/**
 * Canonical path aliases accepted at host and subc preparation boundaries.
 *
 * Compatibility is intentionally about decoded string values only. The
 * preparation layer must not trim, normalize, fold case, rewrite separators,
 * or resolve paths before comparing the two spellings.
 */
import { AftToolError } from "./error-contract.js";
export type CanonicalPathTool = "read" | "write" | "edit" | "zoom" | "callgraph" | "safety" | "move" | "import" | "refactor" | "grep" | "search" | "conflicts";
export declare class InvalidRequestError extends AftToolError {
    constructor(message: string);
}
/** Return false for lone UTF-16 surrogate code units. */
export declare function isWellFormedUnicodeString(value: string): boolean;
/**
 * Prepare raw arguments for one registered tool before schema validation.
 *
 * The returned object is a fresh object, and nested zoom targets are copied,
 * so an alias conflict or invalid value cannot partially mutate caller state.
 */
export declare function prepareCanonicalPathArguments(toolName: string, rawArguments: unknown): Record<string, unknown>;
/**
 * Normalize a raw edit request before a host has parsed or stripped it.
 *
 * Edit has compatibility-only top-level fields that are intentionally absent
 * from its published schema. This function therefore owns mode selection,
 * item-family validation, and scalar coercion instead of relying on a typed
 * execute handler that may never see those fields.
 */
export declare function prepareCanonicalEditArguments(toolName: string, rawArguments: unknown): Record<string, unknown>;
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