Saved references first
Use authorized Studio references whenever possible.reference_image_preview returns verified saved image content; the caller does not supply an arbitrary image URL for the server to fetch. Large originals can return resized previews with separate original and preview hashes.
New attachments
Original PNG, JPEG and WebP references are currently limited to 3 MiB by the upload contracts. Supply an accurate source/usage declaration for the chosen Storyworld. A declaration recorded by an agent is not a separate human rights review. A supported host adapter prepares a destination and operation, verifies the original file’s MIME type, size and hash, and transfers the bytes outside model context. Use the authoritative upload receipt before creating an asset. Where this handoff is unavailable, upload through Studio’s authenticated UI and ask the agent to reuse the saved reference. Do not ask the model to reconstruct attachment bytes, invent a base64 file, fetch an arbitrary caller URL, reveal a masked upload capability or reuse another client’s OAuth credentials.Images, audio and video
- Display and inspect the actual image before describing it as agent-reviewed.
- Use supported media previews or the returned Studio viewer for audio and video.
- A delivered video, inspected stills, full-motion inspection and heard sound are different evidence. Report what was actually reviewed.
- Byte-range media tools are intended for a programmatic file adapter, not base64 copied into chat.
- The current Character speaking preview uses provider-native sound; its voice is separate from the saved ElevenLabs audition.
