Reject references to incomplete synthetic blobs
Documents can attach blobs before upload verification ends. Require available status before creating a reference.
- Focused work estimate
- 1h 15m + prerequisites
- Priority in the scenario
- High
- Engineering practice
- State transitions · Transactions
Estimated field mix
- Storage systems50%
- Database engineering50%
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
Fictional archive Moss deduplicates generated attachments across documents within each organization. Use local files and transactional metadata stubs.
Setup prerequisites
- Generate duplicate and unique local byte fixtures.
- Create synthetic document references across two organizations.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
Acceptance criteria
- Available blob can attach
- Incomplete blob cannot attach
- Denied attachment creates no reference
Implementation constraints
- Status check and reference insertion share a transaction boundary.
Verification to include
- Attach verified fixture
- Race verification failure with attach
Deliverables
- Attachment admission and cases
Rollout and recovery
Pause attachments when availability cannot be established.
Value of the work
For the engineer: Practice reclamation races and explicit data-lifecycle guarantees.
For the team: Inspect whether storage cleanup avoids broken references and hidden retention.
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.