/**
 * Leaper Agent – Code Execution Tool
 *
 * Runs code in a subprocess sandbox.
 * Translates the core logic of Python tools/code_execution_tool.py.
 *
 * Supported languages: javascript, typescript, python, shell, bash.
 * Each run:
 *   1. Creates a temp directory with a random suffix.
 *   2. Writes the code to an appropriately-named file.
 *   3. Spawns the interpreter in that directory.
 *   4. Cleans up the temp directory even on timeout.
 * Sensitive environment variables (containing KEY, TOKEN, SECRET, PASSWORD)
 * are scrubbed from the subprocess environment.
 */
export interface CodeExecOptions {
    /** Timeout in milliseconds. Default: 30 000. */
    timeout?: number;
    /** Maximum total characters in stdout+stderr. Default: 50 000. */
    maxOutputChars?: number;
    /** Working directory for the interpreter. Default: a fresh temp dir. */
    cwd?: string;
    /** Extra environment variables merged into the scrubbed subprocess env. */
    env?: Record<string, string>;
}
export interface CodeExecResult {
    stdout: string;
    stderr: string;
    exitCode: number;
    timedOut: boolean;
    language: string;
    error?: string;
}
export type SupportedLanguage = 'javascript' | 'typescript' | 'python' | 'shell' | 'bash';
/**
 * Execute `code` in an isolated subprocess.
 *
 * The code is written to a temp file whose extension matches the language,
 * then run with the appropriate interpreter.  The temp directory is always
 * removed after execution (success, error, or timeout).
 */
export declare function executeCode(language: SupportedLanguage, code: string, opts?: CodeExecOptions): Promise<CodeExecResult>;
/**
 * Infer the language from code content using simple heuristics.
 *
 * Checks are applied in order; the first match wins.  Falls back to
 * `'javascript'` when no strong signal is found.
 */
export declare function detectLanguage(code: string): SupportedLanguage;
/**
 * Type-guard: return `true` when `lang` is one of the supported language IDs.
 */
export declare function isSupportedLanguage(lang: string): lang is SupportedLanguage;
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