docs/visual-schema.md

Visual Schema

Every visual result includes:

• asset_id
• view_type
• lens_name
• lens_version
• parameters_hash
• confidence
• payload_json
• provenance_json

Derived views are cached by:

sha256(asset bytes) + lens name + lens version + canonicalized parameters

This lets a later text-only turn reuse previous visual evidence without re-uploading or recomputing the image.