export type ContextFileInput = {
    path: string;
    content: string;
    mimeType?: string;
    vaultEntry?: {
        tags: string[];
        description: string;
    } | null;
};
export type ProcessedFile = {
    path: string;
    content: string;
    originalLines: number;
    finalLines: number;
    strategy: 'passthrough' | 'schema-extract' | 'section-extract' | 'truncate';
    annotation: string | null;
};
export type PreProcessorConfig = {
    enabled: boolean;
    maxLinesPerFile: number;
    maxTotalContextLines: number;
    strategies: Array<'schema-extract' | 'section-extract' | 'truncate'>;
    headLines: number;
    tailLines: number;
};
export declare function getDefaultConfig(): PreProcessorConfig;
export declare function preprocessContext(files: ContextFileInput[], config: PreProcessorConfig): ProcessedFile[];
/**
 * Budget-aware trim that preserves prescriptive content (P0) over prose (P2).
 * Returns the trimmed string, or `null` when the content has no P0 lines (no command
 * blocks, no CRITICAL sections) — the caller then falls back to the generic strategies,
 * so non-prescriptive files (vault notes, code) keep their existing behavior.
 *
 * Dropping is done lowest-priority-first (P2 then P1, never P0), preserving original
 * order; each run of removed lines collapses into a single `[... trimmed N lines]`
 * marker so the agent knows content was elided and can read the full file from disk.
 */
export declare function priorityAwareTrim(content: string, budgetBytes: number): string | null;