/**
 * The three responsibility relationship kinds and the letters they carry
 * (#557, ADR 0159): `yarramate/policy@0.2#responsible`, `#consulted` and
 * `#informed`, each a subkind of core `association` from a person to the
 * subject they answer for. Accountable is not a kind: it is the existing
 * `yarramate/ownership/owner` claim. Pure, so the canvas projection, the
 * matrix builder and the editor read one table.
 */
export declare const RESPONSIBILITY_PROFILE = "yarramate/policy@0.2";
export type ResponsibilityLetter = 'R' | 'C' | 'I';
export declare const RESPONSIBILITY_KINDS: Readonly<Record<'responsible' | 'consulted' | 'informed', string>>;
export declare const RESPONSIBILITY_LETTERS: Readonly<Record<string, ResponsibilityLetter>>;
export declare const OWNER_PREDICATE = "yarramate/ownership/owner";
/** The core kinds a person subject may be, ancestors of any profile's own. */
export declare const PEOPLE_KINDS: readonly string[];
/**
 * The letter a relationship kind carries, read through its lineage
 * (ancestor-first) so a profile's own subkind of `responsible` is still an
 * R; `null` for every other kind.
 */
export declare const responsibilityLetterOf: (lineage: readonly string[] | undefined, kind: string) => ResponsibilityLetter | null;
/** Whether a concept kind is a person, read through its lineage. */
export declare const isPeopleKind: (lineage: readonly string[] | undefined, kind: string) => boolean;