/**
 * Pipeline spec validation — shared between `agentsmarket run` and `agentsmarket validate`.
 *
 * Returns:
 *   { ok: true, usesStages, warnings }  — spec is valid
 *   { ok: false, error }                — spec has issue
 *
 * v0.2 additions:
 *   - `uses@version` syntax validation (semver-like hint; full validation at runtime)
 *   - `output_format: structured_json` requires non-empty `fields: [...]`
 *   - `mcp_servers`/`mcp_tools` are arrays of strings (declaration-level only)
 *   - `working_dir` is a non-empty string
 *   - `uses_parallel` (v0.3) is rejected with a clear message
 *
 * v0.3 R6 additions (Provider ≠ Model):
 *   - When a stage declares `provider:`, the (provider, model) pair must be
 *     registered in `PROVIDER_REGISTRY` (openai, anthropic, minimax,
 *     openrouter, replicate). Validated via `validateProviderModel()` from
 *     `@agentsmarket/pipeline-runtime`. Auto-dispatch by model name removed.
 */
export interface PipelineFileSpec {
    name: string;
    version?: string;
    description?: string;
    inputs?: Record<string, unknown>;
    defaults?: {
        model?: string;
    };
    stages: Array<{
        id: string;
        model?: string;
        system?: string;
        prompt?: string;
        uses?: unknown;
        uses_parallel?: unknown;
        input?: unknown;
        output_format?: string;
        fields?: string[];
        mcp_servers?: string[];
        mcp_tools?: string[];
        working_dir?: string;
        shell?: string | {
            cmd: string;
            args?: string[];
            cwd?: string;
            timeout_ms?: number;
        };
        loop?: {
            max_iterations?: number;
            exit_when?: string | {
                outputs_key: string;
                operator: '>=' | '<=' | '==' | '!=' | '>' | '<';
                value: number | boolean | string;
            };
            body: Array<Record<string, unknown>>;
        };
        provider?: string;
        retry?: {
            attempts?: number;
            backoff?: 'exponential' | 'linear' | 'fixed';
            retryable_status?: number[];
            initial_ms?: number;
        };
        run_if?: string;
        when?: string | {
            all: string[];
        } | {
            any: string[];
        };
        model_params?: {
            temperature?: number;
            max_tokens?: number;
            top_p?: number;
            seed?: number;
            reasoning_effort?: 'low' | 'medium' | 'high';
            response_format?: 'text' | 'json_object';
            stop?: string[];
            provider_params?: Record<string, unknown>;
        };
    }>;
}
export declare const COST_PER_LLM_CALL_USDC = 0.01;
export type ValidationResult = {
    ok: true;
    usesStages: string[];
    warnings: string[];
} | {
    ok: false;
    error: string;
};
export declare function validatePipelineSpec(spec: unknown): ValidationResult;