Expand recurrence within a bounded availability window
An unbounded recurrence rule exhausts the availability request.
- Focused work estimate
- 3h 30m + prerequisites
- Priority in the scenario
- High
- Engineering practice
- Recurrence · Resource bounds
Estimated field mix
- Integrations40%
- Performance engineering40%
- Backend20%
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 booking service supports consultants in multiple time zones. Recurring events, revoked access, and delayed callbacks cause missed conflicts.
Setup prerequisites
- Author synthetic calendars and a local provider double with recurrence, timezone, and access-revocation cases.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
Acceptance criteria
- Require finite query start and end.
- Limit emitted occurrences and processing work.
- Honor exclusions and changed single occurrences.
Implementation constraints
- Reject unsupported recurrence forms explicitly.
Verification to include
- Expand a weekly rule with an exception.
- Bound an excessive recurrence and reject unsupported syntax.
Deliverables
- Bounded recurrence engine.
Rollout and recovery
Start with declared supported rules; preserve unsupported events as unavailable context.
Value of the work
For the engineer: Practice temporal modeling, synchronization lifecycles, and privacy-preserving projections.
For the team: Reduce scheduling ambiguity through explicit availability contracts and recoverable synchronization.
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.