railiance-fabric/workplans/archived/260702-RAIL-FAB-WP-0004-registry-inventory-and-drift.md

---
id: RAIL-FAB-WP-0004
type: workplan
title: "Registry Inventory And Drift Views"
domain: financials
repo: railiance-fabric
status: finished
owner: codex
topic_slug: railiance
planning_priority: high
planning_order: 4
state_hub_workstream_id: "1c23693e-2288-48bd-81e8-9eedd8ce33e2"
created: "2026-05-17"
updated: "2026-05-17"
---

> **Terminology note:** Historical text in this archived workplan may use the legacy term "workstream". The fleet term is **workplan** (`canon/standards/workplan-terminology-fleet_v0.1.md`).

# RAIL-FAB-WP-0004 - Registry Inventory And Drift Views

## Goal

Make the registry useful as an inspection surface, not only an ingestion
surface.

Agents and humans should be able to ask what a registered repo currently
contains, search across graph/library/artifact data, and compare graph snapshots
to see what changed.

## Tasks

### T01 - Repository Inventory View

```task
id: RAIL-FAB-WP-0004-T01
status: done
priority: high
state_hub_task_id: "13668f00-bdc1-4817-88b4-634388194d78"
```

Add a repo inventory view that returns repository metadata, latest snapshot
summary, graph nodes/edges from that snapshot, artifacts, libraries, and counts.

### T02 - Snapshot Listing And Drift

```task
id: RAIL-FAB-WP-0004-T02
status: done
priority: high
state_hub_task_id: "5f295559-193c-4156-842e-f940633a0d85"
```

Expose snapshot listing and graph drift between two snapshots. By default, drift
compares the latest snapshot with the previous snapshot for the same repo.

### T03 - Registry Search

```task
id: RAIL-FAB-WP-0004-T03
status: done
priority: medium
state_hub_task_id: "5d9c630a-29ff-40fb-a630-4870911cd757"
```

Add a simple search endpoint across repositories, graph nodes, artifacts, and
libraries.