Diff: design-system/design-primitive-vocabulary.es
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| schema: foundry-doc-v1 | schema: foundry-doc-v1 |
| title: "Design System — Primitive Vocabulary Rationale" | title: "Design System — Primitive Vocabulary Rationale" |
| slug: design-primitive-vocabulary | slug: design-primitive-vocabulary |
| category: design-system | category: design-system |
| type: reference | type: reference |
| quality: complete | quality: complete |
| status: active | status: active |
| audience: public | audience: public |
| bcsc_class: public-disclosure-safe | bcsc_class: public-disclosure-safe |
| language_protocol: PROSE-TOPIC | language_protocol: PROSE-TOPIC |
| last_edited: 2026-05-06 | last_edited: 2026-05-06 |
| editor: pointsav-engineering | editor: pointsav-engineering |
| paired_with: design-primitive-vocabulary.es.md | paired_with: design-primitive-vocabulary.es.md |
| cites: | cites: |
| - wcag-22 | - wcag-22 |
| - dtcg-spec | - dtcg-spec |
| - doctrine-38 | - doctrine-38 |
| --- | --- |
| ## What the substrate kept structurally | ## What the substrate kept structurally |
| The substrate's primitive token layer preserves four structural patterns the modern design-system field has converged on (2018–2026): | The substrate's primitive token layer preserves four structural patterns the modern design-system field has converged on (2018–2026): |
| 1. **Numeric color scales (10 / 20 / ... / 100)** — established across the modern design-system field. A practitioner arriving from any major design system recognises the scale on first encounter. | 1. **Numeric color scales (10 / 20 / ... / 100)** — established across the modern design-system field. A practitioner arriving from any major design system recognises the scale on first encounter. |
| 2. **Primitive → Semantic → Component layering** — primitives ground the value; semantics map the role; components consume semantics. DTCG 2025.10 formalised aliasing across layers; the substrate uses the canonical alias syntax (`{semantic.token}`). | 2. **Primitive → Semantic → Component layering** — primitives ground the value; semantics map the role; components consume semantics. DTCG 2025.10 formalised aliasing across layers; the substrate uses the canonical alias syntax (`{semantic.token}`). |
| 3. **Productive vs Expressive type split** — the field's two-track typography model (UI-functional vs marketing-expressive) is structurally the right answer; most modern systems implement it under different names. The substrate ships Utility + Display. | 3. **Productive vs Expressive type split** — the field's two-track typography model (UI-functional vs marketing-expressive) is structurally the right answer; most modern systems implement it under different names. The substrate ships Utility + Display. |
| 4. **Numeric spacing scale (1..13)** — every modern design system ships ~12–15 step spacing scales aligned to a 4px or 8px base. The substrate uses 8px-base 13-step. | 4. **Numeric spacing scale (1..13)** — every modern design system ships ~12–15 step spacing scales aligned to a 4px or 8px base. The substrate uses 8px-base 13-step. |
| These patterns are not the intellectual property of any single design system — they are the field's shared vocabulary. Re-implementing them is the correct architectural choice for any 2026 design system that wants practitioner pickup without re-teaching basics. | These patterns are not the intellectual property of any single design system — they are the field's shared vocabulary. Re-implementing them is the correct architectural choice for any 2026 design system that wants practitioner pickup without re-teaching basics. |
| ## What the substrate replaced | ## What the substrate replaced |
| The substrate uses PointSav-original vocabulary, hex values, font choices, and content. Specifically: | The substrate uses PointSav-original vocabulary, hex values, font choices, and content. Specifically: |
| | Surface | Common field convention | Substrate choice | Why replaced | | | Surface | Common field convention | Substrate choice | Why replaced | |
| |---|---|---|---| | |---|---|---|---| |
| | Color family names | `gray`, `blue`, `red`, `green`, `yellow` | `neutral`, `primary`, `positive`, `caution`, `critical` | Role-names per Agent B research §9. PointSav's names describe role, not chromatic family — tenants who shift their brand from blue to teal don't have to rename tokens. | | | Color family names | `gray`, `blue`, `red`, `green`, `yellow` | `neutral`, `primary`, `positive`, `caution`, `critical` | Role-names per Agent B research §9. PointSav's names describe role, not chromatic family — tenants who shift their brand from blue to teal don't have to rename tokens. | |
| | Hex values | Vendor-specific shades | PointSav-chosen shades (e.g., Primary 60 = `#234ed8`) | Avoid IP entanglement; the substrate stands on its own values. | | | Hex values | Vendor-specific shades | PointSav-chosen shades (e.g., Primary 60 = `#234ed8`) | Avoid IP entanglement; the substrate stands on its own values. | |
| | Spacing token name | `spacing-01` through `spacing-13` (zero-padded) | `space-1` through `space-13` (no zero-pad) | Slightly cleaner; same numeric scale; same 8px-base structure. | | | Spacing token name | `spacing-01` through `spacing-13` (zero-padded) | `space-1` through `space-13` (no zero-pad) | Slightly cleaner; same numeric scale; same 8px-base structure. | |
| | Type-scale family names | `productive-01..N`, `expressive-01..N` | `utility-1..4`, `display-1..4` | Same conceptual split; PointSav-original names. | | | Type-scale family names | `productive-01..N`, `expressive-01..N` | `utility-1..4`, `display-1..4` | Same conceptual split; PointSav-original names. | |
| | Motion easing names | `ease-productive`, `ease-expressive`, `ease-entrance`, `ease-exit` | `ease-utility`, `ease-display`, `ease-enter`, `ease-exit` | Same four-curve set; aligned to the type-scale renaming. | | | Motion easing names | `ease-productive`, `ease-expressive`, `ease-entrance`, `ease-exit` | `ease-utility`, `ease-display`, `ease-enter`, `ease-exit` | Same four-curve set; aligned to the type-scale renaming. | |
| | Duration names | `fast-01`, `fast-02`, `moderate-01`, `moderate-02`, `slow-01`, `slow-02` | `speed-1` through `speed-6` | Same six-step scale; cleaner naming. | | | Duration names | `fast-01`, `fast-02`, `moderate-01`, `moderate-02`, `slow-01`, `slow-02` | `speed-1` through `speed-6` | Same six-step scale; cleaner naming. | |
| | Border radius names | `radius-01`, `radius-02`, `radius-03` | `corner-1`, `corner-2`, `corner-3` | Same three-step scale; differentiated naming. | | | Border radius names | `radius-01`, `radius-02`, `radius-03` | `corner-1`, `corner-2`, `corner-3` | Same three-step scale; differentiated naming. | |
| | Default font | A corporate-sponsored open-source face | Inter (community open-source, SIL OFL 1.1) + system stack fallback | No corporate brand association; Inter is the modern UI workhorse; system stack ensures graceful degradation. | | | Default font | A corporate-sponsored open-source face | Inter (community open-source, SIL OFL 1.1) + system stack fallback | No corporate brand association; Inter is the modern UI workhorse; system stack ensures graceful degradation. | |
| | Theme names | Brand-specific light/dark labels | `pointsav-brand` (canonical), per-tenant variants | PointSav ships the canonical brand and SMB customers ship their own. | | | Theme names | Brand-specific light/dark labels | `pointsav-brand` (canonical), per-tenant variants | PointSav ships the canonical brand and SMB customers ship their own. | |
| ## What the substrate kept verbatim from broader convention | ## What the substrate kept verbatim from broader convention |
| These are field-shared, not vendor-proprietary: | These are field-shared, not vendor-proprietary: |
| - `$type: "color"`, `$value`, `$description` — DTCG 2025.10 spec syntax | - `$type: "color"`, `$value`, `$description` — DTCG 2025.10 spec syntax |
| - `{path.to.token}` reference syntax — DTCG aliasing | - `{path.to.token}` reference syntax — DTCG aliasing |
| - WCAG 2.2 AAA contrast floor — accessibility standard | - WCAG 2.2 AAA contrast floor — accessibility standard |
| - `prefers-reduced-motion` query — CSS Media Queries Level 5 | - `prefers-reduced-motion` query — CSS Media Queries Level 5 |
| - 8px base grid for spacing — common across the field | - 8px base grid for spacing — common across the field |
| These are the open standards the substrate inherits as an open standards consumer. | These are the open standards the substrate inherits as an open standards consumer. |
| ## Why the muscle-memory matters | ## Why the muscle-memory matters |
| A designer or developer arriving from any modern design-system background recognises the substrate's structural patterns within seconds: | A designer or developer arriving from any modern design-system background recognises the substrate's structural patterns within seconds: |
| - "Numeric color scale, lower numbers lighter — same as everywhere else." | - "Numeric color scale, lower numbers lighter — same as everywhere else." |
| - "Primitive → semantic → component layering — same as DTCG aliasing." | - "Primitive → semantic → component layering — same as DTCG aliasing." |
| - "Two type tracks for UI vs expressive — same as the productive/expressive split." | - "Two type tracks for UI vs expressive — same as the productive/expressive split." |
| This recognition is the cognitive on-ramp. It is the substrate's biggest piece of free leverage — a practitioner ramps in days, not weeks. Discarding it for novelty's sake would be a bad trade. | This recognition is the cognitive on-ramp. It is the substrate's biggest piece of free leverage — a practitioner ramps in days, not weeks. Discarding it for novelty's sake would be a bad trade. |
| ## Why the vocabulary matters | ## Why the vocabulary matters |
| A token named for a chromatic family in PointSav's code that uses a vendor's exact shade puts the substrate one trademark dispute away from a rebrand. A token named by role with a PointSav-chosen shade does not. | A token named for a chromatic family in PointSav's code that uses a vendor's exact shade puts the substrate one trademark dispute away from a rebrand. A token named by role with a PointSav-chosen shade does not. |
| The structural patterns are field-shared; the literal tokens are not. | The structural patterns are field-shared; the literal tokens are not. |
| ## See Also | ## See Also |
| - [[design-philosophy]] | - [[design-philosophy]] |
| - [[design-color]] | - [[design-color]] |
| - [[design-typography]] | - [[design-typography]] |
| ## References | ## References |
| - W3C Design Tokens Community Group format — https://design-tokens.github.io/community-group/format/ | - W3C Design Tokens Community Group format — https://design-tokens.github.io/community-group/format/ |
| - WCAG 2.2 — https://www.w3.org/TR/WCAG22/ | - WCAG 2.2 — https://www.w3.org/TR/WCAG22/ |
| - Doctrine claim #38 — `~/Foundry/DOCTRINE.md` §III row 38 | - Doctrine claim #38 — `~/Foundry/DOCTRINE.md` §III row 38 |
| - Convention — `~/Foundry/conventions/design-system-substrate.md` | - Convention — `~/Foundry/conventions/design-system-substrate.md` |