import type { CanonicalAction } from './types/task-context-envelope.js';
export declare function canonicalActionInputHash(input: Record<string, unknown>): string;
export declare function validateCanonicalActionBinding(input: {
    action: CanonicalAction;
    toolName: string;
    args: Record<string, unknown>;
}): {
    valid: true;
    actualInputHash: string;
} | {
    valid: false;
    reason: string;
    actualInputHash?: string;
};
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