import { type HookGuardResult } from '../cli/commands/sub-agent-dispatch-guard.js';
/**
 * Read the prompt size from the LLM platform's hook stdin. Different
 * LLMs send different payload shapes; we accept the most common:
 *   - Claude Code: `{"tool_name": "Bash", "tool_input": {"command": "..."}}`
 *   - Trae: `{"tool_name": "terminal", "tool_input": {"command": "..."}}`
 *
 * The hook reads the `command` (or `prompt`) field and computes the
 * byte length. If neither field is present, returns 0 (always passes).
 */
export declare function readPromptSizeFromHookStdin(stdin: unknown): number;
/**
 * Execute the hook guard via spawnSync. Returns the parsed result or
 * a fallback (allow: true) on subprocess failure.
 *
 * Prefer the in-process `evaluateHookGuard` (no subprocess) when the
 * hook is called from a TypeScript context. Use `runHookGuardSubprocess`
 * only when the hook needs to be invoked from a non-TypeScript caller
 * (e.g. a shell script that wraps the peaks CLI).
 */
export declare function runHookGuardSubprocess(prompt: string): HookGuardResult;
/**
 * Main entry point for the hook. Reads the LLM platform's stdin,
 * computes the prompt size, and returns the guard result. Used by
 * the LLM platform's hook JSON to decide whether to allow the tool
 * call.
 */
export declare function runHookGuard(stdin: unknown): HookGuardResult;