---
path: /studio/isis/client-sdk
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/client-sdk/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 Client SDK

## Purpose

Admin lane console for the Isis client SDK's retry/backoff policy: the embedded
backoff lane is wired to the real retry/backoff schedule planner via
`/v1/admin/isis/client-sdk`, computing the exponential-backoff retry schedule
(base · multiplier^attempt, capped at `maxDelayMs`, full-jitter bounds) an SDK
client uses on request failure. It is admin-scoped and fails closed.

## Entry points

- Sibling quick-action from `/studio/isis/cli-surface`
- 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-client-sdk-workspace`):
  - `<h1>` (`WorkspaceHeading`) "Isis Client SDK Workspace"
  - Summary paragraph (`data-isis-client-sdk-summary`)
  - Embedded backoff lane with its own `<h2>` (`data-rbl-heading`) "Live Retry
    Backoff Planner" — backoff-policy form + plan result
- **Route Map panel** (`data-isis-client-sdk-route-map`): `<h2>Route Map</h2>`
  over `STUDIO_ISIS_CLIENT_SDK_ROUTE_MAP` (5 entries)
- **Sibling quick-actions panel**: `/studio/isis/cli-surface`, `/studio`

## States

- [ ] **Loading** — `outcome === null`; `data-rbl-loading` "Loading backoff
      planner…"
- [ ] **Unauthorized** — 401/403 admin-scope fail-closed; `data-rbl-unauthorized`
- [ ] **Error** — non-OK or malformed catalog; `data-rbl-error`
- [ ] **Ready (form)** — catalog present; `data-rbl-form` renders the
      backoff-policy JSON textarea
- [ ] **Result** — after a plan POST, `data-rbl-result`; invalid JSON or a planner
      rejection surfaces in `data-rbl-plan-error` ("Payload must be valid JSON." /
      planner detail)

## Interactions

### Retry Backoff Planner (`data-rbl-form`)

- [ ] **Backoff policy payload** (`data-rbl-payload`, `<textarea>`,
      `aria-label="backoff policy json"`)
- [ ] **Plan backoff** (`data-rbl-submit`, submit) —
      `POST /v1/admin/isis/client-sdk/plan-backoff`

### Route Map

- [ ] **Route-map articles** ×5

### Sibling quick-actions

- [ ] **Open Isis CLI Surface workspace** → `/studio/isis/cli-surface`
- [ ] **Back to Studio workspace index** → `/studio`

## Data & contracts

- **Reads**: `GET /v1/admin/isis/client-sdk` (planner catalog)
- **Writes**: `POST /v1/admin/isis/client-sdk/plan-backoff` (returns the computed
  retry-backoff schedule)
- **Realtime**: none
- **Caching**: client fetch on mount, `cache: 'no-store'`, `buildBffAuthHeaders()`
- **Auth/role check**: admin-scoped (Isis scope), fail-closed (401/403); route
  gated on signed-in + studio entitlement
- **Component sources**:
  - `apps/oshun/web/src/components/studio/StudioIsisClientSdkWorkspace.tsx`
  - `apps/oshun/web/src/components/studio/StudioIsisClientSdkRouteMap.ts`

## Cross-references

- Studio overview: [`../../studio-overview.md`](../../studio-overview.md)
- Sibling routes:
  - [`studio-isis-cli-surface.md`](./studio-isis-cli-surface.md)
  - [`studio-isis-cli.md`](./studio-isis-cli.md)
  - [`studio-isis-client.md`](./studio-isis-client.md)

## Open questions / known gaps

- [ ] No breadcrumb on this route — navigation is via sibling quick-actions
- [ ] The backoff policy is a free-form JSON textarea rather than typed fields;
      confirm whether structured inputs are planned