SO-101 Ball-in-Cup ACT — external metadata assessment

Evidence boundary

The validator inspected the listed metadata files only. It did not download weights, import policy code, run inference, control hardware, execute simulation or verify model-card results.

{
  "method": "metadata_only",
  "assessor": "Known Robot",
  "validator_version": "1.3.0",
  "assessed_at": "2026-09-24T15:35:00.000Z",
  "executed_policy_code": false,
  "evaluated_policy": false,
  "established_compatibility": false,
  "status": "incomplete"
}

Generated portable manifest

This is the validator output, including nulls. The separately pinned Hub revision above establishes this assessment snapshot; it is not rewritten into the raw manifest as if the validator discovered it.

{
  "schema_version": "1.0",
  "skill": {
    "name": "Abdul004 So101 Act Policy V5",
    "version": null,
    "source": {
      "type": "local",
      "repository": null,
      "revision": null
    }
  },
  "policy": {
    "framework": "lerobot",
    "framework_version": null,
    "architecture": "act"
  },
  "hardware": {
    "robot_family": null,
    "gripper": null,
    "sensors": []
  },
  "runtime": {
    "control_frequency_hz": null,
    "observation_shape": {
      "observation.state": {
        "type": "STATE",
        "shape": [
          6
        ]
      },
      "observation.images.wrist": {
        "type": "VISUAL",
        "shape": [
          3,
          480,
          640
        ]
      },
      "observation.images.overhead": {
        "type": "VISUAL",
        "shape": [
          3,
          480,
          640
        ]
      }
    },
    "action_shape": {
      "action": {
        "type": "ACTION",
        "shape": [
          6
        ]
      }
    },
    "dependencies": []
  },
  "dataset": {
    "repository": "abdul004/so101_ball_in_cup_v5",
    "revision": null,
    "schema": null
  },
  "compatibility": [],
  "evaluations": []
}

Missing-information report

Missing declarations remain visible. Model-card prose does not silently satisfy portable metadata fields.

• skill.version — Artifact version is missing.
• skill.source.repository — Source repository is missing from inspected metadata.
• skill.source.revision — Immutable source revision is missing from inspected metadata.
• policy.framework_version — Framework version is not pinned.
• hardware.robot_family — Robot family was described by the model card but not declared in portable metadata.
• hardware.gripper — Gripper is not declared.
• hardware.sensors — Sensors were described by the model card but not declared in portable metadata.
• runtime.control_frequency_hz — Control frequency is not declared.
• runtime.dependencies — Runtime dependencies are not declared.
• dataset.revision — Dataset revision is not pinned.
• dataset.schema — Dataset schema is not declared.
• dependency.unresolved — Resolved dependency evidence is missing.

Cautions

• evaluations — No Known Robot measured evaluation was performed.
• compatibility — No Known Robot compatibility result was established.

Upstream model-card claims

These are attributed summaries, not Known Robot measurements or endorsements.

• The model card describes a 6-DOF SO-101 with overhead and wrist cameras for a ball-in-cup task. Inspect the pinned model card ↗
• The model card reports VLM scores and qualitative grasp, lift, transport and placement observations; Known Robot did not reproduce or verify them. Inspect the pinned model card ↗

Inspected file inventory

Hashes make the metadata snapshot auditable without republishing upstream checkpoint weights.

[
  {
    "path": "README.md",
    "sha256": "a2cd03e862f53315278c6b7dceb45a0fb9232f3e898e56e9450d8fc821938a26",
    "bytes": 3670
  },
  {
    "path": "config.json",
    "sha256": "98c5f453f9ede1d31597206b16745077cbc28ac1aaf939b1407872831063fd34",
    "bytes": 1715
  },
  {
    "path": "train_config.json",
    "sha256": "532f0f412cf2fb3a132689eff2225999eb83cadee5750688aea51dbfd3ce4798",
    "bytes": 5394
  },
  {
    "path": "policy_preprocessor.json",
    "sha256": "94f0567207c15ed824a173f69b0026b834246f608be8e48e76b8de9b019f2e80",
    "bytes": 1331
  },
  {
    "path": "policy_postprocessor.json",
    "sha256": "648b415125a183dfd6cbc47c1dc04ab3f2d912654ef22a12ca5e8b93d7d85cdd",
    "bytes": 660
  }
]

Limitations and next evidence

• Only repository metadata was inspected; weights were not downloaded and policy code was not executed.
• All task, hardware and result descriptions remain claims attributed to the upstream model card.
• This record is not physical evidence, an independent reproduction, a safety review or a compatibility result.

A future measured evaluation must be published as a separate evaluation record with an execution protocol, trials, outcomes and evidence. It will not overwrite or retroactively strengthen this assessment.