syni 0.1.0

Flutter SDK for Syni — adaptive on-device LLM inference with hybrid local/cloud chat, structured persona conditioning, and a streaming chat API designed for the UI thread.

0.1.0

First public release.

Agent layer (package:syni/agent.dart)

• SyniAgent — install lifecycle, model catalog, persona binding, chat / chatStream orchestration, hybrid local/cloud routing via SyniExecutionMode.
• SyniInstaller — model download, tokenizer fetch, SHA-256 verification, cold-start restore from disk.
• SyniCloudClient — HTTP + SSE client for the Syni cloud chat endpoint, sticky session id, HSI forwarded as request context.
• SyniSpecPersona.load(id) — resolves persona JSON from the bundled spec assets so the same persona id consistently produces the same behavior on both client and server.

Runtime layer (package:syni/runtime.dart)

• SyniRuntime — worker-isolate wrapper over the on-device inference engine. Engine load + token generation run on a worker so the UI thread is free.
• SyniRuntimeRequest / SyniRuntimeResponse for direct inference.

Models

• SyniModels catalog with two pre-pinned entries:
  • qwen25_15bInstructQ4 (Qwen 2.5 1.5B Instruct Q4_K_M, ~1.1 GB).
  • gemma3_1bInstructQ4 (Gemma 3 1B Instruct Q4_K_M, ~770 MB, Synheart-hosted mirror).
• Both ship with pinned SHA-256 verified by SyniInstaller at install time.

Personas (bundled assets)

Five spec personas mirrored from syni-spec and bundled under assets/personas/prod/:

• focus.coach.v1
• stress.coach.v1
• cognitive.companion.v1
• performance.coach.v1
• wellness.guide.v1

Refresh via tool/sync_personas.sh.

Notes

• The legacy Syni.initialize / Syni.generate platform-channel API remains exported for backwards compatibility but new code should use the agent layer.