/**
 * JSON Schema walker — extracts what the fuzzer needs to know about a
 * tool's argument shape.
 *
 * v0.1 supports JSON Schema Draft 7 (the dialect the official MCP
 * filesystem server uses). We don't validate the schema — we extract
 * structural facts: which keys exist, what types they declare, which
 * are required, which look like paths or URLs.
 *
 * Heuristic shape-detection: arg names containing `path` are flagged
 * path-shaped; arg names containing `url`, `origin`, `endpoint` are
 * URL-shaped. The classifier (week 3) will refine these heuristics.
 */
/** Default seed for the deterministic fuzz PRNG (matches docs/SPEC.md). */
export declare const DEFAULT_FUZZ_SEED = 12648430;
/** Default per-tool fuzz budget (matches docs/SPEC.md). */
export declare const DEFAULT_FUZZ_BUDGET = 200;
/** Recognised JSON Schema primitive types we generate inputs for. */
export type SchemaType = "string" | "number" | "integer" | "boolean" | "array" | "object" | "null";
export interface ToolArgFact {
    /** Path within the args object — e.g. ["path"], ["options", "recursive"]. */
    path: string[];
    /** Declared JSON Schema type. `unknown` if the schema didn't say. */
    declaredType: SchemaType | "unknown";
    /** Whether this arg is required (per the schema's `required` array). */
    required: boolean;
    /** Heuristic: is this arg name path-shaped (filesystem)? */
    isPathShaped: boolean;
    /** Heuristic: is this arg name URL-shaped (network)? */
    isUrlShaped: boolean;
    /** Heuristic: is this arg name command-shaped (shell)? */
    isCommandShaped: boolean;
    /** If declared as enum, the allowed values. */
    enumValues?: readonly unknown[];
}
export interface ToolFacts {
    /** Tool name. */
    name: string;
    /** All discovered arg facts (top-level only in v0.1). */
    args: ToolArgFact[];
    /** Whether the schema declares no args at all (an args-less tool). */
    isArgless: boolean;
}
/** Walk one tool's `inputSchema`. Returns structural facts. */
export declare function extractToolFacts(name: string, inputSchema: unknown): ToolFacts;
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