Tractor

Tractor runs pipelines of real coding agents — the Claude Code, Codex, and Gemini CLIs with native sessions — as detached processes that outlive this session. A pipeline is a small YAML or JSON file: start from an example and change two strings; you rarely author a graph.

MCP tools: start_run, get_run_status, steer_run, stop_run, get_pipeline_schema. They take file paths, not inline graphs.

The whole idea