import type { HookEnvelope, PostToolModification } from './protocol.js';
/**
 * Walk the tool_response field of a PostToolUse envelope, redacting every
 * string we find. Returns the modification envelope to emit, or null if
 * nothing changed.
 */
export declare function decidePostToolUse(env: HookEnvelope): PostToolModification | null;
/**
 * Recursively descend into objects, arrays, and strings, applying redact()
 * to every string we encounter. Accumulates redaction counts.
 */
export declare function walkAndRedact(value: unknown, totals: Map<string, number>): unknown;
//# sourceMappingURL=post-tool-use.d.ts.map