Record a reopened case without silently resetting attachment history
Reopening a case overwrites its closure timestamp. Support can no longer explain whether an attachment was eligible when a purge started.
- Focused work estimate
- 3h + prerequisites
- Priority in the scenario
- High
- Engineering practice
- Lifecycle history · Policy versioning
Estimated field mix
- Privacy engineering60%
- Data engineering40%
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 support service keeps uploaded diagnostic files indefinitely. The exercise policy expires attachments 30 days after case closure, while a separately authorized investigation hold pauses removal. These are invented product rules, not legal advice or compliance certification.
Setup prerequisites
- Create synthetic cases, attachment metadata and a fake object store with controllable failures.
- Use an injected UTC clock and an authorized operator fixture; no real support uploads are needed.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- RRETENTION-101 · Calculate attachment expiry from the case closure instant
- RRETENTION-103 · Require scoped authority to place an attachment on investigation hold
- RRETENTION-102 · Inventory every storage location used by one support attachment
- RRETENTION-104 · Preview the attachment purge set with stable decision reasons
- RRETENTION-105 · Recheck holds when a queued attachment purge begins
Acceptance criteria
- Append case lifecycle events and derive the current retention clock under an explicit reopening rule.
- Preserve previous decisions and completed removal history.
- Prevent reopening from implying deleted attachments can be recovered.
Implementation constraints
- Define the exercise rule before coding: reopening pauses eligibility; a later closure starts a new 30-day period for remaining attachments.
Verification to include
- Reopen before expiry and verify ineligibility, then close again and verify the new boundary.
- Reopen after confirmed purge and show the attachment remains removed with its original decision history.
Deliverables
- Reopening policy and historical decision tests
Rollout and recovery
Version the policy and preview changed eligibility before activating the new clock behavior.
Value of the work
For the engineer: Practice temporal policy, deletion races, exception authority and truthful recovery reporting.
For the team: Develop inspectable retention behavior that a company can review against its own approved data policy.
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.