/**
 * Decide whether the pager / chat preview should open in formatted markdown
 * (force) or raw (plain) by default. User can still toggle with f / r.
 *
 * Formatted by default:
 *  - compacted context, help / shortcuts / system docs
 *  - markdown **reads** (fs.read of .md)
 *
 * Raw by default (green/red editor view):
 *  - all file mutations (create / append / edit / write / writeMany) —
 *    including pure-green .md appends/creates so the user sees the real
 *    hunks, not a formatted doc preview
 *  - mixed red+green file edits
 *  - shell / http / web / net / scans / other tools
 */
import type { FileChange } from "../../tools/file-diff.js";
/** True for paths we treat as markdown sources. */
export declare function isMarkdownPath(path: string | undefined | null): boolean;
/**
 * Pure create / green-only write: no deleted lines (stats.removed === 0).
 * Mixed edits (red + green) stay raw so the user sees the real diff.
 */
export declare function isPureAddFileChange(change: FileChange): boolean;
export type PagerDefaultKind = "compacted" | "help" | "system" | "tool" | "file-change" | "generic";
export interface PagerDefaultViewInput {
    readonly kind?: PagerDefaultKind | undefined;
    readonly toolName?: string | undefined;
    readonly path?: string | undefined;
    readonly body?: string | undefined;
    readonly fileChange?: FileChange | undefined;
}
/**
 * Whether the pager should start in formatted (`force`) vs raw (`plain`).
 */
export declare function shouldDefaultFormattedView(input: PagerDefaultViewInput): boolean;
/** Map decision → openPager markdown arg. */
export declare function defaultPagerMarkdownMode(input: PagerDefaultViewInput): "force" | "plain";