affaan-m/ECC · error · ValueError

Invalid asset origin

Error message

Invalid asset origin

What it means

Each asset must declare its origin from a fixed allowed set (ORIGINS). The library throws this when `asset.get('origin')` is absent or not in that tuple, because origin controls provenance rules (internal vs external_result) and provenance validation depends on it.

Solutions

  1. Set 'origin' to a value in the ORIGINS tuple (check the ORIGINS constant in assets.py for the exact allowed strings)
  2. Check the current ORIGINS definition if migrating from an older manifest — origin vocabulary may have changed
  3. Inspect the offending asset entry to confirm the origin field exists and its exact value

Example fix

// before
{"id": "a1", "modality": "image", "origin": "generated"}
// after
{"id": "a1", "modality": "image", "origin": "internal"}
Defensive patterns

Strategy: validation

Validate before calling

ORIGINS = frozenset(load_origins_from_library())
for a in assets:
    if a.get("origin") not in ORIGINS:
        raise ValueError(f"asset {a.get('id')}: invalid origin {a.get('origin')!r}")

Type guard

def has_valid_origin(a: dict) -> bool:
    return a.get("origin") in KNOWN_ORIGINS

Try / catch

try:
    ingest_assets(assets)
except ValueError as e:
    if str(e) == "Invalid asset origin":
        log.error("check 'origin' values against ORIGINS in assets.py"); revalidate_after_fix()
    else:
        raise

Prevention

When it happens

Trigger: ingest_assets or validate_assets called with an asset whose 'origin' key is missing, misspelled (e.g. 'external result', 'ExternalResult'), or uses a legacy origin name no longer in ORIGINS.

Common situations: Hand-edited asset manifests; manifests produced by an older tool version with different origin vocabulary; forgetting origin entirely when writing assets by hand; copying assets between projects with different origin schemes.

Understand the failure class

Background: Invalid enum value errors: "Unknown type", "Invalid scope", "must be one of" — when a string is not on the library's allowed list — this error's family across 23 libraries.

Related errors


AI-assisted analysis of affaan-m/ECC@8321021c54 (2026-09-16). Data as JSON: /api/errors/50bd2290ce7de25c. Report an issue: GitHub.

Appendix: source

Thrown at skills/taste-application/scripts/tasteforge/assets.py:102

        raise ValueError('Expected a JSON object')
    return data


def _assets(value: Any) -> list[dict[str, Any]]:
    if not isinstance(value, list) or not value:
        raise ValueError('assets must be a nonempty list')
    ids = set()
    for asset in value:
        if not isinstance(asset, dict):
            raise ValueError('Each asset must be an object')
        asset_id = _text(asset.get('id'), 'asset id')
        if asset_id in ids:
            raise ValueError(f'Duplicate asset id: {asset_id}')
        ids.add(asset_id)
        if asset.get('modality') not in tuple(MODALITIES):
            raise ValueError('modality must be image, video or 3d_asset')
        if asset.get('origin') not in tuple(ORIGINS):
            raise ValueError('Invalid asset origin')
    return value


def _provenance(asset: dict[str, Any], base: Path, verify: bool) -> dict[str, Any] | None:
    source = asset.get('provider_provenance')
    if asset['origin'] != 'external_result':
        if source is not None:
            raise ValueError('Provider provenance requires external_result origin')
        return None
    if not isinstance(source, dict):
        raise ValueError('external_result requires provider provenance and local evidence')
    provider = _text(source.get('provider'), 'provider')
    identifiers = {key: _text(source[key], key) for key in ('request_id', 'workflow_id')
                   if key in source}
    if not identifiers:
        raise ValueError('Provider provenance requires request_id or workflow_id')
    if verify:
        evidence = _verify_binding(source.get('evidence'), base)

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