Table Header Row — Figma Assembly Rules

Status: active Figma assembly contract; composition-only.

Scope

Use this contract for the whole multi-cell header row. It owns only local composition and placement of Table Header molecules. It is deliberately separate from the table-header molecule and does not introduce a runtime component map.

Source Evidence

• Identity and exposed anatomy rechecked read-only on 2026-09-05 at exact node. This confirms the documented owner/reference, not every assembly predicate or runtime token parity.

Required Assembly

• Dependency classification: component.table-header is required because this molecule is defined as an ordered row of published Table Header molecules.
• Rule ID: table.local-owner — create _table-header as a local component owned by the current screen's _table. Never reuse _table-header from another feature or screen.
• Rule ID: table.header-row.top-align — use horizontal Auto Layout with counterAxisAlignItems=MIN; every direct Table Header instance uses layoutAlign=INHERIT and begins at y=0.
• Add one published Table Header instance per column in exact body-column order. Preserve published internals, variant properties, tokens, and layer names.
• Keep column widths paired with the matching direct cells in every local _table-row. The enclosing _table owns the shared widths and scroll minimum.
• Do not add a row-level outline, custom indicator, manually drawn sort icon, or local header-cell lookalike.

Verification Checklist

• table.local-owner: _table-header and its parent _table have the same screen-local owner; no foreign feature-local component is referenced.
• table.header-row.top-align: the row is cross-axis MIN, every direct cell inherits alignment, and every direct cell has y=0.
• Every child is a real published Table Header instance and header/body column order and widths agree.
• The local composition creates no standalone runtime API.