/**
 * Decides, in one batched request, which conversion units are substantial
 * enough to earn a separate todo-planning pass. Adaptive planning trades this
 * one cheap classification for the per-unit todo call of every request it
 * judges simple, so thousands of small changes never pay for planning they do
 * not need.
 */
import type { PromptMessages } from "./direct-conversion.ts";
/** The longest task text the classifier is shown; complexity is judged from a
 * bounded excerpt, never the whole file. */
export declare const MAX_PLAN_CLASSIFICATION_INSTRUCTION_CHARS = 600;
export interface DirectPlanClassificationItem {
    /** 1-based position the model echoes back. Stable within one batch only. */
    index: number;
    targetPath: string;
    instruction: string;
    /** True when this replaces one inline @human marker rather than a whole file. */
    inline: boolean;
}
export interface DirectPlanClassificationPromptInput {
    items: readonly DirectPlanClassificationItem[];
}
/**
 * Build the deliberately code-free triage prompt. The model returns only the
 * indices that warrant planning; anything it omits stays on the single-pass
 * path, which is the entire point — the cheap default is "no planning".
 */
export declare function buildDirectPlanClassificationPrompt(input: DirectPlanClassificationPromptInput): PromptMessages;
/**
 * Strictly parse the triage protocol into the set of indices needing planning.
 * A malformed response throws so the caller can fall back to planning the batch
 * rather than silently skipping it.
 */
export declare function parseDirectPlanClassification(raw: string, count: number): Set<number>;
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