/**
 * Read a vision document and hand back plain text.
 *
 * The check order is load-bearing, not stylistic: **parse → bounds → existence →
 * size → decompress**. Checking existence before bounds turns an out-of-bounds
 * path into a "file not found" and makes the command an existence oracle for
 * files outside the project — this repo has shipped that exact defect once
 * (`cost-capture-noise`, 2026-08-22).
 *
 * Requirements: project-constitution/AC-1, project-constitution/AC-4,
 * project-constitution/AC-5, project-constitution/AC-6
 *
 * @module
 */
import type { ExtractResult } from './types.js';
/** Largest vision document accepted, before anything is read (AC-5). */
export declare const MAX_SOURCE_BYTES: number;
/** Largest single archive entry accepted, declared or actual (AC-5). */
export declare const MAX_INFLATED_BYTES: number;
/** Every extension `import` accepts, for the AC-4 message. */
export declare const SUPPORTED_EXTENSIONS: readonly [".docx", ".md", ".markdown", ".txt"];
/**
 * Extract the text of a vision document.
 *
 * @param projectRoot - Absolute project root; the source must live inside it.
 * @param rawPath - The path as the user typed it, absolute or relative to cwd.
 */
export declare function extractVision(projectRoot: string, rawPath: string): ExtractResult;
/**
 * The message an unsupported format gets. Says what is accepted and what to do
 * about a PDF, because "unsupported" on its own leaves the user stuck (AC-4).
 */
export declare function unsupportedFormatHelp(detail: string): string;
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