JuliusBrussee/caveman · error

ccr typed object dependencies decode: %w

Error message

ccr typed object dependencies decode: %w

What it means

Wraps the json.Unmarshal failure on the dependencies_json column in scanObject. The stored dependency list is not valid JSON (corrupt or hand-edited row), so the typed object cannot be reconstructed and the read fails closed.

Source

Thrown at engine/ccr/store_sqlite.go:564

}

func scanObject(scanner interface{ Scan(...any) error }) (Object, error) {
	var obj Object
	var created, deps string
	if err := scanner.Scan(
		&obj.ID, &obj.Type, &obj.ContentHash, &obj.Source, &created, &obj.RepositoryState,
		&obj.SessionID, &obj.TransformVersion, &obj.Currentness, &obj.Lifecycle, &deps,
		&obj.OriginalByteLength, &obj.StoredByteLength, &obj.Data,
	); err != nil {
		return Object{}, err
	}
	parsed, err := time.Parse(time.RFC3339Nano, created)
	if err != nil {
		return Object{}, fmt.Errorf("ccr typed object created_at: %w", err)
	}
	obj.CreatedAt = parsed
	if err := json.Unmarshal([]byte(deps), &obj.Dependencies); err != nil {
		return Object{}, fmt.Errorf("ccr typed object dependencies decode: %w", err)
	}
	return obj, nil
}

const objectColumns = `object_id, object_type, content_hash, source, created_at,
 repository_state, session_id, transform_version, currentness, lifecycle,
 dependencies_json, original_byte_length, stored_byte_length, data`

func (s *Store) GetObject(id string) (Object, error) {
	obj, err := scanObject(s.db.QueryRow(`SELECT `+objectColumns+` FROM typed_objects WHERE object_id = ?`, id))
	if errors.Is(err, sql.ErrNoRows) {
		return Object{}, ErrNotFound
	}
	if err != nil {
		return Object{}, fmt.Errorf("ccr typed object get: %w", err)
	}
	return obj, nil
}

View on GitHub (pinned to 766dce6b13)

Solutions

1. Repair or delete the row with the malformed dependencies_json
2. Write objects only through PutObject so dependencies are marshaled correctly
3. Treat persistent decode failures as database corruption and recreate the store

When it happens

Trigger: Thrown at engine/ccr/store_sqlite.go:564 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of JuliusBrussee/caveman@766dce6b13 (2026-08-18). Data as JSON: /api/errors/ffa832f40b9f84b2. Report an issue: GitHub.