Modalities and governed ecosystem¶
Unison expands through independently certified slices. The current engineering foundation supports local streaming speech with captions and interruption, an adaptive keyboard/screen-reader visual surface, privacy/cost/risk-aware model routing, and signed, compatibility-checked, revocable capability packages.
Current support¶
- Local speech input can be interrupted by voice or a labelled Stop speech control. Partial and final captions provide a non-voice path.
- Visual output supports keyboard operation, screen readers, high contrast, reduced motion, and a simplified-language preference.
- Model routing prefers local execution and cannot silently exceed the selected disclosure, location, cost, risk, or offline boundary.
- Capability updates expose permission additions and require explicit review before gaining authority. Unknown publishers, invalid signatures, incompatible versions, and revoked packages fail closed.
Every semantic outcome retains confirmation, cancellation, retry, recovery, and dismiss actions when a modality or provider becomes unavailable.
Experimental and deferred¶
Braille, sign, switch/AAC, and haptic projects remain experimental until their hardware matrices, maintenance ownership, incident procedures, and research with people who use those access methods are complete. Simulation alone is not release evidence.
BCI, robotics, spatial control, and autonomous financial actions remain deferred and are not part of the current engineering boundary.
Extension requirements¶
New adapters and capability packages must declare assurance, privacy and metadata behavior, cancellation and fallback, compatibility, maintainer and incident contacts, signed provenance, and an SBOM. Ecosystem expansion never turns a modality, model, channel, or delegated agent into independent authority.