export declare function resolveCliEntry(): string;
export interface ChildRunSpec {
    cwd: string;
    task: string;
    timeoutMs?: number;
}
export interface ChildSpawnResult {
    cwd: string;
    exitCode: number | null;
    stdout: string;
    stderr: string;
    timedOut?: boolean;
    spawnError?: string;
}
/**
 * Probe the CLI binary for a successful --version response.
 * Returns true if the entry file responds with exitCode 0, false otherwise.
 * Never throws.
 */
export declare function probeCliVersion(cliEntry: string): Promise<boolean>;
export declare class ChildRunner {
    /**
     * Optional override for the CLI entry path.
     * Production code leaves this undefined (defaults to resolveCliEntry()).
     * Tests inject the stub fixture path via the constructor to avoid
     * requiring a built dist/cli/index.js during unit testing.
     */
    private readonly _cliEntry?;
    /**
     * Optional override for the Node.js binary path.
     * Production code leaves this undefined (defaults to process.execPath).
     * Tests may inject a bad path to exercise the spawn-failure / ENOENT path.
     */
    private readonly _nodeBin?;
    constructor(options?: {
        cliEntry?: string;
        nodeBin?: string;
    });
    /**
     * Spawn one `agent-bober run <task>` child process in spec.cwd.
     * Uses process.execPath (the current Node binary) + the parent's own
     * dist/cli/index.js — never a bare PATH lookup.
     *
     * Never throws: spawn errors are captured in spawnError.
     */
    run(spec: ChildRunSpec): Promise<ChildSpawnResult>;
}
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