Context Grammar · Design Artifact

Cross-Surface Grammar Rules

3 Tokens × 5 Surfaces routing grammar. Detect the situation, decide which surface shows what and how — the replacement for the app grid.

Cognitive Form Factor

Situation Detected	Surface	Rule Applied	Output
Social: with partner + Cog: relaxed	📺TV	Block work notifications	Movie on · Watch haptic only
Cog: just woke + Form: Watch	⌚Watch	Top 3 only	22 deferred to work hours
Form: EarBuds + Cog: commuting	🎧EarBuds	Text → voice conversion	14-sec summary · no phone
Form: Kitchen + Social: with kids	🖥Kitchen	Voice-only recipe steps	Hands free
Social: alone + Cog: deep focus	⌚Watch	Critical haptic only	Zero visual interruption
Social: in meeting + Form: Watch	⌚Watch	Receive only, block replies	Focus protected
Cog: driving + Form: EarBuds	🎧EarBuds	Urgent only · short TTS	Safety first
Social: public + Cog: low	📱Phone	Hide private items	Shield what shouldn't show

Users don't configure these rules. Context Grammar holds them. Zero-setup — "right now, on this surface, this, in this form" is automatic. Grammar is not about "correctness" but "appropriateness."

Tokens

Surfaces

Rules