---
path: /studio/hathor/lore-fact-checking
surface: studio
domain: hathor
auth: signed-in + studio entitlement
source: apps/oshun/web/src/app/studio/hathor/lore-fact-checking/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)'
---

# Studio Hathor · Lore Fact-Checking

## Purpose

Admin lane console that fact-checks a chronicle source against the lore corpus —
running the real fact-checking algorithm to emit a verdict, per-issue
diagnostics, and aggregate stats. The operator pastes a chronicle source, opts
into speaker normalization, and the lane returns clean/flagged diagnostics.

## Entry points

- **Quick-action link from `/studio/hathor/research-grounding`** (verify against
  that page's source)
- **Direct URL / bookmark** — yes; `alternates.canonical` set to
  `/studio/hathor/lore-fact-checking`
- **Studio overview** — see
  [`../../studio-overview.md`](../../studio-overview.md)

## Layout regions

`page.tsx` renders inside `<ShellLayout active="studio">`:

- **Workspace** `<StudioHathorLoreFactCheckingWorkspace />`
  (`data-hathor-lore-fact-checking-workspace`):
  - `WorkspaceHeading` `<h1>` — "Hathor Lore Fact-Checking Workspace"
  - Summary `<p data-hathor-lore-fact-checking-summary>`
  - The fact-checking form lane (loading / unauthorized / error / form / result)
- **Route Map panel** `data-hathor-lore-fact-checking-route-map` — `<h2>` "Route
  Map" listing the 5 `STUDIO_HATHOR_LORE_FACT_CHECKING_ROUTE_MAP` entries (claims
  / evidence / conflicts / governance child paths)
- **Quick-action lane** — two `Link.quickAction` anchors: Research Grounding,
  Back to Studio workspace index

## States

- [ ] **Loading** — `data-hathor-lfc-loading` while the GET catalog request is in
      flight
- [ ] **Unauthorized (admin-scope 401/403)** — `data-hathor-lfc-unauthorized`
- [ ] **Error** — `data-hathor-lfc-error`
- [ ] **Ready (form)** — chronicle-source textarea + normalize toggle + submit
- [ ] **Result** — `data-hathor-lfc-result` with `data-hathor-lfc-verdict`,
      `data-hathor-lfc-stats`, and `data-hathor-lfc-diagnostics` (per-issue
      `data-hathor-lfc-diagnostic`) or `data-hathor-lfc-clean`
- [ ] **Validation error** — `data-hathor-lfc-check-error`

## Interactions

### Fact-checking lane

- [ ] **Chronicle source** — chronicle-source textarea (`<span>Chronicle source</span>`)
- [ ] **Normalize speakers** — `data-hathor-lfc-normalize` toggle
      (`<span>Normalize speakers</span>`)
- [ ] **Submit** — `<button data-hathor-lfc-check-submit>` "Fact-check chronicle"
      → POST `CHECK_ENDPOINT`

### Route Map panel

- [ ] **Route entries** — verify match with
      `STUDIO_HATHOR_LORE_FACT_CHECKING_ROUTE_MAP` (5 entries)

### Quick-action lane

- [ ] **"Open Hathor Research Grounding workspace"** → `/studio/hathor/research-grounding`
- [ ] **"Back to Studio workspace index"** → `/studio`

## Data & contracts

- **Reads**: `GET /v1/admin/hathor/lore-fact-checking` (`LFC_ENDPOINT`) — the
  fact-check catalog
- **Writes**: `POST /v1/admin/hathor/lore-fact-checking/check` (`CHECK_ENDPOINT`)
  with the chronicle source + options
- **Realtime**: none
- **Caching**: client `fetch` on mount, `cache: 'no-store'`, `buildBffAuthHeaders()`
- **Auth/role check**: admin-scoped, fail-closed on 401/403; route additionally
  gated signed-in + studio by the BFF proxy

## Cross-references

- Parent: [`../../studio-overview.md`](../../studio-overview.md)
- Shell:
  [`../../../shell/04-auth-session.md`](../../../shell/04-auth-session.md)
- Sibling routes:
  [`./studio-hathor-research-grounding.md`](./studio-hathor-research-grounding.md),
  [`./studio-hathor-lore-validation-taxonomy.md`](./studio-hathor-lore-validation-taxonomy.md)
- Component sources:
  - `apps/oshun/web/src/components/studio/StudioHathorLoreFactCheckingWorkspace.tsx`
  - `apps/oshun/web/src/components/studio/StudioHathorLoreFactCheckingRouteMap.ts`

## Open questions / known gaps

- [ ] Hathor is `unconfirmed-v1` per `WALKTHROUGH/matrix/routes.csv`. Confirm
      whether the dedicated `/studio/hathor/` lane consoles ship at V1 or are
      internal-only.
- [ ] Confirm what backing corpus the fact-checker compares against (the lane
      runs the algorithm but the corpus source is not surfaced in the UI).