import { ToolDefinition } from '../core/schema.js';
/**
 * CommandExecutor - Executes shell commands
 * Handles parameter templating, timeouts, and error capture
 */
export declare class CommandExecutor {
    private cwd?;
    constructor(cwd?: string);
    /**
     * Execute a tool that runs a shell command.
     *
     * @param tool - Tool definition
     * @param params - Tool parameters
     * @param credentials - Optional per-call credential overrides. Keys must match the env-var
     *   names used by the tool (e.g. `SLACK_BOT_TOKEN`). When provided they are merged on top of
     *   `process.env` inside the child process so the spawned script sees them as normal env vars.
     *   Values are never logged. Falls back to the current environment when not provided.
     */
    execute(tool: ToolDefinition, params: Record<string, unknown>, credentials?: Record<string, string>): Promise<unknown>;
    /**
     * Replace parameter placeholders in a string
     */
    private templateString;
}
export default CommandExecutor;
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