---
path: /studio/isis/chargeback-prevention
surface: studio
domain: isis
auth:
  signed-in + studio entitlement (segment not in `AAA_ONLY_STUDIO_ROUTES` —
  renders as-is)
source: apps/oshun/web/src/app/studio/isis/chargeback-prevention/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 Chargeback Prevention

## Purpose

Admin lane console for the weighted-feature chargeback model. An operator enters a
transaction's amount, payment method, device fingerprint, and country; the model
returns a chargeback probability, risk tier, confidence, and the contributing
weighted factors. Reads the model weights and scores via
`/v1/admin/isis/chargeback-prevention`; admin-scoped and fail-closed.

## Entry points

- Embedded as the "Chargeback Prevention Lane" inside `/studio/isis/cli`
- Sibling quick-action from `/studio/isis/account-protection` and
  `/studio/isis/suspicious-activity-detection`
- Studio index (`/studio`)
- Direct URL / bookmark

## 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-chargeback-prevention-workspace`):
  - `<h1>` (`WorkspaceHeading`) "Isis Chargeback Prevention Workspace"
  - Summary paragraph (`data-isis-chargeback-prevention-summary`)
  - Model weights (`data-isis-cp-weights`)
  - Predict form (`data-isis-cp-predict-form`)
  - Score result (`data-isis-cp-result`) with `data-isis-cp-probability`,
    `data-isis-cp-risk`, `data-isis-cp-confidence`, and contributing factors
    (`data-isis-cp-factors`, `data-isis-cp-factor=<id>`)
- **Route Map panel** (`data-isis-chargeback-prevention-route-map`):
  `<h2>Route Map</h2>` over the route map (5 entries)
- **Sibling quick-actions panel**:
  `/studio/isis/suspicious-activity-detection`, `/studio`

## States

- [ ] **Loading** — `data-isis-cp-loading`
- [ ] **Unauthorized** — 401/403 admin-scope fail-closed;
      `data-isis-cp-unauthorized`
- [ ] **Error** — non-OK / malformed; `data-isis-cp-error`
- [ ] **Ready (form)** — weights + predict form render
- [ ] **Result** — `data-isis-cp-result` after scoring; prediction failure →
      `data-isis-cp-predict-error`

## Interactions

### Predict form (`data-isis-cp-predict-form`)

- [ ] **Amount** (`data-isis-cp-field-amount`, input,
      `aria-label="transaction amount"`)
- [ ] **Payment method** (`data-isis-cp-field-method`, input,
      `aria-label="payment method"`)
- [ ] **Device fingerprint** (`data-isis-cp-field-device`, input,
      `aria-label="device fingerprint"`)
- [ ] **Country** (`data-isis-cp-field-country`, input, `aria-label="country"`)
- [ ] **Score transaction** (`data-isis-cp-predict-submit`, submit) — `POST
      /v1/admin/isis/chargeback-prevention/predict`

### Route Map

- [ ] **Route-map articles** ×5

### Sibling quick-actions

- [ ] **Open Isis Suspicious Activity Detection workspace** →
      `/studio/isis/suspicious-activity-detection`
- [ ] **Back to Studio workspace index** → `/studio`

## Data & contracts

- **Reads**: `GET /v1/admin/isis/chargeback-prevention` (model weights)
- **Writes**: `POST /v1/admin/isis/chargeback-prevention/predict` (score a
  transaction)
- **Realtime**: none
- **Caching**: client fetch on mount, `cache: 'no-store'`, `buildBffAuthHeaders()`
- **Auth/role check**: admin-scoped, fail-closed (401/403); route signed-in +
  studio entitlement
- **Component sources**:
  - `apps/oshun/web/src/components/studio/StudioIsisChargebackPreventionWorkspace.tsx`
  - `apps/oshun/web/src/components/studio/StudioIsisChargebackPreventionRouteMap.ts`

## Cross-references

- Studio overview: [`../../studio-overview.md`](../../studio-overview.md)
- Also embedded in: [`studio-isis-cli.md`](./studio-isis-cli.md)
- Sibling routes:
  - [`studio-isis-account-protection.md`](./studio-isis-account-protection.md)
  - [`studio-isis-suspicious-activity-detection.md`](./studio-isis-suspicious-activity-detection.md)

## Open questions / known gaps

- [ ] No breadcrumb on this route — navigation via sibling quick-actions
- [ ] Also embedded inside the CLI aggregator; confirm the canonical entry
      surface for operators
- [ ] Route-map sub-paths are declared but not yet implemented as separate pages