1.6 KiB
1.6 KiB
Why
The Phase 3D native client must request a bounded display mode and send provider-neutral absolute-pointer and high-resolution scroll input. The current wire contract exposes only policy-selected stream dimensions and rejects both new input kinds.
What Changes
- Add one bounded
DisplayModeobject and optional display fields to session request/session/manifest contracts while keeping control wire version 1. - Register
display.request.v1,input.absolute.v1, andinput.scroll.v1so every new behavior is explicitly negotiated. - Extend VGI1 with exact absolute-pointer and signed scroll bodies while preserving all existing kind encodings.
- Require a new immutable Protocol release candidate after deterministic Go/Rust/Swift generation and conformance pass; existing tags remain unchanged.
Capabilities
New Capabilities
session-display-mode: Optional feature-gated requested and effective display mode disclosure for native session creation and manifests.
Modified Capabilities
gateway-input-feedback: Add negotiated provider-neutral absolute-pointer and high-resolution scroll kinds to the existing sequenced input grammar.
Impact
- JSON Schema, feature registry, VGI frame documentation, fixed conformance fixtures, generated Go/Rust/Swift bindings, and strict validators.
- Connection Server session persistence/allocation and Data Plane input translation after consumers pin the immutable Protocol candidate.
- Protobuf remains unchanged because no observed consumer uses it for these JSON control or VGI payload paths.