import type { HookDefinition, HookResult, HookEvent } from '../types.js';
import type { ToolLLM } from '../../config/tool-llm.js';
/**
 * Prompt hook runner, sends event data to an LLM via ToolLLM.
 *
 * The hook definition's `prompt` field is a template string.
 * `$ARGUMENTS` is replaced with the JSON-serialised event before
 * the prompt is sent.  The LLM response is parsed as a HookResult
 * JSON object.  If the response is not valid JSON (or is empty)
 * the hook returns `{ ok: true }` (fire-and-forget semantics).
 */
export declare function run(hook: HookDefinition, event: HookEvent, toolLLM: Pick<ToolLLM, 'chat'> | null): Promise<HookResult>;
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