Builder Impl Governance

builder · impl — the code-conformance bar, by discipline

The Builder bar at the impl gate: the conventions the component's code must satisfy. Stated once as criteria; the impl-producer builds to them, the impl-judge verifies them against the frozen suite. producer ≠ judge holds at the agent level — both are distinct agents loading this one bar. (No subjective slice at this gate; if one arose it would split into a judge-only @rubric.)

engineer

• TypeScript, no any; React 18 (createRoot, side-effect-free render).
• exactOptionalPropertyTypes honored (optional = absent, never widen to | undefined).
• DOM attribute names — aria-label not ariaLabel; aria-*/data-* pass through; forwardRef.
• className/style accept the function form (react-aria-components convention).

designer

• Tokens not literals; every visual state styled (default/hover/focus/active/disabled/loading); responsive + RTL.

a11y

• Correct role/semantics; keyboard operable; visible + managed focus; accessible name + state; axe zero violations per state.

security

• No unsanitized dangerouslySetInnerHTML; no untrusted prop → DOM/URL sink.

qa

• Empty / error / boundary states handled.

How each face uses it

• impl-producer — build so every criterion holds; coverage derives from the frozen .feature.
• impl-judge — tsc clean, lint bans ariaLabel, axe clean, scenarios pass, no tampering.