import type { OldIdentity } from './client.ts';
/** Normalize an eth uid input to `eth:<lowercase-address>`. Accepts a bare
 *  `0x…` address or an already-prefixed `eth:0x…`. */
export declare function toEthUid(addressOrUid: string): OldIdentity;
/** Persist the identity so it survives an MCP-server restart. */
export declare function persistIdentity(identity: OldIdentity): void;
/**
 * The identity the client should start with: an explicit env var wins
 * (useful for headless / CI), otherwise fall back to whatever the dev
 * authenticated with last time.
 */
export declare function resolveInitialIdentity(): OldIdentity | undefined;