/**
 * @fileoverview `brapi_dataframe_drop` — release a single dataframe by name.
 * Idempotent (returns `dropped: false` for unknown names rather than failing).
 * Drops the dataframe and its provenance metadata.
 *
 * Gated opt-in via `BRAPI_CANVAS_DROP_ENABLED` — when the operator hasn't
 * opted in, the tool is omitted from `tools/list` entirely and dataframes
 * expire via TTL when left unmanaged.
 *
 * @module mcp-server/tools/definitions/brapi-dataframe-drop.tool
 */
import { z } from '@cyanheads/mcp-ts-core';
export declare const brapiDataframeDrop: import("@cyanheads/mcp-ts-core").ToolDefinition<z.ZodObject<{
    dataframe: z.ZodString;
}, z.core.$strip>, z.ZodObject<{
    dataframe: z.ZodString;
    dropped: z.ZodBoolean;
}, z.core.$strip>, undefined, undefined>;
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