Summary
Around September 10, 2026, Atomic (by bastani-inc) released an open-source coding-agent runtime that lets teams define an engineering process in natural language as explicit execution graphs with stages, checks, and approval gates, rather than relying on prompt instructions. Runs can span hours to weeks as the runtime researches, implements, and verifies work across models such as Codex, Claude, and Copilot.
What changed
Atomic released a verifiable coding-agent runtime that converts natural-language processes into inspectable execution graphs with bounded repair loops and human approval gates, and supports multiple agent backends including Codex, Claude, Copilot, xAI, OpenRouter, Ollama, and MCP.
Why it matters
It targets the reliability gap in long-running coding agents by making the process itself checkable, shifting effort from prompt-crafting to defining verifiable stages and gates. That aligns with enterprise demand for auditable, governed agent execution.
Evidence excerpt
Atomic is the verifiable coding agent runtime: define your coding agent process in natural language with stages, checks, and approval gates instead of hoping it follows your instructions.