/**
 * Shared rendering helpers for grep-style tool outputs.
 *
 * Used by both the sandbox (`sandbox-fs.ts`) and host (`host-fs.ts`)
 * implementations so that agents see a consistent, token-efficient format:
 *
 *   Found N matches
 *   path/to/file.ts:
 *     L12: <snippet>
 *     L47: <snippet>
 *   ...
 */
export interface GrepMatch {
    /** 1-based line number. */
    line: number;
    /** Rendered snippet (already clipped to the desired length). */
    text: string;
}
export interface GrepFileMatches {
    path: string;
    matches: GrepMatch[];
}
export interface RenderOptions {
    /** When true, append the "Results truncated" footer. */
    truncated?: boolean;
    /** Limit used upstream (shown in the truncation footer). */
    limit?: number;
}
/** Render grouped grep output. `totalMatches` counts pre-group rows. */
export declare function renderGrepResults(grouped: GrepFileMatches[], totalMatches: number, opts?: RenderOptions): string;
/** Clip a line of text to a max length, preserving a truncation marker. */
export declare function clipLine(text: string, maxLen: number): string;
/**
 * Given the full matched line and the submatch byte offsets, return a window
 * of `contextChars` characters around the first submatch. Used to avoid dumping
 * entire minified lines into the context window.
 */
export declare function windowAroundSubmatch(line: string, submatchStart: number, submatchEnd: number, contextChars?: number): string;
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