AI
Autonomous system automates environment setup across any programming language and repository
Researchers introduce RAT, a framework that uses staged configuration and language-aware tools to handle the notoriously difficult task of preparing software environments for code agents.
Setting up and configuring executable environments remains one of the most stubborn obstacles facing autonomous code agents—a problem that typically demands substantial manual intervention and repository-specific tweaks. Researchers have now published work addressing this challenge through a new automated framework.
The Problem: Manual Configuration Bottlenecks#
Agents tasked with repository-level software engineering assignments struggle when they encounter unfamiliar codebases because getting the environment ready—resolving dependencies, configuring build systems, installing tools—requires deep knowledge of each project's unique setup. Most existing solutions lean on predefined templates or work only within narrow language families, making them brittle when deployed across the diversity of real-world software repositories.
Introducing RAT: A Multi-Stage Approach#
The new system, called RAT (RunAnyThing), takes a modular and adaptable approach to this problem. Rather than trying to handle all repositories with a single logic path, it employs a multi-stage pipeline that detects the programming language(s) in use, initializes a base image environment, applies specialized toolsets tailored to each language, and runs everything in a sandboxed container to prevent system conflicts.
The architecture treats language detection as the first critical step—understanding what you're working with shapes every decision downstream. This language-aware abstraction layer then feeds into image setup, targeted configuration, and ultimately isolation within a sandbox where setup can happen safely.
Measuring Success: RATBench#
To enable fair and systematic evaluation, the team created RATBench, a benchmark designed to reflect the actual coverage and complexity of real-world repositories. Using this benchmark, experiments showed that RAT outperforms competing approaches by an average margin of 36.1% when measured by Environment Setup Success Rate (ESSR)—essentially, how often the system successfully prepares a working environment on the first attempt.
Why It Matters#
As autonomous code agents become more sophisticated and are asked to work across larger codebases and more diverse tech stacks, removing the environment configuration barrier could unlock their potential. A reliable, language-agnostic system for setting up repositories opens the door to broader automation of software engineering workflows.

