User doctrinal decision 2026-05-26: `scope: ['sema']` declares
**participation** in sema. It does NOT impose the obligation of
shipping a pack. The new `expression` field on Morfo declares HOW the
component contributes its perceptual signature.
Schema change (src/uix/morfo/types.ts + schema.ts):
type SemaExpressionMode = 'pack' | 'family-default' | 'delegated' | 'none';
interface Morfo {
// ...
expression?: SemaExpressionMode;
}
Semantics:
- 'pack' — sema/components/{kebab}.ts cascades the signature
- 'family-default' — use family base + intent deltas as-is (no override)
- 'delegated' — composite; perceptual expression lives in children's packs
- 'none' — explicit opt-out (rare; reserved for headless contracts)
Coverage check (scripts/morfo-vocabulary-check.ts §4):
FAIL events declared + no 'sema' in scope — incoherent
WARN scope:sema + events + no pack + no expression — ambiguous
OK scope:sema + events + (pack OR expression) — explicit
OK no events — coverage N/A
Pack discovery is automatic from filesystem; the morfo doesn't need to
declare `expression: 'pack'` redundantly. Lint passes when a pack file
exists at `src/uix/sema/components/{kebab}.ts`.
Applied to 5 morfos that had events but no sema scope (incoherent state):
- announce, clipboard, listbox, virtual-grid, virtual-list
now declare scope: ['soma', 'sema'] + expression: 'family-default'.
Applied to 28 morfos that had scope:sema + events but no pack:
- 4 composites (date-picker, date-range-picker, time-picker,
time-range-picker) → expression: 'delegated'
- 24 others (button, card, carousel, collapsible, color-field, command,
context-menu, drag-drop, dropdown-menu, feed, grid-list, menubar,
month-grid, navigation-menu, range-calendar, switch, table, time-field,
toggle-group, toggle, tooltip, tree-grid, tree-view, year-grid)
→ expression: 'family-default'
The 29 morfos that already have packs are not touched; the lint
discovers their packs from the filesystem.
Pending follow-up (separate commits per author's plan):
- Create packs for high-frequency toggles (switch, toggle, toggle-group)
- Create packs for menus / navigation / tree (menubar, navigation-menu,
context-menu, dropdown-menu, tree-view, tree-grid)
- Review card scope (may not need sema scope at all)
- Per-component review of the rest
Verification:
- npm run morfo:vocabulary: EXIT 0
- 0 coverage FAILs, 0 coverage WARNs
- vitest src/uix/sema src/uix/morfo: 195/195 pass
- 7 name-shape WARNs remaining are all words.* (separate dev track)
Closes P1 #3 from src/uix/audit-codex-full-1.md (Sema coverage policy).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
