export interface PISpawnOptions {
    sessionDir: string;
    /** Session UUID for --session flag.  PI scans --session-dir to find the matching file
     *  by filename or internal session id field — no need for the full file path. */
    sessionId?: string | null;
    /** @deprecated Full path to an existing PI session JSONL file.  Prefer sessionId
     *  which lets PI handle session lookup internally.  Kept for backward compat. */
    sessionPath?: string | null;
    /** Model identifier (e.g. "deepseek-v4-flash[1m]"); context-window suffix is stripped. */
    model?: string | null;
    /** PI provider name (e.g. "anthropic", "deepseek", "openai-codex"). When set together with model,
     *  emits `--provider <name>`. When omitted, PI infers provider from model name prefix or its default.
     *  Sourced from the cortex profile's `mode` field at adapter-spawn time. */
    provider?: string | null;
    systemPrompt?: string | null;
    /** Single string or multi-value array; pi args.js:49-51 accepts repeated --append-system-prompt flags. */
    appendSystemPrompt?: string | string[] | null;
    pluginDirs?: string[] | null;
    /** PI extension file paths; each emits a repeated --extension flag (pi args.js:95-98). */
    extensionPaths?: string[] | null;
    /** Extra CLI options from profile (e.g. {"--thinking": "xhigh"}). */
    extraOption?: Record<string, string> | null;
}
export declare function buildSpawnArgs(opts: PISpawnOptions): string[];