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design language·marginal-signal-ledger

Marginal Signal Ledger

A portable design language for agents: download the markdown first, then inspect the preview, tokens, and rules as needed.

Download DESIGN.md

Portable DESIGN.md source of truth for most agents and apps.

the spec

specification

philosophy
summary
Aya Not Dashboard Data Surfaces is a design language for exploratory knowledge work that avoids dashboard clichés by composing evidence, narrative annotations, and operating state into calm, inspectable surfaces.
values
inquiry before metricsannotated evidencequiet operational clarityresponsive densityartifact accountability
anti-values
×generic KPI dashboards×decorative charts without provenance×placeholder UI×low contrast chrome×unverified artifact links
tokens
borders4 items
accent width
3px
character
precise dividers and left-rule state markers
default width
1px
style
solid
colors16 items
accent
#D78A2F
background
#F6F1E8
border
#D8CDBC
error
#B33A3A
info
#2E5D86
ink_soft
#EEF0EC
muted
#68716B
primary
#275D66
saffron_soft
#F7E3BE
secondary
#8A5A30
success
#2F7A55
surface
#FFFDF8
surface_alt
#ECE5D8
teal_soft
#DCEBE8
text
#20211D
warning
#B8791D
motion3 items
duration
160ms
easing
cubic-bezier(.2,.8,.2,1)
philosophy
instant feedback for filters and selection, no decorative motion
radii5 items
full
9999px
lg
16px
md
10px
none
0
sm
4px
shadows3 items
lg
0 30px 70px rgba(32,33,29,.16)
md
0 14px 34px rgba(32,33,29,.12)
sm
0 1px 2px rgba(32,33,29,.08)
spacing2 items
base
8px
scale
4, 8, 12, 16, 20, 24, 32, 48, 64
surfaces3 items
bg pattern
subtle ruled notebook grid
card style
thin bordered ivory cards with top provenance bars
treatment
flat layered evidence panels
typography8 items
base size
16px
body font
Inter
google fonts url
https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@500;600&display=swap
heading font
Inter
letter spacing
-0.01em
line height
1.55
mono font
IBM Plex Mono
scale ratio
1.2
rules
composition

Replace dashboard blocks with an exploration desk: persistent query context, evidence lanes, annotation cards, and review queues that expose source state.

density

Support high information density with small labels, stable gutters, and compact rows while preserving readable 16px body text.

hierarchy

Lead with narrative headings and active question labels; use monospaced provenance strips and thin accent rules for state rather than oversized metrics.

signature patterns
query lens rail with active hypothesis left-rule accentssource-backed cards with confidence, freshness, and owner metadatanot-dashboard metric tiles that explain why a number mattersevidence matrix rows with review badges and provenance timestampsannotation composer docked to the current selected surface
layout
breakpoints
lg
1024
md
768
sm
640
xl
1280
grid

12 column desktop canvas with 280px inquiry rail, 1fr evidence desk, and responsive single-column mobile stack

whitespace

8px base spacing with 20px card rhythm and 32px section rhythm

guidance
do
  • show source state and review confidence
  • compose surfaces as inquiry tools rather than KPI panels
  • use restrained saffron and teal accents for active state
  • keep mobile order readable
avoid
  • ship placeholder charts
  • hide provenance
  • use neon gradients
  • depend on browser default controls
katagami spec
# Marginal Signal Ledger

## Philosophy

Aya Not Dashboard Data Surfaces is a design language for exploratory knowledge work that avoids dashboard clichés by composing evidence, narrative annotations, and operating state into calm, inspectable surfaces.

### Values

- inquiry before metrics
- annotated evidence
- quiet operational clarity
- responsive density
- artifact accountability

### Anti-Values

- generic KPI dashboards
- decorative charts without provenance
- placeholder UI
- low contrast chrome
- unverified artifact links

### Visual Character

- warm paper background with ruled data-grid texture and crisp ink-like text
- layered ivory surfaces connected by thin rails, tabs, and provenance strips
- saffron and teal accents used sparingly for active hypotheses, confidence, and review state
- compact metadata pills and monospaced labels that make source status visible

## Tokens

### Borders

- **Accent Width**: 3px
- **Character**: precise dividers and left-rule state markers
- **Default Width**: 1px
- **Style**: solid

### Colors

| Name | Value |
|------|-------|
| accent | `#D78A2F` |
| background | `#F6F1E8` |
| border | `#D8CDBC` |
| error | `#B33A3A` |
| info | `#2E5D86` |
| ink_soft | `#EEF0EC` |
| muted | `#68716B` |
| primary | `#275D66` |
| saffron_soft | `#F7E3BE` |
| secondary | `#8A5A30` |
| success | `#2F7A55` |
| surface | `#FFFDF8` |
| surface_alt | `#ECE5D8` |
| teal_soft | `#DCEBE8` |
| text | `#20211D` |
| warning | `#B8791D` |

### Motion

- **Duration**: 160ms
- **Easing**: cubic-bezier(.2,.8,.2,1)
- **Philosophy**: instant feedback for filters and selection, no decorative motion

### Radii

- **Full**: 9999px
- **Lg**: 16px
- **Md**: 10px
- **None**: 0
- **Sm**: 4px

### Shadows

- **Lg**: 0 30px 70px rgba(32,33,29,.16)
- **Md**: 0 14px 34px rgba(32,33,29,.12)
- **Sm**: 0 1px 2px rgba(32,33,29,.08)

### Spacing

- **Base**: 8px
- **Scale**: [4,8,12,16,20,24,32,48,64]

### Surfaces

- **Bg Pattern**: subtle ruled notebook grid
- **Card Style**: thin bordered ivory cards with top provenance bars
- **Treatment**: flat layered evidence panels

### Typography

- **Base Size**: 16px
- **Body Font**: Inter
- **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@500;600&display=swap
- **Heading Font**: Inter
- **Letter Spacing**: -0.01em
- **Line Height**: 1.55
- **Mono Font**: IBM Plex Mono
- **Scale Ratio**: 1.2

## Rules

### Composition

Replace dashboard blocks with an exploration desk: persistent query context, evidence lanes, annotation cards, and review queues that expose source state.

### Density

Support high information density with small labels, stable gutters, and compact rows while preserving readable 16px body text.

### Hierarchy

Lead with narrative headings and active question labels; use monospaced provenance strips and thin accent rules for state rather than oversized metrics.

### Signature Patterns

- query lens rail with active hypothesis left-rule accents
- source-backed cards with confidence, freshness, and owner metadata
- not-dashboard metric tiles that explain why a number matters
- evidence matrix rows with review badges and provenance timestamps
- annotation composer docked to the current selected surface

## Layout

### Breakpoints

- **Lg**: 1024
- **Md**: 768
- **Sm**: 640
- **Xl**: 1280

### Grid

12 column desktop canvas with 280px inquiry rail, 1fr evidence desk, and responsive single-column mobile stack

### Whitespace

8px base spacing with 20px card rhythm and 32px section rhythm

## Guidance

### Do

- show source state and review confidence
- compose surfaces as inquiry tools rather than KPI panels
- use restrained saffron and teal accents for active state
- keep mobile order readable

### Don't

- ship placeholder charts
- hide provenance
- use neon gradients
- depend on browser default controls
DESIGN.md
---
version: "alpha"
name: "Marginal Signal Ledger"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
  accent: "#D78A2F"
  background: "#F6F1E8"
  border: "#D8CDBC"
  error: "#B33A3A"
  info: "#2E5D86"
  ink_soft: "#EEF0EC"
  muted: "#68716B"
  primary: "#275D66"
  saffron_soft: "#F7E3BE"
  secondary: "#8A5A30"
  success: "#2F7A55"
  surface: "#FFFDF8"
  surface_alt: "#ECE5D8"
  teal_soft: "#DCEBE8"
  text: "#20211D"
  warning: "#B8791D"
typography:
  headline-lg:
    fontFamily: "Inter"
    fontSize: "1.728rem"
    fontWeight: 700
    lineHeight: 1.1
    letterSpacing: "-0.01em"
  headline-md:
    fontFamily: "Inter"
    fontSize: "1.44rem"
    fontWeight: 600
    lineHeight: 1.15
    letterSpacing: "-0.01em"
  body-md:
    fontFamily: "Inter"
    fontSize: "16px"
    fontWeight: 400
    lineHeight: 1.55
    letterSpacing: "-0.01em"
  label-md:
    fontFamily: "IBM Plex Mono"
    fontSize: "0.75rem"
    fontWeight: 600
    lineHeight: 1
    letterSpacing: "0.08em"
rounded:
  full: "9999px"
  lg: "16px"
  md: "10px"
  none: "0px"
  sm: "4px"
spacing:
  base: "8px"
  xs: "4px"
  sm: "8px"
  md: "12px"
  lg: "16px"
  xl: "20px"
  2xl: "24px"
  3xl: "32px"
  4xl: "48px"
  step-8: "64px"
components:
  color-reference-accent:
    backgroundColor: "{colors.accent}"
  color-reference-background:
    backgroundColor: "{colors.background}"
  color-reference-border:
    backgroundColor: "{colors.border}"
  color-reference-error:
    backgroundColor: "{colors.error}"
  color-reference-info:
    backgroundColor: "{colors.info}"
  color-reference-ink_soft:
    backgroundColor: "{colors.ink_soft}"
  color-reference-muted:
    backgroundColor: "{colors.muted}"
  color-reference-primary:
    backgroundColor: "{colors.primary}"
  color-reference-saffron_soft:
    backgroundColor: "{colors.saffron_soft}"
  color-reference-secondary:
    backgroundColor: "{colors.secondary}"
  color-reference-success:
    backgroundColor: "{colors.success}"
  color-reference-surface:
    backgroundColor: "{colors.surface}"
  color-reference-surface_alt:
    backgroundColor: "{colors.surface_alt}"
  color-reference-teal_soft:
    backgroundColor: "{colors.teal_soft}"
  color-reference-text:
    backgroundColor: "{colors.text}"
  color-reference-warning:
    backgroundColor: "{colors.warning}"
  button-primary:
    backgroundColor: "{colors.primary}"
    textColor: "#ffffff"
    typography: "{typography.label-md}"
    rounded: "{rounded.md}"
    padding: "{spacing.md}"
  card-surface:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.md}"
    padding: "{spacing.md}"
  input-default:
    backgroundColor: "{colors.surface}"
    textColor: "{colors.text}"
    rounded: "{rounded.md}"
    height: "44px"
---

# Marginal Signal Ledger

## Overview

Aya Not Dashboard Data Surfaces is a design language for exploratory knowledge work that avoids dashboard clichés by composing evidence, narrative annotations, and operating state into calm, inspectable surfaces.

### Values

- inquiry before metrics
- annotated evidence
- quiet operational clarity
- responsive density
- artifact accountability

### Anti-Values

- generic KPI dashboards
- decorative charts without provenance
- placeholder UI
- low contrast chrome
- unverified artifact links

### Visual Character

- warm paper background with ruled data-grid texture and crisp ink-like text
- layered ivory surfaces connected by thin rails, tabs, and provenance strips
- saffron and teal accents used sparingly for active hypotheses, confidence, and review state
- compact metadata pills and monospaced labels that make source status visible

## Colors

Use the YAML color tokens as the normative palette. The prose below names the roles agents should preserve when generating UI.

| Token | Value |
|-------|-------|
| accent | `#D78A2F` |
| background | `#F6F1E8` |
| border | `#D8CDBC` |
| error | `#B33A3A` |
| info | `#2E5D86` |
| ink_soft | `#EEF0EC` |
| muted | `#68716B` |
| primary | `#275D66` |
| saffron_soft | `#F7E3BE` |
| secondary | `#8A5A30` |
| success | `#2F7A55` |
| surface | `#FFFDF8` |
| surface_alt | `#ECE5D8` |
| teal_soft | `#DCEBE8` |
| text | `#20211D` |
| warning | `#B8791D` |

## Typography

- **Headline-Lg**: Inter, 1.728rem, weight 700, line-height 1.1.
- **Headline-Md**: Inter, 1.44rem, weight 600, line-height 1.15.
- **Body-Md**: Inter, 16px, weight 400, line-height 1.55.
- **Label-Md**: IBM Plex Mono, 0.75rem, weight 600, line-height 1.

## Layout

### Spacing Tokens

- **Base**: `8px`
- **Xs**: `4px`
- **Sm**: `8px`
- **Md**: `12px`
- **Lg**: `16px`
- **Xl**: `20px`
- **2xl**: `24px`
- **3xl**: `32px`
- **4xl**: `48px`
- **Step-8**: `64px`

### Breakpoints

- **Lg**: 1024
- **Md**: 768
- **Sm**: 640
- **Xl**: 1280

### Grid

12 column desktop canvas with 280px inquiry rail, 1fr evidence desk, and responsive single-column mobile stack

### Whitespace

8px base spacing with 20px card rhythm and 32px section rhythm

## Elevation & Depth

### Shadows

- **Lg**: 0 30px 70px rgba(32,33,29,.16)
- **Md**: 0 14px 34px rgba(32,33,29,.12)
- **Sm**: 0 1px 2px rgba(32,33,29,.08)

## Shapes

### Rounded

- **Full**: `9999px`
- **Lg**: `16px`
- **Md**: `10px`
- **None**: `0px`
- **Sm**: `4px`

### Surfaces

- **Bg Pattern**: subtle ruled notebook grid
- **Card Style**: thin bordered ivory cards with top provenance bars
- **Treatment**: flat layered evidence panels

### Borders

- **Accent Width**: 3px
- **Character**: precise dividers and left-rule state markers
- **Default Width**: 1px
- **Style**: solid

## Components

### Composition

Replace dashboard blocks with an exploration desk: persistent query context, evidence lanes, annotation cards, and review queues that expose source state.

### Density

Support high information density with small labels, stable gutters, and compact rows while preserving readable 16px body text.

### Hierarchy

Lead with narrative headings and active question labels; use monospaced provenance strips and thin accent rules for state rather than oversized metrics.

### Signature Patterns

- query lens rail with active hypothesis left-rule accents
- source-backed cards with confidence, freshness, and owner metadata
- not-dashboard metric tiles that explain why a number matters
- evidence matrix rows with review badges and provenance timestamps
- annotation composer docked to the current selected surface

## shadcn/ui Usage

When the target app uses shadcn/ui, copy DESIGN.md with shadcn instead of the plain DESIGN.md. It contains the same Katagami design-language source plus the shadcn/ui primitives, imports, theme variables, component recipes, and preview-shot guidance.

DESIGN.md with shadcn: `/language/en-019edc14-8a13-79f0-853f-0b88d9841e44/DESIGN.with-shadcn.md`.

The shadcn page also exposes optional machine-readable files for automation, but the human-facing handoff is DESIGN.md with shadcn.

Install recommended primitives with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.

Use these primitives in shadcn apps:
- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table

Implementation rule for agents: import shadcn primitives from `@/components/ui/*`, apply the generated CSS variables first, then compose the language-specific recipes from the companion MD. Katagami remains the source of truth; shadcn names are the implementation surface.

## Do's and Don'ts

- Do show source state and review confidence
- Do compose surfaces as inquiry tools rather than KPI panels
- Do use restrained saffron and teal accents for active state
- Do keep mobile order readable
- Don't ship placeholder charts
- Don't hide provenance
- Don't use neon gradients
- Don't depend on browser default controls
shadcn/ui theme
```json
{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "marginal-signal-ledger",
  "type": "registry:theme",
  "title": "Marginal Signal Ledger shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#F6F1E8",
      "foreground": "#20211D",
      "card": "#FFFDF8",
      "card-foreground": "#20211D",
      "popover": "#FFFDF8",
      "popover-foreground": "#20211D",
      "primary": "#275D66",
      "primary-foreground": "#ffffff",
      "secondary": "#8A5A30",
      "secondary-foreground": "#ffffff",
      "muted": "#68716B",
      "muted-foreground": "#20211D",
      "accent": "#D78A2F",
      "accent-foreground": "#ffffff",
      "destructive": "#B33A3A",
      "border": "#D8CDBC",
      "input": "#D8CDBC",
      "ring": "#D78A2F",
      "chart-1": "#275D66",
      "chart-2": "#8A5A30",
      "chart-3": "#D78A2F",
      "chart-4": "#2F7A55",
      "chart-5": "#B8791D",
      "sidebar": "#FFFDF8",
      "sidebar-foreground": "#20211D",
      "sidebar-primary": "#275D66",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#2E5D86",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#D8CDBC",
      "sidebar-ring": "#D78A2F",
      "radius": "10px"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#275D66",
      "primary-foreground": "#ffffff",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#D78A2F",
      "accent-foreground": "#ffffff",
      "destructive": "#B33A3A",
      "border": "#303642",
      "input": "#303642",
      "ring": "#D78A2F",
      "chart-1": "#275D66",
      "chart-2": "#8A5A30",
      "chart-3": "#D78A2F",
      "chart-4": "#2F7A55",
      "chart-5": "#B8791D",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#275D66",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#D78A2F",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#303642",
      "sidebar-ring": "#D78A2F",
      "radius": "10px"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019edc14-8a13-79f0-853f-0b88d9841e44",
    "slug": "marginal-signal-ledger",
    "componentManifest": [
      "button",
      "card",
      "input",
      "textarea",
      "select",
      "dialog",
      "sheet",
      "tabs",
      "badge",
      "separator",
      "checkbox",
      "switch",
      "slider",
      "tooltip",
      "dropdown-menu",
      "table"
    ],
    "installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
    "nativeTokenNames": {
      "borders": [
        "accent_width",
        "character",
        "default_width",
        "style"
      ],
      "colors": [
        "accent",
        "background",
        "border",
        "error",
        "info",
        "ink_soft",
        "muted",
        "primary",
        "saffron_soft",
        "secondary",
        "success",
        "surface",
        "surface_alt",
        "teal_soft",
        "text",
        "warning"
      ],
      "motion": [
        "duration",
        "easing",
        "philosophy"
      ],
      "radii": [
        "full",
        "lg",
        "md",
        "none",
        "sm"
      ],
      "shadows": [
        "lg",
        "md",
        "sm"
      ],
      "spacing": [
        "base",
        "scale"
      ],
      "surfaces": [
        "bg_pattern",
        "card_style",
        "treatment"
      ],
      "typography": [
        "base_size",
        "body_font",
        "google_fonts_url",
        "heading_font",
        "letter_spacing",
        "line_height",
        "mono_font",
        "scale_ratio"
      ]
    }
  }
}
```
in the wild

embodiments

the full element showcase
embodiment · marginal-signal-ledger
DESIGN.md

at a glance

Palette

Typography

headline-lgInter · 28px · 700

The quick brown fox jumps

headline-mdInter · 23px · 600

The quick brown fox jumps

body-mdInter · 16px · 400

The quick brown fox jumps

label-mdIBM Plex Mono · 12px · 600

The quick brown fox jumps

Components

New
Card title

Components rendered with this language’s tokens — colors, type, and rounded corners as specified.

Spacing

  • base8px
  • xs4px
  • sm8px
  • md12px
  • lg16px
  • xl20px
  • 2xl24px
  • 3xl32px
  • 4xl48px
  • step-864px

Shape

full9999px
lg16px
md10px
none0px
sm4px
shadcn/ui

implementation kit

needs agent-authored kitcompatibility fallback
shadcn compatibility only
The generated theme variables are available, but the polished shadcn component recipes and shots have not been authored by the Katagami agent yet.
fallbackprimitives render
Compatibility proof
Local shadcn-style primitives accept the generated theme variables.
primaryaccentsurfacemutedwarningerror
table rhythm
buttonok
cardok
inputok
recommendedcompatibility fallback

DESIGN.md with shadcn

Copy this when the target app uses shadcn/ui. It packages the Katagami DESIGN.md context with the install list, theme variables, component recipes, preview-shot contract, and starter TSX in one Markdown companion.

advanced implementation filesoptional machine-readable theme, CSS, TSX starter, recipes, and preview contract
shadcn add
npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table
theme css
:root {
  --background: #F6F1E8;
  --foreground: #20211D;
  --card: #FFFDF8;
  --card-foreground: #20211D;
  --popover: #FFFDF8;
  --popover-foreground: #20211D;
  --primary: #275D66;
  --primary-foreground: #ffffff;
  --secondary: #8A5A30;
  --secondary-foreground: #ffffff;
  --muted: #68716B;
  --muted-foreground: #20211D;
  --accent: #D78A2F;
  --accent-foreground: #ffffff;
  --destructive: #B33A3A;
  --border: #D8CDBC;
  --input: #D8CDBC;
  --ring: #D78A2F;
  --chart-1: #275D66;
  --chart-2: #8A5A30;
  --chart-3: #D78A2F;
  --chart-4: #2F7A55;
  --chart-5: #B8791D;
  --sidebar: #FFFDF8;
  --sidebar-foreground: #20211D;
  --sidebar-primary: #275D66;
  --sidebar-primary-foreground: #ffffff;
  --sidebar-accent: #2E5D86;
  --sidebar-accent-foreground: #ffffff;
  --sidebar-border: #D8CDBC;
  --sidebar-ring: #D78A2F;
  --radius: 10px;
}

.dark {
  --background: #0f1115;
  --foreground: #f8fafc;
  --card: #181b22;
  --card-foreground: #f8fafc;
  --popover: #181b22;
  --popover-foreground: #f8fafc;
  --primary: #275D66;
  --primary-foreground: #ffffff;
  --secondary: #252a33;
  --secondary-foreground: #f8fafc;
  --muted: #252a33;
  --muted-foreground: #a1a1aa;
  --accent: #D78A2F;
  --accent-foreground: #ffffff;
  --destructive: #B33A3A;
  --border: #303642;
  --input: #303642;
  --ring: #D78A2F;
  --chart-1: #275D66;
  --chart-2: #8A5A30;
  --chart-3: #D78A2F;
  --chart-4: #2F7A55;
  --chart-5: #B8791D;
  --sidebar: #181b22;
  --sidebar-foreground: #f8fafc;
  --sidebar-primary: #275D66;
  --sidebar-primary-foreground: #ffffff;
  --sidebar-accent: #D78A2F;
  --sidebar-accent-foreground: #ffffff;
  --sidebar-border: #303642;
  --sidebar-ring: #D78A2F;
  --radius: 10px;
}
tsx starter
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
  Card,
  CardContent,
  CardDescription,
  CardFooter,
  CardHeader,
  CardTitle,
} from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";

export function MarginalSignalLedgerShadcnKit() {
  return (
    <section className="grid gap-4 rounded-[var(--radius)] border bg-background p-4 text-foreground">
      <div className="flex items-start justify-between gap-4">
        <div>
          <Badge variant="outline">shadcn/ui</Badge>
          <h2 className="mt-3 text-2xl font-semibold tracking-tight">Marginal Signal Ledger</h2>
          <p className="mt-1 max-w-xl text-sm text-muted-foreground">
            Use the Katagami registry theme, then compose these shadcn primitives
            with the language-specific component recipes.
          </p>
        </div>
        <Button>Apply theme</Button>
      </div>

      <Tabs defaultValue="components">
        <TabsList>
          <TabsTrigger value="components">Components</TabsTrigger>
          <TabsTrigger value="states">States</TabsTrigger>
          <TabsTrigger value="export">Export</TabsTrigger>
        </TabsList>
      </Tabs>

      <Card>
        <CardHeader>
          <CardTitle>Component recipe</CardTitle>
          <CardDescription>
            Replace this starter content with the agent-authored product scene
            from components.md and preview-shots.json.
          </CardDescription>
        </CardHeader>
        <CardContent className="grid gap-3 sm:grid-cols-[1fr_auto]">
          <Input defaultValue="Tokenized shadcn surface" aria-label="Recipe name" />
          <Button variant="secondary">Preview state</Button>
        </CardContent>
        <CardFooter className="justify-between">
          <Badge>Ready</Badge>
          <Button variant="outline">Copy recipe</Button>
        </CardFooter>
      </Card>
    </section>
  );
}
theme JSONcompatibility fallback
{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "marginal-signal-ledger",
  "type": "registry:theme",
  "title": "Marginal Signal Ledger shadcn Theme",
  "cssVars": {
    "theme": {},
    "light": {
      "background": "#F6F1E8",
      "foreground": "#20211D",
      "card": "#FFFDF8",
      "card-foreground": "#20211D",
      "popover": "#FFFDF8",
      "popover-foreground": "#20211D",
      "primary": "#275D66",
      "primary-foreground": "#ffffff",
      "secondary": "#8A5A30",
      "secondary-foreground": "#ffffff",
      "muted": "#68716B",
      "muted-foreground": "#20211D",
      "accent": "#D78A2F",
      "accent-foreground": "#ffffff",
      "destructive": "#B33A3A",
      "border": "#D8CDBC",
      "input": "#D8CDBC",
      "ring": "#D78A2F",
      "chart-1": "#275D66",
      "chart-2": "#8A5A30",
      "chart-3": "#D78A2F",
      "chart-4": "#2F7A55",
      "chart-5": "#B8791D",
      "sidebar": "#FFFDF8",
      "sidebar-foreground": "#20211D",
      "sidebar-primary": "#275D66",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#2E5D86",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#D8CDBC",
      "sidebar-ring": "#D78A2F",
      "radius": "10px"
    },
    "dark": {
      "background": "#0f1115",
      "foreground": "#f8fafc",
      "card": "#181b22",
      "card-foreground": "#f8fafc",
      "popover": "#181b22",
      "popover-foreground": "#f8fafc",
      "primary": "#275D66",
      "primary-foreground": "#ffffff",
      "secondary": "#252a33",
      "secondary-foreground": "#f8fafc",
      "muted": "#252a33",
      "muted-foreground": "#a1a1aa",
      "accent": "#D78A2F",
      "accent-foreground": "#ffffff",
      "destructive": "#B33A3A",
      "border": "#303642",
      "input": "#303642",
      "ring": "#D78A2F",
      "chart-1": "#275D66",
      "chart-2": "#8A5A30",
      "chart-3": "#D78A2F",
      "chart-4": "#2F7A55",
      "chart-5": "#B8791D",
      "sidebar": "#181b22",
      "sidebar-foreground": "#f8fafc",
      "sidebar-primary": "#275D66",
      "sidebar-primary-foreground": "#ffffff",
      "sidebar-accent": "#D78A2F",
      "sidebar-accent-foreground": "#ffffff",
      "sidebar-border": "#303642",
      "sidebar-ring": "#D78A2F",
      "radius": "10px"
    }
  },
  "meta": {
    "source": "katagami",
    "languageId": "en-019edc14-8a13-79f0-853f-0b88d9841e44",
    "slug": "marginal-signal-ledger",
    "componentManifest": [
      "button",
      "card",
      "input",
      "textarea",
      "select",
      "dialog",
      "sheet",
      "tabs",
      "badge",
      "separator",
      "checkbox",
      "switch",
      "slider",
      "tooltip",
      "dropdown-menu",
      "table"
    ],
    "installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
    "nativeTokenNames": {
      "borders": [
        "accent_width",
        "character",
        "default_width",
        "style"
      ],
      "colors": [
        "accent",
        "background",
        "border",
        "error",
        "info",
        "ink_soft",
        "muted",
        "primary",
        "saffron_soft",
        "secondary",
        "success",
        "surface",
        "surface_alt",
        "teal_soft",
        "text",
        "warning"
      ],
      "motion": [
        "duration",
        "easing",
        "philosophy"
      ],
      "radii": [
        "full",
        "lg",
        "md",
        "none",
        "sm"
      ],
      "shadows": [
        "lg",
        "md",
        "sm"
      ],
      "spacing": [
        "base",
        "scale"
      ],
      "surfaces": [
        "bg_pattern",
        "card_style",
        "treatment"
      ],
      "typography": [
        "base_size",
        "body_font",
        "google_fonts_url",
        "heading_font",
        "letter_spacing",
        "line_height",
        "mono_font",
        "scale_ratio"
      ]
    }
  }
}
component recipescompatibility fallback
# Marginal Signal Ledger shadcn/ui Components

Artifact: `component-recipes-v1`
Author: `katagami-ui-projection`
Language ID: `en-019edc14-8a13-79f0-853f-0b88d9841e44`
Slug: `marginal-signal-ledger`

## Intent

Aya Not Dashboard Data Surfaces is a design language for exploratory knowledge work that avoids dashboard clichés by composing evidence, narrative annotations, and operating state into calm, inspectable surfaces.

## Required primitives

- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table

Install with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.

## Token cues

Colors:

{
  "accent": "#D78A2F",
  "background": "#F6F1E8",
  "border": "#D8CDBC",
  "error": "#B33A3A",
  "info": "#2E5D86",
  "ink_soft": "#EEF0EC",
  "muted": "#68716B",
  "primary": "#275D66",
  "saffron_soft": "#F7E3BE",
  "secondary": "#8A5A30",
  "success": "#2F7A55",
  "surface": "#FFFDF8",
  "surface_alt": "#ECE5D8",
  "teal_soft": "#DCEBE8",
  "text": "#20211D",
  "warning": "#B8791D"
}

Typography:

{
  "base_size": "16px",
  "body_font": "Inter",
  "google_fonts_url": "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@500;600&display=swap",
  "heading_font": "Inter",
  "letter_spacing": "-0.01em",
  "line_height": 1.55,
  "mono_font": "IBM Plex Mono",
  "scale_ratio": 1.2
}

## Visual character to preserve

- warm paper background with ruled data-grid texture and crisp ink-like text
- layered ivory surfaces connected by thin rails, tabs, and provenance strips
- saffron and teal accents used sparingly for active hypotheses, confidence, and review state
- compact metadata pills and monospaced labels that make source status visible

## ShadSync visual profile

{
  "family": "paper-collage",
  "material": "paper",
  "contour": "pebble",
  "border": "solid",
  "underlay": true,
  "grain": true,
  "stickerBadges": true,
  "motion": "still",
  "density": "dense",
  "accents": [
    "primary",
    "accent",
    "secondary",
    "muted"
  ]
}

## Signature component recipes

### Button
Use `Button` for primary, secondary, outline, and ghost actions. Primary actions must expose the language's strongest contrast pair, while secondary and ghost actions should preserve the surface treatment instead of falling back to default neutral SaaS styling.

### Card
Use `Card`, `CardHeader`, `CardContent`, `CardFooter`, and `CardAction` as the main composition frame. Cards should demonstrate the language's surface, border, hierarchy, and density rules rather than appearing as generic rounded rectangles.

### Input and Textarea
Use `Input` and `Textarea` with visible focus rings, field labels, validation states, and the language's rhythm. Forms should show real product content, not placeholder-only controls.

### Select, Tabs, and Table
Use `Select`, `Tabs`, and `Table` to prove navigation, filtering, and dense data states. The table should show row rhythm, separators, hover/focus states, and an empty or status state when the language calls for it.

### Dialog and Sheet
Use `Dialog` for centered decisions and `Sheet` for contextual editing. Both should inherit the language's spacing, border, overlay, and motion rules.

## Preview shots

- `application-shell`: dashboard or workspace shell with navigation, cards, forms, and state badges.
- `detail-editor`: focused editing flow using input, textarea, select, switch/checkbox, dialog or sheet, and action buttons.
- `data-operations`: table-heavy operational view with tabs, dropdown menu affordances, badges, and destructive/empty states.
- Each preview shot must include a renderable `scene` payload with concrete headline, description, actions, and rows/fields/stats for the UI preview.

## Implementation contract

- Start from local `ui/src/components/ui` shadcn-style primitives; do not create a second component system.
- Apply `/katagami/shadcn/marginal-signal-ledger/registry-theme.json` variables, then use these recipes for composition and state design.
- Preserve Katagami token names as source metadata; shadcn semantic names are only the export surface.
- Do: show source state and review confidence; compose surfaces as inquiry tools rather than KPI panels; use restrained saffron and teal accents for active state; keep mobile order readable
- Do not: ship placeholder charts; hide provenance; use neon gradients; depend on browser default controls

## Copy-paste component example

This generated starter proves the import shape. Production Katagami agents should replace it with a language-specific product composition.

```tsx
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
  Card,
  CardContent,
  CardDescription,
  CardFooter,
  CardHeader,
  CardTitle,
} from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";

export function MarginalSignalLedgerShadcnKit() {
  return (
    <section className="grid gap-4 rounded-[var(--radius)] border bg-background p-4 text-foreground">
      <div className="flex items-start justify-between gap-4">
        <div>
          <Badge variant="outline">shadcn/ui</Badge>
          <h2 className="mt-3 text-2xl font-semibold tracking-tight">Marginal Signal Ledger</h2>
          <p className="mt-1 max-w-xl text-sm text-muted-foreground">
            Use the Katagami registry theme, then compose these shadcn primitives
            with the language-specific component recipes.
          </p>
        </div>
        <Button>Apply theme</Button>
      </div>

      <Tabs defaultValue="components">
        <TabsList>
          <TabsTrigger value="components">Components</TabsTrigger>
          <TabsTrigger value="states">States</TabsTrigger>
          <TabsTrigger value="export">Export</TabsTrigger>
        </TabsList>
      </Tabs>

      <Card>
        <CardHeader>
          <CardTitle>Component recipe</CardTitle>
          <CardDescription>
            Replace this starter content with the agent-authored product scene
            from components.md and preview-shots.json.
          </CardDescription>
        </CardHeader>
        <CardContent className="grid gap-3 sm:grid-cols-[1fr_auto]">
          <Input defaultValue="Tokenized shadcn surface" aria-label="Recipe name" />
          <Button variant="secondary">Preview state</Button>
        </CardContent>
        <CardFooter className="justify-between">
          <Badge>Ready</Badge>
          <Button variant="outline">Copy recipe</Button>
        </CardFooter>
      </Card>
    </section>
  );
}
```

## Layout notes

{
  "breakpoints": {
    "lg": 1024,
    "md": 768,
    "sm": 640,
    "xl": 1280
  },
  "grid": "12 column desktop canvas with 280px inquiry rail, 1fr evidence desk, and responsive single-column mobile stack",
  "whitespace": "8px base spacing with 20px card rhythm and 32px section rhythm"
}
preview shotscompatibility fallback
{
  "artifact": "katagami:shadcn-preview-shots",
  "version": "preview-shots-v1",
  "generator": "katagami-ui-compatibility-projection",
  "generatedBy": "katagami-ui-projection",
  "requiresVisualProfile": true,
  "schema": "katagami:shadcn-preview-shots/renderable-v1",
  "renderable": true,
  "language": {
    "id": "en-019edc14-8a13-79f0-853f-0b88d9841e44",
    "name": "Marginal Signal Ledger",
    "slug": "marginal-signal-ledger"
  },
  "installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
  "primitives": [
    "button",
    "card",
    "input",
    "textarea",
    "select",
    "dialog",
    "sheet",
    "tabs",
    "badge",
    "separator",
    "checkbox",
    "switch",
    "slider",
    "tooltip",
    "dropdown-menu",
    "table"
  ],
  "identityNotes": [
    "warm paper background with ruled data-grid texture and crisp ink-like text",
    "layered ivory surfaces connected by thin rails, tabs, and provenance strips",
    "saffron and teal accents used sparingly for active hypotheses, confidence, and review state",
    "compact metadata pills and monospaced labels that make source status visible"
  ],
  "visualProfile": {
    "family": "paper-collage",
    "material": "paper",
    "contour": "pebble",
    "border": "solid",
    "underlay": true,
    "grain": true,
    "stickerBadges": true,
    "motion": "still",
    "density": "dense",
    "accents": [
      "primary",
      "accent",
      "secondary",
      "muted"
    ]
  },
  "shots": [
    {
      "id": "application-shell",
      "title": "Application shell",
      "viewport": "desktop",
      "primitives": [
        "button",
        "card",
        "input",
        "select",
        "tabs",
        "badge",
        "separator",
        "table"
      ],
      "composition": "A real product workspace with navigation, summary cards, filtering controls, and one dense content region.",
      "mustShow": [
        "primary and secondary actions",
        "card hierarchy",
        "filterable state",
        "table or list density"
      ],
      "avoid": [
        "component inventory walls",
        "placeholder-only content",
        "generic rounded SaaS chrome"
      ],
      "scene": {
        "eyebrow": "workspace spread",
        "headline": "Marginal Signal Ledger launch room",
        "description": "A product team workspace where navigation, filters, metrics, and dense rows carry the language's visible structure.",
        "primaryAction": "Apply theme",
        "secondaryAction": "Review states",
        "stats": [
          {
            "label": "components",
            "value": "16",
            "tone": "accent"
          },
          {
            "label": "states",
            "value": "ready"
          },
          {
            "label": "density",
            "value": "balanced",
            "tone": "warning"
          }
        ],
        "rows": [
          {
            "label": "Primary flow",
            "value": "mapped",
            "status": "active"
          },
          {
            "label": "Token coverage",
            "value": "semantic",
            "status": "synced"
          },
          {
            "label": "Responsive proof",
            "value": "queued",
            "status": "review"
          }
        ],
        "statuses": [
          "Active",
          "Synced",
          "Draft"
        ]
      }
    },
    {
      "id": "detail-editor",
      "title": "Detail editor",
      "viewport": "tablet",
      "primitives": [
        "button",
        "card",
        "input",
        "textarea",
        "select",
        "checkbox",
        "switch",
        "slider",
        "dialog",
        "sheet"
      ],
      "composition": "A focused editing flow with form fields, validation, confirmation, and a contextual side panel.",
      "mustShow": [
        "focus ring",
        "error or destructive state",
        "dialog or sheet treatment",
        "written guidance content"
      ],
      "avoid": [
        "unstyled browser controls",
        "floating cards inside cards",
        "missing labels"
      ],
      "scene": {
        "eyebrow": "editing flow",
        "headline": "Language recipe editor",
        "description": "A focused form proving labels, validation, toggles, panel rhythm, and action hierarchy.",
        "primaryAction": "Save recipe",
        "secondaryAction": "Open sheet",
        "fields": [
          {
            "label": "Component family",
            "value": "Narrative cards"
          },
          {
            "label": "State treatment",
            "value": "Visible focus + validation"
          },
          {
            "label": "Motion",
            "value": "Small lift, no opacity-only fade"
          }
        ],
        "statuses": [
          "Focus",
          "Invalid",
          "Confirmed"
        ]
      }
    },
    {
      "id": "data-operations",
      "title": "Data operations",
      "viewport": "mobile",
      "primitives": [
        "button",
        "tabs",
        "badge",
        "dropdown-menu",
        "table",
        "tooltip",
        "separator"
      ],
      "composition": "A compact operational view proving row rhythm, stacked actions, menu states, badges, and empty/destructive states.",
      "mustShow": [
        "responsive reflow",
        "dense row styling",
        "menu affordance",
        "status badge system"
      ],
      "avoid": [
        "desktop-only tables",
        "text overflow",
        "default shadcn spacing without Katagami character"
      ],
      "scene": {
        "eyebrow": "operations",
        "headline": "Compact review queue",
        "description": "A narrow viewport scene with rows, menus, tooltips, badges, and destructive affordances.",
        "primaryAction": "Resolve",
        "secondaryAction": "Filter",
        "rows": [
          {
            "label": "Button hierarchy",
            "value": "approved",
            "status": "ok"
          },
          {
            "label": "Table rhythm",
            "value": "needs pass",
            "status": "watch"
          },
          {
            "label": "Empty state",
            "value": "designed",
            "status": "done"
          }
        ],
        "statuses": [
          "Queued",
          "Blocked",
          "Done"
        ]
      }
    }
  ],
  "componentRecipes": [
    {
      "primitive": "button",
      "intent": "Prove action hierarchy, focus, disabled, and destructive states."
    },
    {
      "primitive": "card",
      "intent": "Carry the language surface, border, elevation, and density rules."
    },
    {
      "primitive": "input",
      "intent": "Show labels, focus rings, validation, and spacing rhythm."
    },
    {
      "primitive": "textarea",
      "intent": "Show longer guidance, validation copy, and writing density."
    },
    {
      "primitive": "select",
      "intent": "Show filtering, selection contrast, and menu trigger styling."
    },
    {
      "primitive": "dialog",
      "intent": "Show centered decision states and overlay treatment."
    },
    {
      "primitive": "sheet",
      "intent": "Show contextual side panels and responsive editing."
    },
    {
      "primitive": "tabs",
      "intent": "Show navigational structure and active/inactive contrast."
    },
    {
      "primitive": "badge",
      "intent": "Show compact status vocabulary and semantic colors."
    },
    {
      "primitive": "separator",
      "intent": "Show section rhythm without generic gray dividers."
    },
    {
      "primitive": "checkbox",
      "intent": "Show binary selection with visible focus and checked states."
    },
    {
      "primitive": "switch",
      "intent": "Show settings toggles and on/off contrast."
    },
    {
      "primitive": "slider",
      "intent": "Show numeric adjustment with track/thumb styling."
    },
    {
      "primitive": "tooltip",
      "intent": "Show concise explanation styling above compact controls."
    },
    {
      "primitive": "dropdown-menu",
      "intent": "Show action menus, destructive items, and grouped choices."
    },
    {
      "primitive": "table",
      "intent": "Show dense operational data, separators, row states, and responsive behavior."
    }
  ],
  "qualityRules": {
    "do": [
      "show source state and review confidence",
      "compose surfaces as inquiry tools rather than KPI panels",
      "use restrained saffron and teal accents for active state",
      "keep mobile order readable"
    ],
    "dont": [
      "ship placeholder charts",
      "hide provenance",
      "use neon gradients",
      "depend on browser default controls"
    ]
  }
}
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