/**
 * runCjs — shared execFileAsync wrapper for all .cjs tool invocations.
 *
 * Implements DRY: AbortSignal propagation, timeout, cwd binding, and
 * stdout/stderr capture are applied consistently across all tools.
 *
 * Timeout guidance: collate 30s (large stores); store/validate 10s; config 5s.
 *
 * @param toolPath    Absolute path to the .cjs tool.
 * @param argv        Arguments to pass after "node <toolPath>".
 * @param signal      AbortSignal from tool execute — propagated to subprocess.
 * @param timeoutMs   Subprocess timeout in milliseconds.
 * @param projectRoot Directory containing .forge/ — cwd for the subprocess so
 *                    findProjectRoot() in the .cjs tool resolves correctly.
 */
export declare function runCjs(toolPath: string, argv: string[], signal: AbortSignal | undefined, timeoutMs: number, projectRoot: string): Promise<{
    stdout: string;
    stderr: string;
}>;
/** Token-compression telemetry attached to tool results (details.compression). */
export interface CompressionStats {
    tool: string;
    before: number;
    after: number;
    saved: number;
}