Studio Aja · Dance Pipeline

Purpose#

Admin lane console for dance-motion flow analysis. Its operations lane wires @aja/motion-quality analyzeTemporalCoherence via /v1/admin/aja/dance-pipeline: run a dance motion through the flow/rhythm analyzer — it detects jumps (teleporting joints), freezes (sustained near-zero velocity), and stutters (sudden velocity changes), and scores frame-to-frame continuity, motion-phase consistency, and rhythm stability, returning the overall + three sub-scores and the discontinuity list. A preserved Metis embodied-instruction panel bridges the dance domain into structured learning.

Entry points#

• Direct URL / bookmark — /studio/aja/dance-pipeline; metadata sets alternates.canonical.
• Linked from /studio Domain-bridge studios section (Aja sub-area).
• Quick action — "Open Aja Fitness Pipeline workspace" (/studio/aja/fitness-pipeline).

Layout regions#

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

• Workspace StudioAjaDancePipelineWorkspace — <h1> "Aja Dance Pipeline Workspace" + summary (data-aja-dance-pipeline-summary), the Metis panel (data-aja-dance-pipeline-metis-panel, domain="dance"), then the Temporal Coherence Operations Lane (data-aja-dance-pipeline-operations-lane).
• Route Map panel (data-aja-dance-pipeline-route-map, <h2>) — 5 entries from STUDIO_AJA_DANCE_PIPELINE_ROUTE_MAP exposed with data-aja-dance-pipeline-route-map-entry / data-route-path.
• Quick-action lane (data-aja-dance-pipeline-quick-actions) — two Link.quickAction anchors: fitness-pipeline and /studio.

States#

The lane fetches GET /v1/admin/aja/dance-pipeline on mount.

• Loading — data-aja-dp-loading "Loading coherence analyzer...".
• Unauthorized (gated) — data-aja-dp-unauthorized on 401/403; admin scope message ("Aja workspace scope required to analyze temporal coherence.").
• Error — data-aja-dp-error on non-OK / malformed / network failure.
• Ready (form) — data-aja-dp-form, catalog attributes (data-aja-dp-analyzer, jump/freeze thresholds, sub-score count and data-aja-dp-sub-score spans), and idle submit state.
• Result — data-aja-dp-result with stable score / continuity / phase-consistency / rhythm-stability / discontinuity-count attributes, data-aja-dp-headline, data-aja-dp-subscores, typed data-aja-dp-discontinuity-row attributes, and data-aja-dp-clean.
• Validation error — data-aja-dp-analyze-error (e.g. "Provide at least one joint id." / "Frames must be valid JSON.").
• Mobile/touch containment — form controls and route actions remain at least 44 px tall with no horizontal overflow.
• Empty — N/A; catalog + Metis panel are constant

Interactions#

Temporal Coherence form (data-aja-dp-form)#

• Joint ids — input data-aja-dp-joints (default RightHand); comma-separated, at least one.
• Frames — textarea data-aja-dp-frames; JSON array of { positions: { jointId: { x, y, z } } }, at least 4 frames.
• Analyze coherence — submit data-aja-dp-submit; fires POST /v1/admin/aja/dance-pipeline/analyze with { joints, frames }; locked with data-aja-dp-submit-state="analyzing" while the real request is pending.

Metis embodied-instruction panel#

• Relationship cards (data-aja-dance-pipeline-metis-summary + data-aja-dance-pipeline-metis-card) — links bridge the dance domain into Metis study moments and expose stable hrefs.

Route Map panel#

• 5 entries — non-interactive listing with exact path ordering.

Quick-action lane#

• "Open Aja Fitness Pipeline workspace" → /studio/aja/fitness-pipeline
• "Back to Studio workspace index" → /studio

Data & contracts#

• Reads: GET /v1/admin/aja/dance-pipeline (catalog: analyzer, summary, defaultThresholds, subScores) on mount, cache: 'no-store', buildBffAuthHeaders(); client fails closed unless the expected temporal-coherence analyzer and all three sub-scores are present.
• Writes: POST /v1/admin/aja/dance-pipeline/analyze → { score, continuity, phaseConsistency, rhythmStability, discontinuities }; client fails closed unless the result and each discontinuity row have the expected typed fields.
• Realtime: none.
• Caching: client fetch on mount (no-store); SSR shell.
• Auth/role check: BFF endpoints admin-scoped, fail-closed (401/403 → unauthorized render); route gated signed-in + studio via the proxy.

Cross-references#

• Parent: ../../studio-overview.md
• Sibling routes: ./studio-aja-fitness-pipeline.md
• Component sources:
  • apps/oshun/web/src/components/studio/StudioAjaDancePipelineWorkspace.tsx
  • apps/oshun/web/src/components/studio/StudioAjaDancePipelineRouteMap.ts
  • apps/oshun/web/src/components/studio/StudioAjaMetisEmbodiedInstructionPanel.tsx

Verification evidence#

• apps/oshun/web/e2e/studio-aja-dance-pipeline.spec.ts runs against the real Next Studio shell and local BFF, forwarding browser bearer auth rather than mocking the temporal-coherence contract.
• The spec covers anonymous redirect, Aja-admin catalog load, exact default teleporting/stuttering RightHand motion, edited clean-flow motion, local validation with no POST, BFF validation details, malformed result, transport failure, loading / 503 / malformed / non-admin states, pending form locking, Metis bridge links, mobile no-overflow + 44px controls, scoped axe, and direct BFF 401/403/400/200 gates.

Open questions / known gaps#

• Route Map lists scenes/exports/revisions/governance child routes that are not yet implemented as pages.