cannot validate until operators understand existing mismatches, but incident exports should not include case bodies.
- Focused work estimate
- 3h + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Data reconciliation · Privacy
Estimated field mix
- Database engineering50%
- Privacy engineering30%
- Security20%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
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Project context
A fictional case-management application filters most requests correctly, but imports and background commands can connect a case to another organization's project or assignee.
Setup prerequisites
- Create two synthetic organizations with overlapping display names.
- Use repository-level authorization and migration-backed constraints.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- ATENANT-101 · Map tenant ownership for case-management entities
- ATENANT-102 · Add composite uniqueness for tenant-owned relationship targets
- ATENANT-103 · Reject null organization scope in protected repository methods
- ATENANT-104 · Enforce same-organization case-to-project references with a foreign key
- ATENANT-105 · Keep case-comment inserts scoped during concurrent parent changes
- ATENANT-106 · Make bulk case imports validate every tenant relationship before commit
- ATENANT-107 · Carry tenant identity through background case-processing commands
Acceptance criteria
- Report safe entity IDs and mismatch category only.
- Bound scans by table and cursor.
- Do not automatically choose which tenant should own an invalid relationship.
Implementation constraints
- Make the reconciliation command read-only.
Verification to include
- Scan a valid synthetic dataset with no mismatches.
- Insert a deliberate legacy mismatch in a fixture and identify its exact relationship.
Deliverables
- Tenant-integrity report
Rollout and recovery
Run before constraint validation; repair only reviewed mappings through audited commands.
Value of the work
For the engineer: Practice tenant-aware keys, foreign keys and direct-write denial tests.
For the team: Review defense in depth for data isolation across ordinary and privileged writers.
Evidence boundaries
Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.
Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.