Zeroshot is an open-source tool that orchestrates coding agents as an explicit multi-agent graph, ensuring the agent that writes code never approves its own work. It runs Claude Code, Codex, or GitHub Copilot as both the implementing worker and independent reviewers, routing failures through a bounded repair loop before any output is delivered. Users can customize the graph topology, assign different models to each node, and save configurations as reusable profiles. Zeroshot supports local execution, self-hosted Docker targets, and a cloud option for team queues and durable run history.