Cancel pending mobile navigation when invitation ownership changes
An invitation opened before account switching completes under the wrong identity. Bind continuation to the initiating session generation.
- Focused work estimate
- 2h 15m + prerequisites
- Priority in the scenario
- High
- Engineering practice
- Race conditions · Isolation
Estimated field mix
- Mobile50%
- Security50%
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 team-planning app Finch opens invitations and shared work items. All users and sessions are synthetic; implement the app in an emulator without external identity credentials.
Setup prerequisites
- Create a local session adapter with expiry and revocation.
- Define synthetic invitation and work-item links.
Preceding work
Complete these dependencies, or supply their agreed outputs before taking this ticket.
- CLINK-101 · Reject malformed mobile invitation routes before navigation
- CLINK-102 · Explain expired mobile invitations without automatic retries
- CLINK-103 · Retain a mobile link destination through local sign-in
- CLINK-104 · Recheck mobile work-item access after account switching
- CLINK-105 · Serialize mobile session refresh for simultaneous requests
Acceptance criteria
- Stale continuation is discarded
- Current session can reopen link
- No prior invitation details remain visible
Implementation constraints
- Cancellation must survive late adapter responses.
Verification to include
- Resolve current invitation
- Resolve old invitation after switch
Deliverables
- Session-scoped continuation guard
Rollout and recovery
Clear all pending routes on account change.
Value of the work
For the engineer: Practice navigation state, capability checks and session boundaries.
For the team: Inspect whether links remain useful without bypassing authorization.
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.