/** 4-16 lowercase [a-z0-9] characters — the shape both an env-supplied and a
 *  self-minted install id must satisfy. */
export declare function isValidInstallId(id: string): boolean;
/** Get-or-create the canvas-install id every minted node id embeds. Called
 *  once at daemon boot (`crtrd.ts`) — a thrown error there fails boot loudly,
 *  which is the intended behavior for both an invalid env value and a
 *  stored/env mismatch. Single-writer transaction (mirrors
 *  `reconcileBootLiveness` in boot.ts). `env` is injectable for tests. */
export declare function resolveInstallId(env?: NodeJS.ProcessEnv): string;