mikkeli 73eff1c5d6 Plan: note the boundary protocol is undefined, and what it must carry
The app<->svc-gw channels have no wire format yet. Measured USB link
drops (~3 s per power change, sleeping tablet invisible at link level)
and yukart decision 24 already fix the required fields: heartbeat,
command idempotency key, and utterance id/sequence/terminator/expiry.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-09 16:08:39 +09:00

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Contracts

Part of Project Yukart, making an old 2008 Mitsubishi Z27AG a bit smarter with modern technologies.
This file serves as the minimalist portal to other docs

What this repo is about

The topic namespace, payload schemas and signal registry that every other repo depends on. Rust services, Python tooling and the Dart client all read the same definitions from here.

File Holds
schema/topics.json Topic namespace: payload kind, retention, rate, publisher
schema/envelope.json JSON Schema for the decoded-signal envelope
schema/signals.json Signal registry — the single source for name, unit, type and range

The Z27AG DBC lands here too, once Phase 2 produces one.

  • For implementation practice guidelines, refer to the guidelines;
  • For implementation plans and history, refer to them;
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Description
Topic namespace, payload schemas and signal registry
Readme 146 KiB