The artifact record written into every record this perceiver touched.
True when the perceiver can run at all here (binary present, module installed).
OptionalloadLoad what the perceiver needs before its first artifact() — an optional
module, say — resolving false when it cannot. The OCR tier awaits it before
asking for the artifact, so a perceiver built and handed over as it is works.
Stable name, e.g.
ocr.