Show operators which bookings need recovery after reconnect
After reconnecting an account, operations cannot tell which bookings were created, moved, or cancelled during the outage. Build a scoped recovery list with safe identifiers and next actions.
- Focused work estimate
- 1h 30m + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Operations UX · Authorization · Recovery workflows
Estimated field mix
- Integrations50%
- Backend30%
- 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 consultancy books appointments across time zones. The first connector duplicates events after timeouts and offers slots during stale calendar sync. Use a local calendar-provider double and synthetic calendars.
Setup prerequisites
- Create a local provider double for free/busy, event creation, updates, cancellation, and expiring tokens.
- Use synthetic calendars and an injected clock; no calendar account or outgoing invitation is required.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- CAL-101 · Reject local times that do not identify one instant
- CAL-102 · Merge overlapping busy intervals before offering slots
- CAL-103 · Label unavailable or stale free/busy data instead of showing open slots
- CAL-104 · Reserve a slot atomically when two customers choose it
- CAL-105 · Reconcile a create-event timeout before trying again
- CAL-106 · Move a booking only if its current revision still matches
- CAL-107 · Make repeated cancellation safe and tenant scoped
- CAL-108 · Refresh expired connector credentials once per account
- CAL-109 · Ignore duplicate calendar notifications and detect missed updates
Acceptance criteria
- The list separates pending creation, uncertain update, pending cancellation, and resolved operations.
- Each row includes safe booking reference, last attempt time, failure category, and permitted recovery action.
- Reading the list never sends invitations, creates events, or retries an operation implicitly.
Implementation constraints
- Omit attendee contact details from generic diagnostics.
- Actions invoke the existing authorized lifecycle methods.
Verification to include
- Populate one operation in each state and verify labels and action availability.
- Open the list as an unauthorized tenant and confirm denial with zero provider activity.
Deliverables
- Recovery list projection and reconnect operator guide
Rollout and recovery
Release read-only recovery visibility first; activate explicit retry actions only through the already verified state transitions.
Value of the work
For the engineer: Practice time modeling, conflict-safe booking, external state reconciliation, and credential lifecycle boundaries.
For the team: Review whether integration work protects appointment correctness and offers clear recovery when a provider is uncertain.
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.