Stop provider calls immediately after access revocation
Revoked calendars remain cached and continue receiving background refreshes.
- Focused work estimate
- 3h + prerequisites
- Priority in the scenario
- High
- Engineering practice
- Authorization · Lifecycle
Estimated field mix
- Security50%
- Privacy engineering30%
- Integrations20%
Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.
Review it, then add it to your workspace.
The board opens an editable draft; nothing is saved until you confirm it. Sign-in and workspace permissions apply, and Demo boards remain ephemeral.
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.
- BCALENDAR-101 · Distinguish all-day events from timed calendar intervals
- BCALENDAR-102 · Resolve daylight-saving gaps and repeated local times
- BCALENDAR-103 · Expand recurrence within a bounded availability window
- BCALENDAR-104 · Apply event revisions without reviving cancelled occurrences
- BCALENDAR-105 · Use incremental sync tokens without losing full-resync coverage
- BCALENDAR-106 · Project busy intervals without exposing event descriptions
Acceptance criteria
- Invalidate active grants and queued refresh authority.
- Suppress cached private availability after revocation.
- Make reconnect an explicit new authorization flow.
Implementation constraints
- Do not retry authorization failures as transient errors.
Verification to include
- Refresh an authorized calendar.
- Revoke access mid-queue and verify no further authorized reads occur.
Deliverables
- Revocation handling.
Rollout and recovery
Fail closed on uncertain grants; retain only allowed operational metadata.
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.