Expose sync health that depot support can act on
Depot support cannot distinguish a device waiting for Wi-Fi from one stuck on an expired upload. Add an account-local sync health page and a safe support bundle.
- Focused work estimate
- 1h 30m + prerequisites
- Priority in the scenario
- Medium
- Engineering practice
- Observability · Support tooling · Privacy
Estimated field mix
- Mobile50%
- Site reliability30%
- Privacy engineering20%
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
The fictional Vale facilities team services equipment in basements with poor reception. Technicians receive assigned work orders, record checks, and attach synthetic equipment photos. The practice app uses an on-device database and a stub sync service; background location tracking is excluded.
Setup prerequisites
- Synthetic work orders and a revisioned sync contract
- An emulator with controllable connectivity and app lifecycle
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- FIELD-102 · Commit a completed checklist item before showing it saved
- FIELD-101 · Tell technicians which work orders are available offline
- FIELD-103 · Make inspection inputs usable with large text
- FIELD-104 · Keep photo evidence attached after the app is suspended
- FIELD-105 · Explain why a work order is not ready to finish
- FIELD-106 · Drain the sync queue without duplicating completed visits
- FIELD-107 · Keep reassigned work from being silently completed offline
- FIELD-108 · Resume a large photo upload without restarting the whole queue
- FIELD-109 · Clear a shared device without dropping pending work invisibly
Acceptance criteria
- The page separates queued, retrying, blocked, and acknowledged counts with last successful sync time.
- The bundle includes app/schema versions and operation categories but excludes notes, photos, addresses, and tokens.
- A retry action obeys the same queue rules and cannot bypass blocked authority conflicts.
Implementation constraints
- Keep diagnostic storage bounded and document one recovery action per blocker category.
Verification to include
- Create a retryable upload and a reassignment blocker; verify distinct states and actions.
- Seed private fixture content and inspect the exported bundle; none of it is present and blocked work is not force-sent.
Deliverables
- Sync health screen and depot troubleshooting note
Rollout and recovery
Enable for pilot support staff; remove bundle export if redaction fails while retaining local status labels.
Value of the work
For the engineer: Practice durable local state, mobile lifecycle recovery, and conflict resolution in realistic offline workflows.
For the team: Review whether an engineer can protect field work through crashes, interrupted uploads, and reassignment.
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.