/**
 * v2.15.0 follow-up — G3: prd 4 必填块 checker.
 *
 * Validates that a PRD artifact body contains the 4 mandatory sections
 * required by the 12 Gaps positioning memory:
 *
 *   1. 业务场景(目标用户 / 业务流程 / 性能 / 现有系统 / 业务禁区)
 *   2. 边界 case 清单
 *   3. UI 装配意图(页面模式 / 关键交互 / 信息密度)
 *   4. 上游基线(仅 fork 场景必填)
 *
 * Returns a structured report; the CLI surfaces it as a lint
 * complement to `peaks request lint` (which checks placeholders).
 * `peaks prd check-blocks` ensures the design quality is locked at
 * the prd stage (the principle: 质量杠杆前置到 prd).
 */
export interface PrdBlockFinding {
    /** Block identifier (1-4). */
    readonly block: 1 | 2 | 3 | 4;
    /** Block name (Chinese). */
    readonly name: string;
    /** Whether the block is required (block 4 only required for fork projects). */
    readonly required: boolean;
    /** Whether the block was found in the document. */
    readonly present: boolean;
    /** The content under the heading, or null when not found. */
    readonly content: string | null;
    /** Issues detected (empty array when the block is OK). */
    readonly issues: readonly string[];
}
export interface PrdBlocksReport {
    /** Project root. */
    readonly projectRoot: string;
    /** Path to the artifact. */
    readonly artifactPath: string;
    /** Whether this is a fork project (controls block 4 required flag). */
    readonly isFork: boolean;
    /** Findings for each of the 4 blocks. */
    readonly findings: readonly PrdBlockFinding[];
    /** Overall pass/fail: all required blocks present + no issues. */
    readonly ok: boolean;
}
export declare function findPrdArtifact(projectRoot: string, requestId: string): string | null;
export declare function readPrdArtifact(artifactPath: string): string;
/**
 * Detect whether the project is a fork by looking for `.peaks/fork-state.json`
 * (the G11 CLI's state file) or `.peaks/release-state.json` history entries
 * that reference an upstream. Lightweight heuristic.
 */
export declare function detectForkProject(projectRoot: string): boolean;
export declare function checkPrdBlocks(projectRoot: string, requestId: string): PrdBlocksReport;