---
path: /studio/isis/model-merging
surface: studio
domain: isis
auth:
  signed-in + studio entitlement (AAA-gated — `model-merging` is in
  `AAA_ONLY_STUDIO_ROUTES`)
source: apps/oshun/web/src/app/studio/isis/model-merging/page.tsx
status: walked
last_walked:
  '2026-05-29 automated runtime walk (Playwright headless) — render, /v1 data
  (2xx), console/page-errors, expected content, screenshot verified; live
  screen-reader, touch, offline, and telemetry-delivery checks pending a manual
  AT pass. Evidence: WALKTHROUGH/results/runtime-sweep-2026-05-29.md; body
  re-derived 2026-06-03 from current source (lane-console architecture)'
---

# Isis Model Merging

## Purpose

Admin lane console for model-merge planning. It reads the candidate component set
and available fixture sets, lets the operator compose a weighted merge, and builds
a provenance bundle for the plan, persisting saved plans. Reads the context via
`/v1/admin/isis/model-merging` and saves plans to
`/v1/admin/isis/model-merging/plans`; admin-scoped and fail-closed.

## Entry points

- Sibling quick-action from `/studio/isis/lora-training`
- Studio index (`/studio`)
- Direct URL / bookmark (AAA entitlement required)

## Layout regions

`page.tsx` mounts `<ShellLayout active="studio">` (no breadcrumb panel) and three
panels: the workspace, the Route Map, and sibling quick-actions.

- **Header**: shell header
- **Workspace panel** (`data-isis-model-merging-workspace`):
  - `<h1>` (`WorkspaceHeading`) "Isis Model Merging Workspace"
  - Summary paragraph (`data-isis-model-merging-summary`)
  - Merge composer (`data-merge-composer`): candidate list
    (`data-merge-candidate=<id>` with `data-merge-candidate-select` /
    `data-merge-candidate-weight`) and fixture set (`data-merge-fixture`)
  - Saved plans (`data-merge-saved-plans`, `data-merge-saved-plan=<id>`); empty
    state `data-merge-saved-plans-empty`
- **Route Map panel** (`data-isis-model-merging-route-map`): `<h2>Route Map</h2>`
  over the route map (5 entries)
- **Sibling quick-actions panel**: `/studio/isis/lora-training`, `/studio`

## States

- [ ] **Loading** — `data-merge-loading`
- [ ] **Unauthorized** — 401/403 admin-scope fail-closed; `data-merge-unauthorized`
- [ ] **Error** — non-OK / malformed; `data-merge-error`
- [ ] **Ready (composer)** — candidates + fixture sets + composer render
- [ ] **Empty (saved plans)** — `data-merge-saved-plans-empty`
- [ ] **Result** — `data-merge-build-result` (`data-merge-build-status`) after
      building

## Interactions

### Merge composer (`data-merge-composer`)

- [ ] **Merge id** (`data-merge-mergeid`, input)
- [ ] **Fixture set** (`data-merge-fixture`, `<select>`)
- [ ] **Filter candidates** (`data-merge-search`,
      `aria-label="Filter candidate components"`)
- [ ] **Candidate select + weight** (`data-merge-candidate-select`,
      `data-merge-candidate-weight`)
- [ ] **Build provenance bundle** (`data-merge-build-submit`) — disabled until a
      valid composition; `POST /v1/admin/isis/model-merging/plans`

### Route Map

- [ ] **Route-map articles** ×5

### Sibling quick-actions

- [ ] **Open Isis LoRA Training workspace** → `/studio/isis/lora-training`
- [ ] **Back to Studio workspace index** → `/studio`

## Data & contracts

- **Reads**: `GET /v1/admin/isis/model-merging` (candidate components, fixture
  sets, saved plans)
- **Writes**: `POST /v1/admin/isis/model-merging/plans` (build + save a merge
  plan / provenance bundle)
- **Realtime**: none
- **Caching**: client fetch on mount, `cache: 'no-store'`, `buildBffAuthHeaders()`
- **Auth/role check**: admin-scoped, fail-closed (401/403); route AAA-gated
  (`model-merging` in `AAA_ONLY_STUDIO_ROUTES`)
- **Component sources**:
  - `apps/oshun/web/src/components/studio/StudioIsisModelMergingWorkspace.tsx`
  - `apps/oshun/web/src/components/studio/StudioIsisModelMergingRouteMap.ts`

## Cross-references

- Studio overview: [`../../studio-overview.md`](../../studio-overview.md)
- AAA gating: `libs/isis/entitlements/src/studio-boundary.ts`
- Sibling routes:
  - [`studio-isis-lora-training.md`](./studio-isis-lora-training.md)
  - [`studio-isis-model-comparison.md`](./studio-isis-model-comparison.md)

## Open questions / known gaps

- [ ] No breadcrumb on this route — navigation via sibling quick-actions
- [ ] Route-map sub-paths are declared but not yet implemented as separate pages