/**
 * Pure helper functions for the chained PRs feature.
 *
 * No external dependencies — only chain-types imports.
 */
import type { ChainResult } from "./chain-types.js";
/**
 * Generate a URL-safe slug from a work item title.
 *
 * Rules:
 * 1. Lowercase
 * 2. Replace non-alphanumeric (except hyphens) with hyphens
 * 3. Collapse consecutive hyphens
 * 4. Trim leading/trailing hyphens
 * 5. Truncate to maxLength
 * 6. If truncated, trim trailing hyphen
 */
export declare function slugify(title: string, maxLength?: number): string;
/**
 * Derive a full branch name from a work item.
 *
 * Format: {prefix}/{wi-id}-{slug}
 */
export declare function deriveBranchName(prefix: string, wiId: number, title: string, slugMaxLength?: number): string;
/**
 * Build an ASCII dependency diagram with 📍 marking the current step.
 */
export declare function buildDependencyDiagram(steps: Array<{
    prId?: number;
    title: string;
}>, currentIndex: number, tracker?: {
    prId: number;
    title: string;
}): string;
/**
 * Build the Chain Context markdown section for a PR description.
 */
export declare function buildChainContext(params: {
    chainName: string;
    strategy: "feature-chain" | "stacked";
    position: number;
    total: number;
    tracker?: {
        prId: number;
        branchName: string;
    };
    dependsOn?: {
        prId: number;
        title: string;
    };
    followUp?: {
        prId: number;
        title: string;
    };
    steps: Array<{
        prId?: number;
        title: string;
        wiId: number;
    }>;
    currentIndex: number;
}): string;
/**
 * Format a ChainResult as a human-readable Markdown summary.
 */
export declare function formatChainResult(result: ChainResult): string;
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