# SectionHeader

A standalone content heading row with optional leading and trailing slots, sized small, default, or large.

Version: 0.2.0-preview.1 (preview)
Content digest: 70ac710f4d22dce040e7ac593379ba8aca9dcb59a0b9c0f839819cae0e2bb721
Contract kind: source-derived
Source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx

## Guidance

{
  "summary": "A standalone content heading row with optional leading and trailing slots, sized small, default, or large.",
  "guidance": [
    {
      "heading": "Overview",
      "body": "A titled heading row above a body section, with optional `leading` and `trailing` slots for an icon\nor an action."
    },
    {
      "heading": "When to use",
      "body": "Reach for `SectionHeader` to label a standalone group on a page or screen — \"Scan history\", \"Your\ninfo\" — especially when the heading carries a trailing control (a `Dropdown` filter, an \"Edit\"\naction, a value). It bundles the title, optional description, and slots so you don't hand-assemble\ntype and spacing.\n\n-   Just a run of styled text with no section role? Use `Text` directly.\n-   A label _inside_ a `List` that groups the rows under it? Use `List.Section`, not this.\n-   Only a horizontal rule between blocks, no title? Use `Divider`.\n-   Route-level chrome (back button, title bar)? Use `Screen.Header`."
    }
  ],
  "usage": [],
  "examples": [],
  "source": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.mdx",
  "status": "local-preview",
  "note": "Guidance is read from local documentation, originally imported from the frozen source. Platform assertions in guidance are not parity verification."
}

## Contract and public API

```json
{
  "props": [
    {
      "name": "size",
      "type": "SectionHeaderSize | undefined",
      "declared_type": "SectionHeaderSize",
      "required": false,
      "description": "Controls block padding and slot alignment, not the title's type size. Defaults to `default`.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 32
      },
      "values": [
        "default",
        "large",
        "small"
      ],
      "values_complete": true,
      "default": "'default'",
      "default_kind": "source-expression"
    },
    {
      "name": "title",
      "type": "string",
      "declared_type": "string",
      "required": true,
      "description": "Section label. Always renders as a level-3 heading, whatever visual scale `size` sets.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 34
      }
    },
    {
      "name": "contrast",
      "type": "SectionHeaderContrast | undefined",
      "declared_type": "SectionHeaderContrast",
      "required": false,
      "description": "Title contrast for the surface. Defaults to `default`; use `inverse` on a tinted or inverted backdrop.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 36
      },
      "values": [
        "default",
        "inverse"
      ],
      "values_complete": true,
      "default": "'default'",
      "default_kind": "source-expression"
    },
    {
      "name": "description",
      "type": "React.ReactNode",
      "declared_type": "React.ReactNode",
      "required": false,
      "description": "Secondary line shown beneath the title (used by the large size).",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 38
      }
    },
    {
      "name": "leading",
      "type": "React.ReactNode",
      "declared_type": "React.ReactNode",
      "required": false,
      "description": "Leading content (e.g. an icon) shown before the title block.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 40
      }
    },
    {
      "name": "trailing",
      "type": "React.ReactNode",
      "declared_type": "React.ReactNode",
      "required": false,
      "description": "Trailing control or status — dropdown, action text, value, or icon.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 42
      }
    },
    {
      "name": "trailingAlign",
      "type": "\"center\" | \"top\" | \"baseline\" | undefined",
      "declared_type": "'center' | 'top' | 'baseline'",
      "required": false,
      "description": "Cross-axis alignment of the trailing slot. Defaults to `center`; `top` pins it to the title\nline above a description, and `baseline` sits text trailing content on the title's baseline.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 47
      },
      "values": [
        "baseline",
        "center",
        "top"
      ],
      "values_complete": true,
      "default": "'center'",
      "default_kind": "source-expression"
    },
    {
      "name": "className",
      "type": "string | undefined",
      "declared_type": "string",
      "required": false,
      "description": "",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 48
      }
    },
    {
      "name": "style",
      "type": "React.CSSProperties | undefined",
      "declared_type": "React.CSSProperties",
      "required": false,
      "description": "",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 49
      }
    },
    {
      "name": "testId",
      "type": "string | undefined",
      "declared_type": "string",
      "required": false,
      "description": "Selector for the header row; `leading` and `trailing` content carry their own.",
      "source": {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 51
      }
    },
    {
      "name": "padding",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Padding on all four sides.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 10
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    },
    {
      "name": "paddingX",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Horizontal padding (left + right). Overrides `padding` on the X axis.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 12
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    },
    {
      "name": "paddingY",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Vertical padding (top + bottom). Overrides `padding` on the Y axis.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 14
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    },
    {
      "name": "paddingTop",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Top padding. Overrides `paddingY` and `padding`.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 16
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    },
    {
      "name": "paddingRight",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Right padding. Overrides `paddingX` and `padding`.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 18
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    },
    {
      "name": "paddingBottom",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Bottom padding. Overrides `paddingY` and `padding`.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 20
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    },
    {
      "name": "paddingLeft",
      "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
      "declared_type": "CdsSpace",
      "required": false,
      "description": "Left padding. Overrides `paddingX` and `padding`.",
      "source": {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 22
      },
      "values": [
        0,
        12,
        120,
        16,
        20,
        24,
        240,
        32,
        4,
        40,
        48,
        56,
        64,
        72,
        8,
        80,
        96
      ],
      "values_complete": true
    }
  ],
  "prop_shapes": {},
  "api": {
    "method": "typescript-type-checker",
    "typescript_version": "5.9.3",
    "public_export": "SectionHeader",
    "public_path": "SectionHeader",
    "import_path": "@cloakedinc/design-system",
    "root_kind": "component",
    "entrypoints": [
      {
        "name": "SectionHeader",
        "signature": 1,
        "visibility": "public",
        "source": {
          "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
          "line": 58
        },
        "props_type": "SectionHeaderProps",
        "props": [
          {
            "name": "size",
            "type": "SectionHeaderSize | undefined",
            "declared_type": "SectionHeaderSize",
            "required": false,
            "description": "Controls block padding and slot alignment, not the title's type size. Defaults to `default`.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 32
            },
            "values": [
              "default",
              "large",
              "small"
            ],
            "values_complete": true,
            "default": "'default'",
            "default_kind": "source-expression"
          },
          {
            "name": "title",
            "type": "string",
            "declared_type": "string",
            "required": true,
            "description": "Section label. Always renders as a level-3 heading, whatever visual scale `size` sets.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 34
            }
          },
          {
            "name": "contrast",
            "type": "SectionHeaderContrast | undefined",
            "declared_type": "SectionHeaderContrast",
            "required": false,
            "description": "Title contrast for the surface. Defaults to `default`; use `inverse` on a tinted or inverted backdrop.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 36
            },
            "values": [
              "default",
              "inverse"
            ],
            "values_complete": true,
            "default": "'default'",
            "default_kind": "source-expression"
          },
          {
            "name": "description",
            "type": "React.ReactNode",
            "declared_type": "React.ReactNode",
            "required": false,
            "description": "Secondary line shown beneath the title (used by the large size).",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 38
            }
          },
          {
            "name": "leading",
            "type": "React.ReactNode",
            "declared_type": "React.ReactNode",
            "required": false,
            "description": "Leading content (e.g. an icon) shown before the title block.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 40
            }
          },
          {
            "name": "trailing",
            "type": "React.ReactNode",
            "declared_type": "React.ReactNode",
            "required": false,
            "description": "Trailing control or status — dropdown, action text, value, or icon.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 42
            }
          },
          {
            "name": "trailingAlign",
            "type": "\"center\" | \"top\" | \"baseline\" | undefined",
            "declared_type": "'center' | 'top' | 'baseline'",
            "required": false,
            "description": "Cross-axis alignment of the trailing slot. Defaults to `center`; `top` pins it to the title\nline above a description, and `baseline` sits text trailing content on the title's baseline.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 47
            },
            "values": [
              "baseline",
              "center",
              "top"
            ],
            "values_complete": true,
            "default": "'center'",
            "default_kind": "source-expression"
          },
          {
            "name": "className",
            "type": "string | undefined",
            "declared_type": "string",
            "required": false,
            "description": "",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 48
            }
          },
          {
            "name": "style",
            "type": "React.CSSProperties | undefined",
            "declared_type": "React.CSSProperties",
            "required": false,
            "description": "",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 49
            }
          },
          {
            "name": "testId",
            "type": "string | undefined",
            "declared_type": "string",
            "required": false,
            "description": "Selector for the header row; `leading` and `trailing` content carry their own.",
            "source": {
              "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
              "line": 51
            }
          },
          {
            "name": "padding",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Padding on all four sides.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 10
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          },
          {
            "name": "paddingX",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Horizontal padding (left + right). Overrides `padding` on the X axis.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 12
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          },
          {
            "name": "paddingY",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Vertical padding (top + bottom). Overrides `padding` on the Y axis.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 14
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          },
          {
            "name": "paddingTop",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Top padding. Overrides `paddingY` and `padding`.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 16
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          },
          {
            "name": "paddingRight",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Right padding. Overrides `paddingX` and `padding`.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 18
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          },
          {
            "name": "paddingBottom",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Bottom padding. Overrides `paddingY` and `padding`.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 20
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          },
          {
            "name": "paddingLeft",
            "type": "0 | 4 | 8 | 12 | 16 | 20 | 24 | 32 | 40 | 48 | 56 | 64 | 72 | 80 | 96 | 120 | 240 | undefined",
            "declared_type": "CdsSpace",
            "required": false,
            "description": "Left padding. Overrides `paddingX` and `padding`.",
            "source": {
              "path": "packages/design-system/src/components/layout/resolvePadding.ts",
              "line": 22
            },
            "values": [
              0,
              12,
              120,
              16,
              20,
              24,
              240,
              32,
              4,
              40,
              48,
              56,
              64,
              72,
              8,
              80,
              96
            ],
            "values_complete": true
          }
        ],
        "branches": [],
        "constraints": [],
        "extraction_status": "extracted"
      }
    ],
    "type_sources": [
      {
        "path": "packages/design-system/src/components/layout/resolvePadding.ts",
        "line": 8,
        "name": "PaddingProps",
        "code": "export interface PaddingProps {\n    /** Padding on all four sides. */\n    padding?: CdsSpace;\n    /** Horizontal padding (left + right). Overrides `padding` on the X axis. */\n    paddingX?: CdsSpace;\n    /** Vertical padding (top + bottom). Overrides `padding` on the Y axis. */\n    paddingY?: CdsSpace;\n    /** Top padding. Overrides `paddingY` and `padding`. */\n    paddingTop?: CdsSpace;\n    /** Right padding. Overrides `paddingX` and `padding`. */\n    paddingRight?: CdsSpace;\n    /** Bottom padding. Overrides `paddingY` and `padding`. */\n    paddingBottom?: CdsSpace;\n    /** Left padding. Overrides `paddingX` and `padding`. */\n    paddingLeft?: CdsSpace;\n}"
      },
      {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 8,
        "name": "SectionHeaderSize",
        "code": "export type SectionHeaderSize = 'small' | 'default' | 'large';"
      },
      {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 10,
        "name": "SectionHeaderContrast",
        "code": "export type SectionHeaderContrast = 'default' | 'inverse';"
      },
      {
        "path": "packages/design-system/src/components/organization/SectionHeader/SectionHeader.tsx",
        "line": 30,
        "name": "SectionHeaderProps",
        "code": "export interface SectionHeaderProps extends PaddingProps {\n    /** Controls block padding and slot alignment, not the title's type size. Defaults to `default`. */\n    size?: SectionHeaderSize;\n    /** Section label. Always renders as a level-3 heading, whatever visual scale `size` sets. */\n    title: string;\n    /** Title contrast for the surface. Defaults to `default`; use `inverse` on a tinted or inverted backdrop. */\n    contrast?: SectionHeaderContrast;\n    /** Secondary line shown beneath the title (used by the large size). */\n    description?: React.ReactNode;\n    /** Leading content (e.g. an icon) shown before the title block. */\n    leading?: React.ReactNode;\n    /** Trailing control or status — dropdown, action text, value, or icon. */\n    trailing?: React.ReactNode;\n    /**\n     * Cross-axis alignment of the trailing slot. Defaults to `center`; `top` pins it to the title\n     * line above a description, and `baseline` sits text trailing content on the title's baseline.\n     */\n    trailingAlign?: 'center' | 'top' | 'baseline';\n    className?: string;\n    style?: React.CSSProperties;\n    /** Selector for the header row; `leading` and `trailing` content carry their own. */\n    testId?: string;\n}"
      },
      {
        "path": "packages/design-system/src/tokens/CdsSpace.ts",
        "line": 8,
        "name": "PUI_SPACES",
        "code": "PUI_SPACES = [0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 56, 64, 72, 80, 96, 120, 240] as const"
      },
      {
        "path": "packages/design-system/src/tokens/CdsSpace.ts",
        "line": 13,
        "name": "CdsSpace",
        "code": "export type CdsSpace = (typeof PUI_SPACES)[number];"
      }
    ],
    "defaults_policy": "Only explicit destructured parameter initializers are extracted. Other runtime defaults remain in implementation source."
  },
  "spec": {
    "$schema": "../../../specs/component-spec.schema.json",
    "identity": {
      "name": "SectionHeader",
      "status": "preview",
      "version": "1.3.0",
      "summary": "A standalone content heading row with optional leading and trailing slots, sized small, default, or large."
    },
    "parts": [
      {
        "id": "root",
        "label": "Root",
        "description": "Heading row aligning leading, body, and trailing slots.",
        "required": true
      },
      {
        "id": "leading",
        "label": "Leading",
        "description": "Optional leading visual before the title."
      },
      {
        "id": "body",
        "label": "Body",
        "description": "Title and optional description column."
      },
      {
        "id": "title",
        "label": "Title",
        "description": "Visible section title."
      },
      {
        "id": "description",
        "label": "Description",
        "description": "Secondary line, used mainly by the large size."
      },
      {
        "id": "trailing",
        "label": "Trailing",
        "description": "Optional trailing control or status. Renders as a row-level slot, or on the title's line when trailingAlign is baseline."
      }
    ],
    "allowedDesignChoices": {
      "variants": {
        "row": {
          "label": "Row",
          "description": "The single heading-row treatment."
        }
      },
      "sizes": {
        "small": {
          "label": "Small",
          "description": "Body-scale title for tight groups."
        },
        "default": {
          "label": "Default",
          "description": "The standard heading."
        },
        "large": {
          "label": "Large",
          "description": "Larger title paired with a description."
        }
      }
    },
    "variants": [
      {
        "id": "row",
        "label": "Row",
        "description": "Content heading row with slots.",
        "platforms": [
          "ios",
          "android",
          "web"
        ]
      }
    ],
    "sizes": [
      {
        "id": "small",
        "label": "Small",
        "description": "Body-scale title with tighter block padding."
      },
      {
        "id": "default",
        "label": "Default",
        "description": "The standard 20-unit heading scale."
      },
      {
        "id": "large",
        "label": "Large",
        "description": "Heading paired with a description line."
      }
    ],
    "measurements": [
      {
        "id": "content-gap",
        "label": "Slot gap",
        "kind": "exact",
        "token": "--cds-space-12",
        "value": 12,
        "unit": "px",
        "appliesTo": [
          "root"
        ]
      },
      {
        "id": "default-top-inset",
        "label": "Default top inset",
        "kind": "exact",
        "token": "--cds-space-48",
        "value": 48,
        "unit": "px",
        "appliesTo": [
          "root"
        ]
      },
      {
        "id": "inline-inset",
        "label": "Horizontal inset (default)",
        "kind": "exact",
        "token": "--cds-space-20",
        "value": 20,
        "unit": "px",
        "appliesTo": [
          "root"
        ],
        "notes": "Exact as shipped, but the only measurement here a caller can override: it comes from PaddingProps, so a container that already owns the page gutter passes paddingX={0}."
      }
    ],
    "layout": {
      "alignment": "Leading, body, and trailing align on the row center; the large size aligns to the top. The trailing slot can pin to the title line independently via trailingAlign='top'. trailingAlign='baseline' moves it onto the title's own line, so the two share a baseline.",
      "flow": "A single row: optional leading, a flexible title/description body, and an optional trailing slot.",
      "notes": [
        "Use List.Section for labels inside a List and Screen.Header for route chrome.",
        "The horizontal inset is a default, not a fixed value: it comes from PaddingProps so a container that already owns the page gutter can pass paddingX={0} rather than cancelling it with an inline style. The block axis is size-derived and stays owned by the component."
      ]
    },
    "typographyAndColor": {
      "typography": [
        {
          "label": "Title",
          "description": "The default and large sizes use the h3 ramp; small uses the body ramp.",
          "token": "--cds-type-h3-size"
        },
        {
          "label": "Description",
          "description": "The description uses the body ramp.",
          "token": "--cds-type-body-size"
        }
      ],
      "colors": [
        {
          "label": "Title",
          "description": "Primary text for the title by default; the `contrast: inverse` prop makes the title inherit the surface color so it reads correctly on a tinted or inverted backdrop.",
          "token": "--cds-text-primary"
        },
        {
          "label": "Description",
          "description": "Secondary text for the description.",
          "token": "--cds-text-secondary"
        }
      ]
    },
    "states": [
      {
        "id": "small",
        "label": "Small",
        "description": "Body-scale title with tighter block padding."
      },
      {
        "id": "default",
        "label": "Default",
        "description": "Standard heading scale."
      },
      {
        "id": "large",
        "label": "Large",
        "description": "Larger title with a description and top-aligned slots."
      }
    ],
    "behavior": [
      {
        "label": "Size choice",
        "description": "Pick small for tight groups, default for standard sections, large when a description is needed."
      },
      {
        "label": "Slots",
        "description": "Use trailing for a dropdown, action text, value, or icon."
      },
      {
        "label": "Trailing alignment",
        "description": "The trailing slot centers with the row by default. Set trailingAlign to top to pin it to the title line when a description makes the body taller, such as a count beside a titled section. Set it to baseline when the trailing content is text smaller than the title: the slot then renders on the title's line and the two sit on one baseline, rather than merely sharing a box top."
      },
      {
        "label": "Title contrast",
        "description": "Defaults to `default` (primary text); set `contrast` to `inverse` when the header sits on a tinted or inverted surface so the title inherits that surface's text color."
      }
    ],
    "accessibility": [
      {
        "label": "Heading",
        "description": "The title renders as a heading so sections are navigable."
      },
      {
        "label": "Trailing controls",
        "description": "Interactive trailing content carries its own accessible name."
      }
    ],
    "contentAdaptation": [
      {
        "label": "Wrapping title",
        "description": "The title/description body flexes and wraps while slots stay aligned."
      },
      {
        "label": "Optional slots",
        "description": "Leading, description, and trailing render only when provided."
      }
    ],
    "motionHaptics": {
      "motion": [
        {
          "label": "Static",
          "description": "SectionHeader does not animate."
        }
      ],
      "haptics": [
        {
          "label": "No feedback",
          "description": "The heading requests no haptics; trailing controls own any feedback."
        }
      ]
    },
    "platformDifferences": []
  },
  "platforms": {
    "implemented": [
      "web"
    ],
    "native": "Imported design guidance only; no native implementation or parity verification in this preview.",
    "react": {
      "implementation": "local",
      "status": "preview",
      "parity": "web-reference"
    },
    "vue": {
      "implementation": "absent",
      "parity": "not-verified",
      "status": "reference-only"
    },
    "swift": {
      "implementation": "absent",
      "parity": "not-verified",
      "status": "reference-only"
    },
    "kotlin": {
      "implementation": "absent",
      "parity": "not-verified",
      "status": "reference-only"
    }
  },
  "tokens": [
    {
      "name": "--cds-space-12",
      "light": "12px",
      "dark": "12px"
    },
    {
      "name": "--cds-space-48",
      "light": "48px",
      "dark": "48px"
    },
    {
      "name": "--cds-space-20",
      "light": "20px",
      "dark": "20px"
    },
    {
      "name": "--cds-type-h3-size",
      "light": "1.5rem",
      "dark": "1.5rem"
    },
    {
      "name": "--cds-type-body-size",
      "light": "1rem",
      "dark": "1rem"
    },
    {
      "name": "--cds-text-primary",
      "light": "#141410",
      "dark": "#f3f1ed"
    },
    {
      "name": "--cds-text-secondary",
      "light": "#646260",
      "dark": "#ffffff99"
    }
  ],
  "review": {
    "local_status": "not-reviewed",
    "source_approval": null,
    "imported_spec_status": "approved",
    "spec_origin": "imported-adapted",
    "local_spec_source_status": "approved",
    "imported_source_revision": "f96f416e1c3bfbfaffcd155a88b87b18b8bb25f1",
    "note": "Inherited specification status is provenance, not approval of the current local implementation or extracted contract."
  },
  "missing_facts": [
    {
      "code": "human-review-pending",
      "detail": "This local preview has no recorded human design or engineering sign-off."
    },
    {
      "code": "platform-parity-unverified",
      "detail": "Vue, Swift and Kotlin implementations are absent from this package; platform parity has not been verified."
    },
    {
      "code": "figma-mapping-unverified",
      "detail": "No current component-level Figma node and immutable revision have been verified for this contract."
    }
  ]
}
```

## Visual states

- [Default](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--default&viewMode=story) | export: Default | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [Small](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--small&viewMode=story) | export: Small | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [Large](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--large&viewMode=story) | export: Large | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [With Leading](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--with-leading&viewMode=story) | export: WithLeading | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [With Dropdown](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--with-dropdown&viewMode=story) | export: WithDropdown | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [With Action](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--with-action&viewMode=story) | export: WithAction | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [With Value](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--with-value&viewMode=story) | export: WithValue | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [Compared With List Section](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--compared-with-list-section&viewMode=story) | export: ComparedWithListSection | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [Dark Theme](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--dark-theme&viewMode=story) | export: DarkTheme | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [Inverse](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--inverse&viewMode=story) | export: Inverse | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

- [Guttered Container](/storybook/iframe.html?id=cloaked-design-system-organization-sectionheader--guttered-container&viewMode=story) | export: GutteredContainer | source: packages/design-system/src/components/organization/SectionHeader/SectionHeader.stories.tsx

Preview pending human sign-off. Source-derived APIs and successful checks do not certify accessibility, native parity or approval.