noCV
CROUTE-107 · Protect offline work

Remove downloaded visit attachments without deleting notes

Practice briefTaskIntermediate

Attachment cache consumes emulator storage. Add per-visit cleanup that preserves authored drafts.

Focused work estimate
2h + prerequisites
Priority in the scenario
Medium
Engineering practice
Storage · Resource management

Estimated field mix

  • Storage systems60%
  • Mobile40%

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

Fictional maintenance coordinator Elm dispatches non-safety-critical inspection visits. Implement a mobile application in an emulator with local API stubs; physical devices and credentials are unnecessary.

Setup prerequisites

  • Create synthetic visits and a local sync adapter.
  • Provide controllable connectivity and process-restart simulation.

Preceding work

Complete these dependencies, or supply their agreed outputs before taking this ticket.

Acceptance criteria

  • Cleanup targets downloaded blobs
  • Notes and queue remain intact
  • Failed deletion reports reclaim uncertainty

Implementation constraints

  • Separate cache paths from draft storage.

Verification to include

  • Clean one visit
  • Fail blob removal and inspect notes

Deliverables

  • Cache cleanup and isolation cases

Rollout and recovery

Disable cleanup if protected paths overlap.

Value of the work

For the engineer: Practice durable mobile state and explicit sync conflicts.

For the team: Inspect how an engineer protects field work during disconnection.

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.