/**
 * @name tools/backpack/backpack-pipeline
 * @description Shared pipeline helpers for the Backpack tool family: response
 * compaction (30k char cap, 50-entry array cap, 500-char string cap with
 * base64 Solana transaction preservation, BigInt→string) and the
 * registerBackpackPipelineTool registration wrapper, mirroring the Phoenix
 * pattern.
 *
 * @module tools/backpack/backpack-pipeline
 */
import type { Server } from '@modelcontextprotocol/sdk/server/index.js';
import type { SapMcpContext } from '../../../core/src/types.js';
import { type ToolExecutionPipelineResult } from '../tool-execution-pipeline.js';
export type BackpackPipelineResult = ToolExecutionPipelineResult<Record<string, unknown>>;
export interface BackpackPipelineToolDefinition {
    readonly description: string;
    readonly inputSchema: unknown;
}
export declare function toBackpackRecord(payload: unknown): Record<string, unknown>;
export declare function backpackPipelineOk(payload: unknown): BackpackPipelineResult;
export declare function backpackPipelineError(payload: Record<string, unknown>): BackpackPipelineResult;
export declare function compactBackpackResponse(record: Record<string, unknown>): Record<string, unknown>;
export declare function backpackPipelineException(error: string, err: unknown): BackpackPipelineResult;
export declare function registerBackpackPipelineTool<TInput extends Record<string, unknown>>(server: Server, context: SapMcpContext, name: string, definition: BackpackPipelineToolDefinition, handler: (args: TInput) => Promise<BackpackPipelineResult>): void;
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