import { type PreferenceContext } from "@cotal-ai/workspace";
/** Persona selection shared by foreground and detached spawn: `--config`, then the positional, then
 *  the `persona` preference (`COTAL_DEFAULT_PERSONA`, the space's saved value, the user's, then
 *  `default`). `from` names where an implicit choice came from; it is absent for an explicit one and
 *  for the product default. */
export declare function spawnPersona(configFlag: string | undefined, positionals: readonly string[], ctx?: PreferenceContext): {
    ref: string;
    from?: string;
};
/** The harness a launch falls back to when neither `--agent` nor the persona names one, as this
 *  caller sets it: `COTAL_DEFAULT_AGENT`, then the space's saved value, then the user's. Undefined
 *  when none is set, so a manager applies its own default before the product's. */
export declare function callerHarness(space: string): string | undefined;
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