/**
 * `ExtensionPicker` — a controlled multi-select over the extension catalog
 * (`GET /api/extensions`), authoring ONE extension combo (an ordered list of
 * extension names). Built on the DS `Checkbox` so features share one picker
 * instead of re-implementing a checklist (the same reason `SchemaForm`/`ToolPicker`
 * live in the SDK). It is PRESENTATIONAL: the caller fetches `available` and owns
 * the selected `value`; this component fetches nothing.
 *
 * The catalog is GROUPED by `kind`. The `backend` kind is the single NON-STACKABLE
 * one (`multiple=False`), so it is SINGLE-SELECT — checking a backend
 * extension replaces any other backend already in the combo; every other kind is
 * freely multi-select. Selection order is preserved (the combo is ordered — the
 * stacking order that produces the branch tool name), so a newly-checked extension
 * appends to the end and unchecking removes in place.
 *
 * SAFETY: an extension name AND its kind are server-supplied, so every name/kind
 * renders as TEXT through the DS `Checkbox`/`Badge` (React escapes it) — never an
 * HTML sink. Pinned by a test.
 *
 * Geometry and ink come from the design-system layout classes (`tai-stack`,
 * `tai-row`, `tai-muted`); the component carries no palette of its own.
 */
import type { Extension } from '@tai42/api-client';
export interface ExtensionPickerProps {
    /** The extension catalog (`GET /api/extensions`) the checklist is drawn from. */
    readonly available: readonly Extension[];
    /** The currently-selected extension names, in combo (stacking) order. */
    readonly value: readonly string[];
    /** Fired with the next ordered selection whenever a box toggles. */
    readonly onChange: (names: string[]) => void;
    readonly disabled?: boolean;
    readonly idPrefix?: string;
}
export declare function ExtensionPicker({ available, value, onChange, disabled, idPrefix, }: ExtensionPickerProps): import("react").JSX.Element;
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