import type { ToolCallRepairFunction, ToolSet } from 'ai';
export declare const DEFAULT_LOOP_REMIND_AT = 3;
export declare const DEFAULT_LOOP_BLOCK_AT = 8;
export type LoopGuardVerdict = {
    action: 'allow';
    count: number;
} | {
    action: 'remind';
    count: number;
    message: string;
} | {
    action: 'block';
    count: number;
    message: string;
};
export type LoopGuardInit = {
    remindAt?: number;
    blockAt?: number;
};
export declare class ToolCallLoopTracker {
    private readonly counts;
    private readonly remindAt;
    private readonly blockAt;
    constructor(init?: LoopGuardInit);
    record(toolName: string, input: unknown): LoopGuardVerdict;
    reset(): void;
}
export type GuardedTools<T extends ToolSet> = {
    tools: T;
    reset: () => void;
};
export declare function withLoopGuard<T extends ToolSet>(tools: T, init?: LoopGuardInit): GuardedTools<T>;
export type ToolNameResolution = {
    kind: 'resolved';
    toolName: string;
} | {
    kind: 'unknown';
    message: string;
};
export type ToolCallRepairInit = {
    aliases?: Readonly<Record<string, string>>;
};
export declare function resolveToolName(requested: string, available: readonly string[], aliases?: Readonly<Record<string, string>>): ToolNameResolution;
export declare function unknownToolMessage(requested: string, available: readonly string[]): string;
export declare function makeToolCallRepairer(init?: ToolCallRepairInit): ToolCallRepairFunction<ToolSet>;