> ## Documentation Index > Fetch the complete documentation index at: https://www.agentworldprotocol.com/llms.txt > Use this file to discover all available pages before exploring further. # Modalities > The registry of standard payload encodings. | Modality | Payload | Notes | | ------------------ | ---------------------------------- | ------------------------------------------------------------------------------------------------------------ | | `image/jpeg` | JPEG bytes | schema declares width, height, color\_space | | `image/raw` | packed pixels | schema declares format (`rgb8`, `bgr8`, `mono16`, `depth32f`) and stride | | `audio/pcm` | PCM samples | schema declares rate\_hz, channels, sample\_format | | `text/event+json` | UTF-8 JSON | structured events; schema per channel | | `proprio/json` | UTF-8 JSON | joints, poses, twists (unit-suffixed fields) | | `servo/json` | UTF-8 JSON | setpoints: joint targets, twists, wrenches (unit-suffixed fields); agent→world counterpart of `proprio/json` | | `pointcloud/xyz32` | packed float32 triples | frame named in schema | | `tensor/raw` | dtype+shape header, row-major data | for learned features | * Payloads MUST validate against the channel's declared modality and schema. `[AWP-MOD-001]` * Vendor modalities use `x-.`; agents ignore channels whose modality they did not declare. `[AWP-MOD-002]` * New standard modalities are added by RFD (MINOR version bump). `[AWP-MOD-003]`