---
path: /studio/isis/text-to-audio
surface: studio
domain: isis
auth:
  signed-in + studio entitlement (AAA-gated — `text-to-audio` is in
  `AAA_ONLY_STUDIO_ROUTES`)
source: apps/oshun/web/src/app/studio/isis/text-to-audio/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);
  2026-07-03 addendum: `studio-isis-text-to-audio.spec.ts` proved the direct
  route remains hard-blocked by the Studio Isis boundary, then drove the
  localhost-only lane-bypass route against the real local BFF, including the
  live text-to-audio manifest, compatible/incompatible output-package checks,
  loading/error/malformed/missing-entry/check-network-failure/unauthorized/
  anonymous states, route-map articles, sibling quick-actions, and 44px
  automated hit-target checks for the select, submit, and quick-actions.'
---

# Studio · Isis · Text-to-Audio

## Purpose

Admin lane console over the shared generation manifest, scoped to the
text-to-audio contract. It reads the generation-type manifest (prompt and
output-package requirements) and lets the operator check whether a candidate
output type is compatible with text-to-audio generation. Reads via
`/v1/admin/isis/generation-manifest` and checks via its `/check-output` verb;
admin-scoped and fail-closed.

## Entry points

- Sibling quick-action from `/studio/isis/text-to-speech`
- 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-text-to-audio-workspace`):
  - `<h1>` (`WorkspaceHeading`) "Isis Text-to-Audio Workspace"
  - Summary paragraph (`data-isis-text-to-audio-summary`)
  - Manifest (`data-tta-manifest`) with controls (`data-tta-image-controls`,
    `data-tta-requires-prompt`, `data-tta-output-rule`)
  - Compatibility check form (`data-tta-check-form`) + result
    (`data-tta-compatible`)
- **Route Map panel** (`data-isis-text-to-audio-route-map`):
  `<h2>Route Map</h2>` over the route map (5 entries)
- **Sibling quick-actions panel**: `/studio/isis/text-to-speech`, `/studio`

## States

- [x] **Loading** — `data-tta-loading`
- [x] **Unauthorized** — 401/403 admin-scope fail-closed;
      `data-tta-unauthorized`
- [x] **Error** — non-OK / malformed; `data-tta-error`; missing `text-to-audio`
      manifest entry is treated as fail-closed error, not a fabricated form
- [x] **Ready (manifest + form)** — manifest + check form render
- [x] **Result** — `data-tta-compatible`; check failure → `data-tta-check-error`

## Interactions

### Compatibility check form (`data-tta-check-form`)

- [x] **Output type** (`data-tta-field-output`, `<select>`)
- [x] **Check compatibility** (`data-tta-check-submit`, submit; disabled while
      checking) — `POST /v1/admin/isis/generation-manifest/check-output`

### Route Map

- [x] **Route-map articles** ×5

### Sibling quick-actions

- [x] **Open Isis Text-to-Speech workspace** → `/studio/isis/text-to-speech`
- [x] **Back to Studio workspace index** → `/studio`

## Data & contracts

- **Reads**: `GET /v1/admin/isis/generation-manifest` (generation-type manifest)
- **Writes**: `POST /v1/admin/isis/generation-manifest/check-output` (validate
  an output type against the contract)
- **Realtime**: none
- **Caching**: client fetch on mount, `cache: 'no-store'`,
  `buildBffAuthHeaders()`
- **Auth/role check**: admin-scoped, fail-closed (401/403); route AAA-gated
  (`text-to-audio` in `AAA_ONLY_STUDIO_ROUTES`)
- **Component sources**:
  - `apps/oshun/web/src/components/studio/StudioIsisTextToAudioWorkspace.tsx`
  - `apps/oshun/web/src/components/studio/StudioIsisTextToAudioRouteMap.ts`

## E2E coverage

- [`apps/oshun/web/e2e/studio-isis-text-to-audio.spec.ts`](../../../../apps/oshun/web/e2e/studio-isis-text-to-audio.spec.ts)
  — proves direct `/studio/isis/text-to-audio` is still hard-blocked by the
  Studio Isis boundary, then drives the localhost-only
  `?__oshunStudioIsisLaneE2E=1` lane bypass in the real Next shell with browser
  requests forwarded to the real local BFF. Covered paths:
  - Admin lane-bypass navigation loads the live text-to-audio manifest,
    prompt-required / image-controls-disabled contract flags, the audio
    output-package rule, the `image/video/audio/3d/text` select options,
    route-map articles, sibling quick-actions, bearer-authenticated manifest
    request, and 44px hit-target checks for the select, submit, and quick-action
    controls.
  - The compatibility form posts live BFF requests for compatible
    `text-to-audio → audio` and incompatible `text-to-audio → image`, asserting
    both the user-visible result and exact browser POST bodies.
  - Loading, missing manifest entry, 503 service failure, malformed manifest,
    check network failure, non-admin unauthorized, and anonymous
    redirect-before-render states all fail closed without fabricating a checker
    or compatibility result.

## Cross-references

- Studio overview: [`../../studio-overview.md`](../../studio-overview.md)
- AAA gating: `libs/isis/entitlements/src/studio-boundary.ts`
- Shares the manifest endpoint with:
  [`studio-isis-image-generation.md`](./studio-isis-image-generation.md)
- Sibling routes:
  - [`studio-isis-text-to-speech.md`](./studio-isis-text-to-speech.md)

## Open questions / known gaps

- [ ] No breadcrumb on this route — navigation via sibling quick-actions
- [x] Reads the shared `/v1/admin/isis/generation-manifest` (same endpoint as
      Image Generation) filtered to the text-to-audio contract
- [ ] Route-map sub-paths are declared but not yet implemented as separate pages