git:20260717.d7dfe61 to git:20260906.2f687b4

7 added, 6 removed. Audit A to A.

---

name: architecture

description: Use for Claude Code architectural review of the Nebius Physical AI platform, workbench layer, orchestrator choices, and partner model.

---

# Architecture Context

Detailed rationale and the preserved May 2026 architecture snapshot live in

`docs/architecture/contributor-context.md`.

The platform progression is:

1. Tools: Workbench.

2. Composition: Platform.

3. Intelligence: agentic layer.

The current phase is Workbench, the Tools layer: marketplace model, pay per use, `npa` CLI/SDK/agents.

- There are 8 tools: LeRobot, FiftyOne, Genesis, Isaac Lab, Cosmos, LanceDB, GR00T, and SONIC.

- Tool validation state: 8/8 named Workbench tools have at least one

- artifact-bearing e2e validation on Nebius. Cosmos closed the last gap in W13

- through `cosmos train --runtime serverless --smoke`; Cosmos visual-generation

- rendering paths remain constrained by the EGL/DRI container gap.

+ The May 2026 snapshot covers LeRobot, FiftyOne, Genesis, Isaac Lab, Cosmos,

+ LanceDB, GR00T, and SONIC. It is historical context, not the current tool count

+ or proof that a newly built image works. Resolve current capabilities from the

+ workflow catalog and `skills/index.yaml`; resolve image validation and publication

+ from `npa/src/npa/deploy/images.py` and

+ `docs/workbench/container-image-catalog.md`. New source and replacement digests

+ need their own real capability and artifact evidence.

SkyPilot is the sole orchestrator. Argo is deprecated.

Partner model: partners listed in the ecosystem must run workloads on Nebius infrastructure when accessed through the platform.

LeRobot connects data generation to robot policy training and is the default training framework for robot policy workflows.

The sim-to-real gap is the most important and least-tooled layer. Existing approaches are either deeply custom or unproductized.

## OSS and container packaging

- OSS onboarding ladder (BYOF → workflow → first-class tool):

`docs/architecture/oss-onboarding-ladder.md`

- Container packaging tiers and security baseline:

`docs/workbench/container-packaging.md`

- Machine-readable packaging contract:

`npa/docker/workbench/packaging-contract.yaml`

- Generic BYOF operator skill: `skills/workflows/byof-onboard/SKILL.md`

(`npa workbench byof`, `npa.sdk.workbench.byof`, `workbench.byof.repo`)