/**
 * Compact projection of a persona used for picker prompts. The model only
 * needs enough to reason about intent fit — full systemPrompts would inflate
 * the prompt without improving quality.
 */
export interface PickCandidate {
    id: string;
    intent: string;
    tags: readonly string[];
    description: string;
}
export type PickConfidence = 'high' | 'medium' | 'low';
export type PickResult = {
    kind: 'match';
    personaId: string;
    confidence: 'high' | 'medium';
    reason: string;
} | {
    kind: 'no-match';
    reason: string;
} | {
    kind: 'picker-unavailable';
    message: string;
};
/**
 * Test seam describing one round-trip to the picker subprocess. Returning a
 * structured shape keeps tests free of real `spawnSync` calls while preserving
 * the stdout/stderr/status surface the parser exercises.
 */
export interface PickerSubprocessRequest {
    bin: string;
    args: readonly string[];
    systemPrompt: string;
    userPrompt: string;
    timeoutMs: number;
}
export interface PickerSubprocessResult {
    status: 'ok' | 'enoent' | 'error';
    stdout: string;
    stderr: string;
    errorMessage?: string;
}
export type PickerRunner = (req: PickerSubprocessRequest) => PickerSubprocessResult;
export interface PickPersonaOptions {
    claudeBin?: string;
    model?: string;
    timeoutMs?: number;
    runner?: PickerRunner;
}
export declare function buildUserPrompt(task: string, candidates: readonly PickCandidate[]): string;
interface PickerJsonResponse {
    persona: string | null;
    confidence: PickConfidence;
    reason: string;
}
/**
 * Parse the model's text output. Accepts either a bare JSON object or the
 * Claude CLI `--output-format json` envelope `{type, result, ...}` whose
 * `result` field carries the model text. Returns undefined when the output
 * cannot be coerced to the expected shape — callers translate that into a
 * `no-match` result.
 */
export declare function parsePickerOutput(stdout: string): PickerJsonResponse | undefined;
export declare function pickPersona(task: string, candidates: readonly PickCandidate[], opts?: PickPersonaOptions): PickResult;
export {};
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