fin-hub/workplans/FIN-WP-0003-fabric-authority-boundary.md

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---
id: FIN-WP-0003
type: workplan
title: "Fabric authority boundary for State Hub retirement"
domain: financials
repo: fin-hub
status: proposed
owner: codex
topic_slug: financials
created: "2026-08-09"
updated: "2026-08-09"
parent_project: prj-state-hub-retirement
parent_workplan: SHR-WP-0001
related:
- FIN-WP-0001
- SHR-INV-0001
- STATE-WP-0079
state_hub_workstream_id: "1f6698f4-65b9-4e3b-bdf5-b079341e4581"
---
# Fabric authority boundary for State Hub retirement
## Goal
Keep **fabric graph data authority** in fin-hub (or its specialized engine),
define any hub-core projection, and support State Hub fabric route disposition
(`move` → fin-hub).
## Confirm authority and APIs
```task
id: FIN-WP-0003-T01
status: todo
priority: high
state_hub_task_id: "4471c006-5740-4241-8c81-251134c82f0d"
```
Document which fabric entities/APIs are authoritative here vs State Hub read
models; publish consumer contract for migration.
## Migration path from State Hub fabric routes
```task
id: FIN-WP-0003-T02
status: todo
priority: high
state_hub_task_id: "76c7ed79-8614-4e42-9e4c-f50bf789b584"
```
With STATE-WP-0079, plan cutover for fabric ingest/read routes and dashboard
consumers; row-count and provenance checks.
## Optional hub projection
```task
id: FIN-WP-0003-T03
status: todo
priority: low
state_hub_task_id: "ae36e4e7-c39d-4027-bc49-e7abb52fb9e1"
```
If orientation needs a hub-core projection, define port usage without copying
authority tables into hub-core.
## Acceptance
- [ ] Authority boundary documented
- [ ] Migration path agreed with State Hub strangler
- [ ] Projection decision recorded (implement or explicitly defer)