Grammars

Wire formats and grammars — the on-disk and on-wire contracts. Distinct from runtime design (which lives in software/runtime/) and from authoring patterns (which live in software/cartridges/authoring/).

character-set.md — KN-86 Code Page, CP437 box drawing, Press Start 2P bitmap font, Unicode roadmap.
clip-format.md — clip binary format (terminal animation primitive).
coprocessor-protocol.md — Pi ↔ Pico UART wire format (frame envelope, types, payload layouts, error taxonomy). Cart-bus frame types obsoleted by adr/ADR-0019; PSG + OLED + session-control remain canonical.

Stubs / future : cartridge-format.md (.kn86 container, currently spec’d inside adr/ADR-0006), cipher-line-grammar.md (voice production grammar, currently inside software/runtime/cipher-voice.md). Splits filed as follow-up.

../../runtime/cipher-voice.md — runtime engine that produces / consumes the CIPHER grammar.
../../runtime/coprocessor-bridge.md — Pi-side implementation of the coprocessor protocol (planned; design lives in runtime/).
../../cartridges/authoring/clip-system.md — authoring view of the clip primitive.
adr/ADR-0006, ADR-0015, ADR-0017, ADR-0019.

Grammars

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